├── .DS_Store ├── .editorconfig ├── .gitattributes ├── .github ├── .DS_Store └── workflows │ └── ci.yml ├── .gitignore ├── Build.ps1 ├── Directory.Build.props ├── Directory.Version.props ├── LICENSE ├── README.md ├── assets └── Serilog.snk ├── global.json ├── serilog-sink-nuget.png ├── serilog-sinks-email.sln ├── src └── Serilog.Sinks.Email │ ├── LoggerConfigurationEmailExtensions.cs │ ├── Properties │ └── AssemblyInfo.cs │ ├── Serilog.Sinks.Email.csproj │ └── Sinks │ └── Email │ ├── EmailMessage.cs │ ├── EmailSink.cs │ ├── EmailSinkOptions.cs │ ├── IBatchTextFormatter.cs │ ├── IEmailTransport.cs │ └── MailKitEmailTransport.cs └── test ├── Serilog.Sinks.Email.Tests ├── EmailSinkTests.cs ├── LoggerConfigurationEmailExtensionsTests.cs ├── Serilog.Sinks.Email.Tests.csproj └── Support │ ├── HtmlTableFormatter.cs │ ├── TestEmailTransport.cs │ └── UseCultureAttribute.cs └── TestHarness ├── Program.cs └── TestHarness.csproj /.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/serilog/serilog-sinks-email/2bcf54cbacd00912350ae67f0f987bf47cbaf35b/.DS_Store -------------------------------------------------------------------------------- /.editorconfig: -------------------------------------------------------------------------------- 1 | root = true 2 | 3 | [*] 4 | trim_trailing_whitespace = true 5 | insert_final_newline = true 6 | indent_style = space 7 | indent_size = 4 8 | 9 | [*.{csproj,json,config,yml,props}] 10 | indent_size = 2 11 | 12 | [*.sh] 13 | end_of_line = lf 14 | 15 | [*.{cmd, bat}] 16 | end_of_line = crlf 17 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | 3 | * text=auto 4 | -------------------------------------------------------------------------------- /.github/.DS_Store: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/serilog/serilog-sinks-email/2bcf54cbacd00912350ae67f0f987bf47cbaf35b/.github/.DS_Store -------------------------------------------------------------------------------- /.github/workflows/ci.yml: -------------------------------------------------------------------------------- 1 | # If this file is renamed, the incrementing run attempt number will be reset. 2 | 3 | name: CI 4 | 5 | on: 6 | push: 7 | branches: [ "dev", "main" ] 8 | pull_request: 9 | branches: [ "dev", "main" ] 10 | 11 | env: 12 | CI_BUILD_NUMBER_BASE: ${{ github.run_number }} 13 | CI_TARGET_BRANCH: ${{ github.head_ref || github.ref_name }} 14 | 15 | jobs: 16 | build: 17 | 18 | # The build must run on Windows so that .NET Framework targets can be built and tested. 19 | runs-on: windows-latest 20 | 21 | permissions: 22 | contents: write 23 | 24 | steps: 25 | - uses: actions/checkout@v4 26 | - name: Setup 27 | uses: actions/setup-dotnet@v4 28 | with: 29 | dotnet-version: 9.0.x 30 | - name: Compute build number 31 | shell: bash 32 | run: | 33 | echo "CI_BUILD_NUMBER=$(($CI_BUILD_NUMBER_BASE+2300))" >> $GITHUB_ENV 34 | - name: Build and Publish 35 | env: 36 | DOTNET_CLI_TELEMETRY_OPTOUT: true 37 | NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }} 38 | GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} 39 | shell: pwsh 40 | run: | 41 | ./Build.ps1 42 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | 4 | # User-specific files 5 | *.suo 6 | *.user 7 | *.sln.docstates 8 | project.lock.json 9 | 10 | # Build results 11 | [Dd]ebug/ 12 | [Dd]ebugPublic/ 13 | [Rr]elease/ 14 | [Rr]eleases/ 15 | x64/ 16 | x86/ 17 | build/ 18 | bld/ 19 | [Bb]in/ 20 | [Oo]bj/ 21 | 22 | # Roslyn cache directories 23 | *.ide/ 24 | 25 | # MSTest test Results 26 | [Tt]est[Rr]esult*/ 27 | [Bb]uild[Ll]og.* 28 | 29 | #NUNIT 30 | *.VisualState.xml 31 | TestResult.xml 32 | 33 | # Build Results of an ATL Project 34 | [Dd]ebugPS/ 35 | [Rr]eleasePS/ 36 | dlldata.c 37 | 38 | *_i.c 39 | *_p.c 40 | *_i.h 41 | *.ilk 42 | *.meta 43 | *.obj 44 | *.pch 45 | *.pdb 46 | *.pgc 47 | *.pgd 48 | *.rsp 49 | *.sbr 50 | *.tlb 51 | *.tli 52 | *.tlh 53 | *.tmp 54 | *.tmp_proj 55 | *.log 56 | *.vspscc 57 | *.vssscc 58 | .builds 59 | *.pidb 60 | *.svclog 61 | *.scc 62 | 63 | # Chutzpah Test files 64 | _Chutzpah* 65 | 66 | # Visual C++ cache files 67 | ipch/ 68 | *.aps 69 | *.ncb 70 | *.opensdf 71 | *.sdf 72 | *.cachefile 73 | 74 | # Visual Studio profiler 75 | *.psess 76 | *.vsp 77 | *.vspx 78 | 79 | # TFS 2012 Local Workspace 80 | $tf/ 81 | 82 | # Guidance Automation Toolkit 83 | *.gpState 84 | 85 | # ReSharper is a .NET coding add-in 86 | _ReSharper*/ 87 | *.[Rr]e[Ss]harper 88 | *.DotSettings.user 89 | 90 | # JustCode is a .NET coding addin-in 91 | .JustCode 92 | 93 | # TeamCity is a build add-in 94 | _TeamCity* 95 | 96 | # DotCover is a Code Coverage Tool 97 | *.dotCover 98 | 99 | # NCrunch 100 | _NCrunch_* 101 | .*crunch*.local.xml 102 | 103 | # MightyMoose 104 | *.mm.* 105 | AutoTest.Net/ 106 | 107 | # Web workbench (sass) 108 | .sass-cache/ 109 | 110 | # Installshield output folder 111 | [Ee]xpress/ 112 | 113 | # DocProject is a documentation generator add-in 114 | DocProject/buildhelp/ 115 | DocProject/Help/*.HxT 116 | DocProject/Help/*.HxC 117 | DocProject/Help/*.hhc 118 | DocProject/Help/*.hhk 119 | DocProject/Help/*.hhp 120 | DocProject/Help/Html2 121 | DocProject/Help/html 122 | 123 | # Click-Once directory 124 | publish/ 125 | 126 | # Publish Web Output 127 | *.[Pp]ublish.xml 128 | *.azurePubxml 129 | # TODO: Comment the next line if you want to checkin your web deploy settings 130 | # but database connection strings (with potential passwords) will be unencrypted 131 | *.pubxml 132 | *.publishproj 133 | 134 | # NuGet Packages 135 | *.nupkg 136 | # The packages folder can be ignored because of Package Restore 137 | **/packages/* 138 | # except build/, which is used as an MSBuild target. 139 | !**/packages/build/ 140 | # If using the old MSBuild-Integrated Package Restore, uncomment this: 141 | #!**/packages/repositories.config 142 | 143 | # Windows Azure Build Output 144 | csx/ 145 | *.build.csdef 146 | 147 | # Windows Store app package directory 148 | AppPackages/ 149 | 150 | # Others 151 | sql/ 152 | *.Cache 153 | ClientBin/ 154 | [Ss]tyle[Cc]op.* 155 | ~$* 156 | *~ 157 | *.dbmdl 158 | *.dbproj.schemaview 159 | *.pfx 160 | *.publishsettings 161 | node_modules/ 162 | 163 | # RIA/Silverlight projects 164 | Generated_Code/ 165 | 166 | # Backup & report files from converting an old project file 167 | # to a newer Visual Studio version. Backup files are not needed, 168 | # because we have git ;-) 169 | _UpgradeReport_Files/ 170 | Backup*/ 171 | UpgradeLog*.XML 172 | UpgradeLog*.htm 173 | 174 | # SQL Server files 175 | *.mdf 176 | *.ldf 177 | 178 | # Business Intelligence projects 179 | *.rdl.data 180 | *.bim.layout 181 | *.bim_*.settings 182 | 183 | # Microsoft Fakes 184 | FakesAssemblies/ 185 | /.vs 186 | 187 | .idea/ 188 | -------------------------------------------------------------------------------- /Build.ps1: -------------------------------------------------------------------------------- 1 | Write-Output "build: Tool versions follow" 2 | 3 | dotnet --version 4 | dotnet --list-sdks 5 | 6 | Write-Output "build: Build started" 7 | 8 | Push-Location $PSScriptRoot 9 | try { 10 | if(Test-Path .\artifacts) { 11 | Write-Output "build: Cleaning ./artifacts" 12 | Remove-Item ./artifacts -Force -Recurse 13 | } 14 | 15 | & dotnet restore --no-cache 16 | 17 | $dbp = [Xml] (Get-Content .\Directory.Version.props) 18 | $versionPrefix = $dbp.Project.PropertyGroup.VersionPrefix 19 | 20 | Write-Output "build: Package version prefix is $versionPrefix" 21 | 22 | $branch = @{ $true = $env:CI_TARGET_BRANCH; $false = $(git symbolic-ref --short -q HEAD) }[$NULL -ne $env:CI_TARGET_BRANCH]; 23 | $revision = @{ $true = "{0:00000}" -f [convert]::ToInt32("0" + $env:CI_BUILD_NUMBER, 10); $false = "local" }[$NULL -ne $env:CI_BUILD_NUMBER]; 24 | $suffix = @{ $true = ""; $false = "$($branch.Substring(0, [math]::Min(10,$branch.Length)) -replace '([^a-zA-Z0-9\-]*)', '')-$revision"}[$branch -eq "main" -and $revision -ne "local"] 25 | $commitHash = $(git rev-parse --short HEAD) 26 | $buildSuffix = @{ $true = "$($suffix)-$($commitHash)"; $false = "$($branch)-$($commitHash)" }[$suffix -ne ""] 27 | 28 | Write-Output "build: Package version suffix is $suffix" 29 | Write-Output "build: Build version suffix is $buildSuffix" 30 | 31 | & dotnet build -c Release --version-suffix=$buildSuffix /p:ContinuousIntegrationBuild=true 32 | if($LASTEXITCODE -ne 0) { throw "Build failed" } 33 | 34 | foreach ($src in Get-ChildItem src/*) { 35 | Push-Location $src 36 | 37 | Write-Output "build: Packaging project in $src" 38 | 39 | if ($suffix) { 40 | & dotnet pack -c Release --no-build --no-restore -o ../../artifacts --version-suffix=$suffix 41 | } else { 42 | & dotnet pack -c Release --no-build --no-restore -o ../../artifacts 43 | } 44 | if($LASTEXITCODE -ne 0) { throw "Packaging failed" } 45 | 46 | Pop-Location 47 | } 48 | 49 | foreach ($test in Get-ChildItem test/*.Tests) { 50 | Push-Location $test 51 | 52 | Write-Output "build: Testing project in $test" 53 | 54 | & dotnet test -c Release --no-build --no-restore 55 | if($LASTEXITCODE -ne 0) { throw "Testing failed" } 56 | 57 | Pop-Location 58 | } 59 | 60 | if ($env:NUGET_API_KEY) { 61 | # GitHub Actions will only supply this to branch builds and not PRs. We publish 62 | # builds from any branch this action targets (i.e. main and dev). 63 | 64 | Write-Output "build: Publishing NuGet packages" 65 | 66 | foreach ($nupkg in Get-ChildItem artifacts/*.nupkg) { 67 | & dotnet nuget push -k $env:NUGET_API_KEY -s https://api.nuget.org/v3/index.json "$nupkg" 68 | if($LASTEXITCODE -ne 0) { throw "Publishing failed" } 69 | } 70 | 71 | if (!($suffix)) { 72 | Write-Output "build: Creating release for version $versionPrefix" 73 | 74 | iex "gh release create v$versionPrefix --title v$versionPrefix --generate-notes $(get-item ./artifacts/*.nupkg) $(get-item ./artifacts/*.snupkg)" 75 | } 76 | } 77 | } finally { 78 | Pop-Location 79 | } 80 | -------------------------------------------------------------------------------- /Directory.Build.props: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | latest 7 | True 8 | 9 | true 10 | $(MSBuildThisFileDirectory)assets/Serilog.snk 11 | false 12 | enable 13 | enable 14 | true 15 | true 16 | true 17 | true 18 | snupkg 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /Directory.Version.props: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4.1.1 4 | 5 | 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | 203 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Serilog.Sinks.Email [![Build status](https://github.com/serilog/serilog-sinks-email/actions/workflows/ci.yml/badge.svg?branch=dev)](https://github.com/serilog/serilog-sinks-email/actions) [![NuGet Version](http://img.shields.io/nuget/v/Serilog.Sinks.Email.svg?style=flat)](https://www.nuget.org/packages/Serilog.Sinks.Email/) 2 | 3 | Sends log events by SMTP email. 4 | 5 | > ℹ️ Version 3.x of this package changes the name and structure of many configuration parameters from their 2.x names; see below for detailed information. 6 | 7 | **Package Id:** [Serilog.Sinks.Email](http://nuget.org/packages/serilog.sinks.email) 8 | 9 | ```csharp 10 | await using var log = new LoggerConfiguration() 11 | .WriteTo.Email( 12 | from: "app@example.com", 13 | to: "support@example.com", 14 | host: "smtp.example.com") 15 | .CreateLogger(); 16 | ``` 17 | 18 | Supported options are: 19 | 20 | | Parameter | Description | 21 | |------------------------|-------------------------------------------------------------------------------------------------------------------------------------| 22 | | `from` | The email address emails will be sent from. | 23 | | `to` | The email address emails will be sent to. Multiple addresses can be separated with commas or semicolons. | 24 | | `host` | The SMTP server to use. | 25 | | `port` | The port used for the SMTP connection. The default is 25. | 26 | | `connectionSecurity` | Choose the security applied to the SMTP connection. This enumeration type is supplied by MailKit. The default is `Auto`. | 27 | | `credentials` | The network credentials to use to authenticate with the mail server. | 28 | | `subject` | A message template describing the email subject. The default is `"Log Messages"`. | 29 | | `body` | A message template describing the format of the email body. The default is `"{Timestamp} [{Level}] {Message}{NewLine}{Exception}"`. | 30 | | `formatProvider` | Supplies culture-specific formatting information. The default is to use the current culture. | 31 | 32 | An overload accepting `EmailSinkOptions` can be used to specify advanced options such as batched and/or HTML body templates. 33 | 34 | ## Sending batch email 35 | 36 | To send batch email, supply `WriteTo.Email` with a batch size: 37 | 38 | ```csharp 39 | await using var log = new LoggerConfiguration() 40 | .WriteTo.Email( 41 | options: new() 42 | { 43 | From = "app@example.com", 44 | To = "support@example.com", 45 | Host = "smtp.example.com", 46 | }, 47 | batchingOptions: new() 48 | { 49 | BatchSizeLimit = 10, 50 | BufferingTimeLimit = TimeSpan.FromSeconds(30), 51 | }) 52 | .CreateLogger(); 53 | ``` 54 | 55 | Batch formatting can be customized using `options.Body`. 56 | 57 | ## Sending HTML email 58 | 59 | To send HTML email, specify a custom `IBatchTextFormatter` in `options.Body` and set `options.IsBodyHtml` to `true`: 60 | 61 | 62 | ```csharp 63 | await using var log = new LoggerConfiguration() 64 | .WriteTo.Email( 65 | options: new() 66 | { 67 | From = "app@example.com", 68 | To = "support@example.com", 69 | Host = "smtp.example.com", 70 | Body = new MyHtmlBodyFormatter(), 71 | IsBodyHtml = true, 72 | }, 73 | batchingOptions: new() 74 | { 75 | BatchSizeLimit = 10, 76 | BufferingTimeLimit = TimeSpan.FromSeconds(30), 77 | }) 78 | .CreateLogger(); 79 | ``` 80 | 81 | A simplistic HTML formatter is shown below: 82 | 83 | ```csharp 84 | class MyHtmlBodyFormatter : IBatchTextFormatter 85 | { 86 | public void FormatBatch(IEnumerable logEvents, TextWriter output) 87 | { 88 | output.Write(""); 89 | foreach (var logEvent in logEvents) 90 | { 91 | output.Write(""); 92 | Format(logEvent, output); 93 | output.Write(""); 94 | } 95 | 96 | output.Write("
"); 97 | } 98 | 99 | public void Format(LogEvent logEvent, TextWriter output) 100 | { 101 | using var buffer = new StringWriter(); 102 | logEvent.RenderMessage(buffer); 103 | output.Write(WebUtility.HtmlEncode(buffer.ToString())); 104 | } 105 | } 106 | ``` 107 | -------------------------------------------------------------------------------- /assets/Serilog.snk: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/serilog/serilog-sinks-email/2bcf54cbacd00912350ae67f0f987bf47cbaf35b/assets/Serilog.snk -------------------------------------------------------------------------------- /global.json: -------------------------------------------------------------------------------- 1 | { 2 | "sdk": { 3 | "version": "9.0.200", 4 | "allowPrerelease": false, 5 | "rollForward": "latestFeature" 6 | } 7 | } 8 | -------------------------------------------------------------------------------- /serilog-sink-nuget.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/serilog/serilog-sinks-email/2bcf54cbacd00912350ae67f0f987bf47cbaf35b/serilog-sink-nuget.png -------------------------------------------------------------------------------- /serilog-sinks-email.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 16 4 | VisualStudioVersion = 16.0.30011.22 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "assets", "assets", "{DACEA959-EA30-47CA-A300-6756E3EB35A4}" 7 | ProjectSection(SolutionItems) = preProject 8 | .editorconfig = .editorconfig 9 | .gitignore = .gitignore 10 | README.md = README.md 11 | assets\Serilog.snk = assets\Serilog.snk 12 | Build.ps1 = Build.ps1 13 | Directory.Build.props = Directory.Build.props 14 | Directory.Version.props = Directory.Version.props 15 | global.json = global.json 16 | EndProjectSection 17 | EndProject 18 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{340DBC35-BD09-414B-818C-978FBCA4CDF1}" 19 | EndProject 20 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{70D17E86-9325-4228-8512-547B3E0774A1}" 21 | EndProject 22 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Serilog.Sinks.Email.Tests", "test\Serilog.Sinks.Email.Tests\Serilog.Sinks.Email.Tests.csproj", "{7BC4F72D-F40B-4F7C-8EBD-E50F0D6C0D97}" 23 | EndProject 24 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Serilog.Sinks.Email", "src\Serilog.Sinks.Email\Serilog.Sinks.Email.csproj", "{96A53337-1692-4884-BE03-34A97147EACE}" 25 | EndProject 26 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestHarness", "test\TestHarness\TestHarness.csproj", "{31356ADE-0243-4286-9187-C4A398BD4887}" 27 | EndProject 28 | Global 29 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 30 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-------------------------------------------------------------------------------- 1 | // Copyright © Serilog Contributors 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // http://www.apache.org/licenses/LICENSE-2.0 7 | // 8 | // Unless required by applicable law or agreed to in writing, software 9 | // distributed under the License is distributed on an "AS IS" BASIS, 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 | // See the License for the specific language governing permissions and 12 | // limitations under the License. 13 | 14 | using System; 15 | using System.Collections.Generic; 16 | using System.Linq; 17 | using System.Net; 18 | using MailKit.Security; 19 | using Serilog.Configuration; 20 | using Serilog.Core; 21 | using Serilog.Events; 22 | using Serilog.Formatting.Display; 23 | using Serilog.Sinks.Email; 24 | // ReSharper disable MemberCanBePrivate.Global 25 | 26 | namespace Serilog; 27 | 28 | /// 29 | /// Adds the WriteTo.Email() extension method to . 30 | /// 31 | public static class LoggerConfigurationEmailExtensions 32 | { 33 | static readonly TimeSpan DefaultBufferingTimeLimit = TimeSpan.FromSeconds(30); 34 | const int DefaultQueueLimit = 10000; 35 | 36 | /// 37 | /// Adds a sink that sends log events via email. 38 | /// 39 | /// The logger configuration. 40 | /// The email address emails will be sent from. 41 | /// The email address emails will be sent to. Multiple addresses can be separated 42 | /// with commas or semicolons. 43 | /// The SMTP email server to use 44 | /// Choose the security applied to the SMTP connection. This enumeration type 45 | /// is supplied by MailKit; see for supported values. The default is 46 | /// . 47 | /// The network credentials to use to authenticate with mailServer 48 | /// A message template describing the format used to write to the sink. 49 | /// the default is "{Timestamp} [{Level}] {Message}{NewLine}{Exception}". 50 | /// Supplies culture-specific formatting information, or null. 51 | /// The subject, can be a plain string or a template such as {Timestamp} [{Level}] occurred. 52 | /// Gets or sets the port used for the SMTP connection. The default is 25. 53 | /// The minimum level for 54 | /// events passed through the sink. Ignored when is specified. 55 | /// A switch allowing the pass-through minimum level 56 | /// to be changed at runtime. 57 | /// 58 | /// Logger configuration, allowing configuration to continue. 59 | /// 60 | /// A required parameter is null. 61 | public static LoggerConfiguration Email( 62 | this LoggerSinkConfiguration loggerConfiguration, 63 | string from, 64 | string to, 65 | string host, 66 | int port = EmailSinkOptions.DefaultPort, 67 | SecureSocketOptions connectionSecurity = EmailSinkOptions.DefaultConnectionSecurity, 68 | ICredentialsByHost? credentials = null, 69 | string? subject = null, 70 | string? body = null, 71 | IFormatProvider? formatProvider = null, 72 | LogEventLevel restrictedToMinimumLevel = LevelAlias.Minimum, 73 | LoggingLevelSwitch? levelSwitch = null) 74 | { 75 | if (loggerConfiguration == null) throw new ArgumentNullException(nameof(loggerConfiguration)); 76 | if (from == null) throw new ArgumentNullException(nameof(from)); 77 | if (to == null) throw new ArgumentNullException(nameof(to)); 78 | if (host == null) throw new ArgumentNullException(nameof(host)); 79 | 80 | var connectionInfo = new EmailSinkOptions 81 | { 82 | From = from, 83 | To = SplitToAddresses(to), 84 | Host = host, 85 | Port = port, 86 | ConnectionSecurity = connectionSecurity, 87 | Credentials = credentials, 88 | IsBodyHtml = false, // `MessageTemplateTextFormatter` cannot emit valid HTML; the `EmailSinkOptions` overload must be used for this. 89 | }; 90 | 91 | if (subject != null) 92 | connectionInfo.Subject = new MessageTemplateTextFormatter(subject, formatProvider); 93 | 94 | if (body != null) 95 | connectionInfo.Body = new MessageTemplateTextFormatter(body, formatProvider); 96 | 97 | return Email( 98 | loggerConfiguration, 99 | connectionInfo, 100 | null, 101 | restrictedToMinimumLevel, 102 | levelSwitch); 103 | } 104 | 105 | /// 106 | /// Adds a sink that sends log events via email. 107 | /// 108 | /// The logger configuration. 109 | /// The connection info used for 110 | /// Optionally, a to control background batching. 111 | /// The minimum level for 112 | /// events passed through the sink. Ignored when is specified. 113 | /// A switch allowing the pass-through minimum level 114 | /// to be changed at runtime. 115 | /// 116 | /// Logger configuration, allowing configuration to continue. 117 | /// 118 | /// A required parameter is null. 119 | public static LoggerConfiguration Email( 120 | this LoggerSinkConfiguration loggerConfiguration, 121 | EmailSinkOptions options, 122 | BatchingOptions? batchingOptions = null, 123 | LogEventLevel restrictedToMinimumLevel = LevelAlias.Minimum, 124 | LoggingLevelSwitch? levelSwitch = null) 125 | { 126 | if (options == null) throw new ArgumentNullException(nameof(options)); 127 | 128 | batchingOptions ??= new BatchingOptions 129 | { 130 | // Batching not used by default: fire off an email immediately upon receiving each event. 131 | BatchSizeLimit = 1, 132 | BufferingTimeLimit = DefaultBufferingTimeLimit, 133 | EagerlyEmitFirstEvent = true, 134 | QueueLimit = DefaultQueueLimit, 135 | }; 136 | 137 | var transport = new MailKitEmailTransport(options); 138 | var sink = new EmailSink(options, transport); 139 | 140 | return loggerConfiguration.Sink(sink, batchingOptions, restrictedToMinimumLevel, levelSwitch); 141 | } 142 | 143 | 144 | internal static List SplitToAddresses(string? toEmail) 145 | { 146 | return (toEmail ?? "") 147 | .Split(';', ',') 148 | .Select(s => s.Trim()) 149 | .Where(s => !string.IsNullOrEmpty(s)) 150 | .ToList(); 151 | } 152 | } 153 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Runtime.CompilerServices; 2 | 3 | [assembly: InternalsVisibleTo("Serilog.Sinks.Email.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100fb8d13fd344a1c6fe0fe83ef33c1080bf30690765bc6eb0df26ebfdf8f21670c64265b30db09f73a0dea5b3db4c9d18dbf6d5a25af5ce9016f281014d79dc3b4201ac646c451830fc7e61a2dfd633d34c39f87b81894191652df5ac63cc40c77f3542f702bda692e6e8a9158353df189007a49da0f3cfd55eb250066b19485ec")] 4 | [assembly: InternalsVisibleTo("DynamicProxyGenAssembly2, PublicKey=0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7")] 5 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Serilog.Sinks.Email.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | Send Serilog events as SMTP email using MailKit. 4 | Serilog Contributors 5 | net462;net471 6 | $(TargetFrameworks);netstandard2.0;net6.0;net8.0;net9.0 7 | serilog;smtp;mailkit 8 | serilog-sink-nuget.png 9 | https://serilog.net/ 10 | Apache-2.0 11 | 12 | true 13 | README.md 14 | Serilog 15 | true 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Sinks/Email/EmailMessage.cs: -------------------------------------------------------------------------------- 1 | // Copyright © Serilog Contributors 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // http://www.apache.org/licenses/LICENSE-2.0 7 | // 8 | // Unless required by applicable law or agreed to in writing, software 9 | // distributed under the License is distributed on an "AS IS" BASIS, 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 | // See the License for the specific language governing permissions and 12 | // limitations under the License. 13 | 14 | using System.Collections.Generic; 15 | 16 | namespace Serilog.Sinks.Email; 17 | 18 | class EmailMessage(string from, IEnumerable to, string subject, string body, bool isBodyHtml) 19 | { 20 | public string From { get; } = from; 21 | 22 | public string Subject { get; } = subject; 23 | 24 | public string Body { get; } = body; 25 | 26 | public bool IsBodyHtml { get; } = isBodyHtml; 27 | 28 | public IEnumerable To { get; } = to; 29 | } 30 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Sinks/Email/EmailSink.cs: -------------------------------------------------------------------------------- 1 | // Copyright © Serilog Contributors 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // http://www.apache.org/licenses/LICENSE-2.0 7 | // 8 | // Unless required by applicable law or agreed to in writing, software 9 | // distributed under the License is distributed on an "AS IS" BASIS, 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 | // See the License for the specific language governing permissions and 12 | // limitations under the License. 13 | 14 | using System; 15 | using System.Collections.Generic; 16 | using System.IO; 17 | using System.Threading.Tasks; 18 | using Serilog.Events; 19 | using System.Linq; 20 | using Serilog.Core; 21 | using Serilog.Formatting; 22 | 23 | namespace Serilog.Sinks.Email; 24 | 25 | class EmailSink : IBatchedLogEventSink, IDisposable 26 | { 27 | readonly EmailSinkOptions _sinkOptions; 28 | readonly IEmailTransport _emailTransport; 29 | 30 | /// 31 | /// Construct a sink emailing with the specified details. 32 | /// 33 | /// Connection information used to construct the SMTP client and mail messages. 34 | /// The email transport to use. 35 | /// connectionInfo 36 | public EmailSink(EmailSinkOptions options, IEmailTransport emailTransport) 37 | { 38 | _sinkOptions = options ?? throw new ArgumentNullException(nameof(options)); 39 | _emailTransport = emailTransport ?? throw new ArgumentNullException(nameof(emailTransport)); 40 | } 41 | 42 | /// 43 | /// Emit a batch of log events, running asynchronously. 44 | /// 45 | /// The events to emit. 46 | public Task EmitBatchAsync(IReadOnlyCollection events) 47 | { 48 | if (events == null) 49 | throw new ArgumentNullException(nameof(events)); 50 | 51 | var body = new StringWriter(); 52 | 53 | if (_sinkOptions.Body is IBatchTextFormatter batchTextFormatter) 54 | { 55 | batchTextFormatter.FormatBatch(events, body); 56 | } 57 | else 58 | { 59 | foreach (var logEvent in events) 60 | { 61 | _sinkOptions.Body.Format(logEvent, body); 62 | } 63 | } 64 | 65 | var subject = ComputeMailSubject(_sinkOptions.Subject, events); 66 | 67 | var email = new EmailMessage( 68 | _sinkOptions.From, 69 | _sinkOptions.To, 70 | subject, 71 | body.ToString(), 72 | _sinkOptions.IsBodyHtml); 73 | 74 | return _emailTransport.SendMailAsync(email); 75 | } 76 | 77 | internal static string ComputeMailSubject(ITextFormatter subjectLineFormatter, IEnumerable events) 78 | { 79 | var subject = new StringWriter(); 80 | subjectLineFormatter.Format(events.OrderByDescending(e => e.Level).First(), subject); 81 | var subjectAsText = subject.ToString(); 82 | var firstLineOfSubject = subjectAsText.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries) 83 | .FirstOrDefault() ?? string.Empty; 84 | return firstLineOfSubject; 85 | } 86 | 87 | public Task OnEmptyBatchAsync() 88 | { 89 | return Task.FromResult(false); 90 | } 91 | 92 | public void Dispose() 93 | { 94 | _emailTransport.Dispose(); 95 | } 96 | } 97 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Sinks/Email/EmailSinkOptions.cs: -------------------------------------------------------------------------------- 1 | // Copyright © Serilog Contributors 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // http://www.apache.org/licenses/LICENSE-2.0 7 | // 8 | // Unless required by applicable law or agreed to in writing, software 9 | // distributed under the License is distributed on an "AS IS" BASIS, 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 | // See the License for the specific language governing permissions and 12 | // limitations under the License. 13 | 14 | using System; 15 | using System.Collections.Generic; 16 | using System.ComponentModel; 17 | using System.Net; 18 | using MailKit.Security; 19 | using Serilog.Formatting; 20 | using Serilog.Formatting.Display; 21 | 22 | // ReSharper disable AutoPropertyCanBeMadeGetOnly.Global 23 | // ReSharper disable PropertyCanBeMadeInitOnly.Global 24 | // ReSharper disable UnusedAutoPropertyAccessor.Global 25 | 26 | namespace Serilog.Sinks.Email; 27 | 28 | /// 29 | /// Connection information for use by the Email sink. 30 | /// 31 | public sealed class EmailSinkOptions 32 | { 33 | internal const int DefaultPort = 25; 34 | const string DefaultSubject = "Log Messages"; 35 | const string DefaultBody = "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level}] {Message}{NewLine}{Exception}"; 36 | internal const SecureSocketOptions DefaultConnectionSecurity = SecureSocketOptions.Auto; 37 | 38 | /// 39 | /// Constructs an with default options. 40 | /// 41 | public EmailSinkOptions() 42 | { 43 | } 44 | 45 | /// 46 | /// The email address emails will be sent from. 47 | /// 48 | public string From { get; set; } = null!; 49 | 50 | /// 51 | /// The email address(es) emails will be sent to. 52 | /// 53 | public List To { get; set; } = []; 54 | 55 | /// 56 | /// The SMTP email server to use. 57 | /// 58 | public string Host { get; set; } = null!; 59 | 60 | /// 61 | /// Gets or sets the port used for the SMTP connection. The default is 25. 62 | /// 63 | public int Port { get; set; } = DefaultPort; 64 | 65 | /// 66 | /// Gets or sets the credentials used for authentication. 67 | /// 68 | public ICredentialsByHost? Credentials { get; set; } 69 | 70 | /// 71 | /// The implementation to format email subjects. Specify 72 | /// null to use the default subject. Consider using or 73 | /// Serilog.Expressions templates. 74 | /// 75 | public ITextFormatter Subject { get; set; } = new MessageTemplateTextFormatter(DefaultSubject); 76 | 77 | /// 78 | /// The or implementation 79 | /// to write log entries to email. Specify null to use the default body. Consider using 80 | /// or Serilog.Expressions templates. 81 | /// 82 | public ITextFormatter Body { get; set; } = new MessageTemplateTextFormatter(DefaultBody); 83 | 84 | /// 85 | /// Sets whether the body contents of the email is HTML. Defaults to false. 86 | /// 87 | public bool IsBodyHtml { get; set; } 88 | 89 | /// 90 | /// Choose the security applied to the SMTP connection. This enumeration type is supplied by MailKit; see 91 | /// for supported values. The default is 92 | /// . 93 | /// 94 | public SecureSocketOptions ConnectionSecurity { get; set; } = DefaultConnectionSecurity; 95 | 96 | /// 97 | /// Provides a method that validates server certificates. 98 | /// 99 | public System.Net.Security.RemoteCertificateValidationCallback? ServerCertificateValidationCallback { get; set; } 100 | } 101 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Sinks/Email/IBatchTextFormatter.cs: -------------------------------------------------------------------------------- 1 | // Copyright © Serilog Contributors 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // http://www.apache.org/licenses/LICENSE-2.0 7 | // 8 | // Unless required by applicable law or agreed to in writing, software 9 | // distributed under the License is distributed on an "AS IS" BASIS, 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 | // See the License for the specific language governing permissions and 12 | // limitations under the License. 13 | 14 | using System.Collections.Generic; 15 | using System.IO; 16 | using Serilog.Events; 17 | using Serilog.Formatting; 18 | 19 | namespace Serilog.Sinks.Email; 20 | 21 | /// 22 | /// An extension of for handling batches of log events. 23 | /// Use this interface when more control over the formatting of multiple log events is required. 24 | /// 25 | /// Pass an instance for the argument when configuring 26 | /// the sink. 27 | /// 28 | /// This interface might be used to write a header and/or a footer before/after formatting multiple log events, 29 | /// for example to format the events inside a table of an html email. It could also be used to group events by log level. 30 | /// 31 | /// 32 | /// class HtmlTableFormatter : IBatchTextFormatter 33 | /// { 34 | /// public void FormatBatch(IEnumerable<LogEvent> logEvents, TextWriter output) 35 | /// { 36 | /// output.Write("<table>"); 37 | /// foreach (var logEvent in logEvents) 38 | /// { 39 | /// Format(logEvent, output); 40 | /// } 41 | /// output.Write("</table>"); 42 | /// } 43 | /// 44 | /// public void Format(LogEvent logEvent, TextWriter output) 45 | /// { 46 | /// output.Write("<tr>"); 47 | /// using var buffer = new StringWriter(); 48 | /// logEvent.RenderMessage(buffer); 49 | /// output.Write(WebUtility.HtmlEncode(buffer.ToString())); 50 | /// output.Write("</tr>"); 51 | /// } 52 | /// } 53 | /// 54 | /// 55 | /// 56 | /// 57 | public interface IBatchTextFormatter : ITextFormatter 58 | { 59 | /// Format the log events into the output. 60 | /// The events to format. 61 | /// The output. 62 | void FormatBatch(IEnumerable logEvents, TextWriter output); 63 | } 64 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Sinks/Email/IEmailTransport.cs: -------------------------------------------------------------------------------- 1 | // Copyright © Serilog Contributors 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // http://www.apache.org/licenses/LICENSE-2.0 7 | // 8 | // Unless required by applicable law or agreed to in writing, software 9 | // distributed under the License is distributed on an "AS IS" BASIS, 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 | // See the License for the specific language governing permissions and 12 | // limitations under the License. 13 | 14 | using System; 15 | using System.Threading.Tasks; 16 | 17 | namespace Serilog.Sinks.Email; 18 | 19 | interface IEmailTransport : IDisposable 20 | { 21 | Task SendMailAsync(EmailMessage emailMessage); 22 | } 23 | -------------------------------------------------------------------------------- /src/Serilog.Sinks.Email/Sinks/Email/MailKitEmailTransport.cs: -------------------------------------------------------------------------------- 1 | // Copyright © Serilog Contributors 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // http://www.apache.org/licenses/LICENSE-2.0 7 | // 8 | // Unless required by applicable law or agreed to in writing, software 9 | // distributed under the License is distributed on an "AS IS" BASIS, 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 | // See the License for the specific language governing permissions and 12 | // limitations under the License. 13 | 14 | using System.Linq; 15 | using System.Text; 16 | using System.Threading.Tasks; 17 | using MailKit.Net.Smtp; 18 | using MimeKit; 19 | 20 | namespace Serilog.Sinks.Email; 21 | 22 | class MailKitEmailTransport(EmailSinkOptions options) : IEmailTransport 23 | { 24 | public async Task SendMailAsync(EmailMessage emailMessage) 25 | { 26 | var fromAddress = MailboxAddress.Parse(emailMessage.From); 27 | using var mimeMessage = new MimeMessage(); 28 | mimeMessage.From.Add(fromAddress); 29 | mimeMessage.To.AddRange(emailMessage.To.Select(MailboxAddress.Parse)); 30 | mimeMessage.Subject = emailMessage.Subject; 31 | mimeMessage.Body = options.IsBodyHtml 32 | ? new BodyBuilder { HtmlBody = emailMessage.Body }.ToMessageBody() 33 | : new BodyBuilder { TextBody = emailMessage.Body }.ToMessageBody(); 34 | 35 | using var smtpClient = OpenConnectedSmtpClient(); 36 | await smtpClient.SendAsync(mimeMessage); 37 | await smtpClient.DisconnectAsync(quit: true); 38 | } 39 | 40 | SmtpClient OpenConnectedSmtpClient() 41 | { 42 | var smtpClient = new SmtpClient(); 43 | 44 | if (string.IsNullOrWhiteSpace(options.Host)) return smtpClient; 45 | 46 | if (options.ServerCertificateValidationCallback != null) 47 | { 48 | smtpClient.ServerCertificateValidationCallback += options.ServerCertificateValidationCallback; 49 | } 50 | 51 | smtpClient.Connect(options.Host, options.Port, options.ConnectionSecurity); 52 | 53 | if (options.Credentials != null) 54 | { 55 | smtpClient.Authenticate( 56 | Encoding.UTF8, 57 | options.Credentials.GetCredential( 58 | options.Host, options.Port, "smtp")); 59 | } 60 | return smtpClient; 61 | } 62 | 63 | public void Dispose() 64 | { 65 | } 66 | } 67 | -------------------------------------------------------------------------------- /test/Serilog.Sinks.Email.Tests/EmailSinkTests.cs: -------------------------------------------------------------------------------- 1 | using Serilog.Debugging; 2 | using Serilog.Events; 3 | using Serilog.Formatting.Display; 4 | using Serilog.Parsing; 5 | using System; 6 | using System.Collections.Generic; 7 | using System.Linq; 8 | using System.Threading.Tasks; 9 | using Serilog.Configuration; 10 | using Serilog.Sinks.Email.Tests.Support; 11 | using Xunit; 12 | using Xunit.Abstractions; 13 | 14 | namespace Serilog.Sinks.Email.Tests; 15 | 16 | public class EmailSinkTests 17 | { 18 | public EmailSinkTests(ITestOutputHelper outputHelper) 19 | { 20 | SelfLog.Enable(outputHelper.WriteLine); 21 | } 22 | 23 | [Fact(Skip = "Requires a localhost mail server")] 24 | public void Works() 25 | { 26 | var selfLogMessages = new List(); 27 | SelfLog.Enable(selfLogMessages.Add); 28 | 29 | using (var emailLogger = new LoggerConfiguration() 30 | .WriteTo.Email( 31 | from: "from@localhost.local", 32 | to: "to@localhost.local", 33 | host: "localhost", 34 | body: "[{Level}] {Message}{NewLine}{Exception}", 35 | subject: "subject") 36 | .CreateLogger()) 37 | { 38 | emailLogger.Information("test {test}", "test"); 39 | } 40 | 41 | Assert.Equal(Enumerable.Empty(), selfLogMessages); 42 | } 43 | 44 | [Fact(Skip = "Requires a smtp mail server")] 45 | public void WorksMultipleEventsInOneMail() 46 | { 47 | var selfLogMessages = new List(); 48 | SelfLog.Enable(selfLogMessages.Add); 49 | 50 | using (var emailLogger = new LoggerConfiguration() 51 | .WriteTo.Email( 52 | from: "from@smtpserver.local", 53 | to: "to@smtpserver.local", 54 | host: "smtpserver.local", 55 | body: "[{Level}] {Message}{NewLine}{Exception}", 56 | subject: "test subject") 57 | .CreateLogger()) 58 | { 59 | emailLogger.Information("first test {test}", "test1"); 60 | emailLogger.Error("second {test}", "test2"); 61 | emailLogger.Fatal("third {test}", "test3"); 62 | } 63 | 64 | Assert.Equal(Enumerable.Empty(), selfLogMessages); 65 | } 66 | 67 | [Fact] 68 | public void EmailTransportIsDisposedWhenEmailSinkIsDisposed() 69 | { 70 | var transport = new TestEmailTransport(); 71 | var emailSink = CreateDefaultEmailSink(new EmailSinkOptions(), transport); 72 | 73 | emailSink.Dispose(); 74 | 75 | Assert.True(transport.IsDisposed); 76 | } 77 | 78 | [Fact] 79 | [UseCulture("en-us")] 80 | public async Task SendEmailIsCorrectlyCalledWhenEventAreLogged() 81 | { 82 | var emailConnectionInfo = new EmailSinkOptions 83 | { 84 | To = ["to@localhost.local"], 85 | From = "from@localhost.local", 86 | Body = new MessageTemplateTextFormatter("[{Level}] {Message}{NewLine}{Exception}"), 87 | Subject = new MessageTemplateTextFormatter("[{Level}] A message") 88 | }; 89 | 90 | var transport = new TestEmailTransport(); 91 | 92 | var emailSink = CreateDefaultEmailSink(emailConnectionInfo, transport); 93 | 94 | await emailSink.EmitBatchAsync(new[] 95 | { 96 | new LogEvent( 97 | DateTimeOffset.Now, 98 | LogEventLevel.Error, 99 | // ReSharper disable once NotResolvedInText 100 | new ArgumentOutOfRangeException("parameter1", "Message of the exception"), 101 | new MessageTemplate("Subject", 102 | new MessageTemplateToken[] 103 | { 104 | new PropertyToken("Message", "A multiline" + Environment.NewLine + "Message") 105 | }) 106 | , Enumerable.Empty()) 107 | }); 108 | emailSink.Dispose(); 109 | 110 | var actual = transport.Sent.Single(); 111 | 112 | Assert.Equal("[Error] A multiline" + Environment.NewLine 113 | + "Message" + Environment.NewLine 114 | + "System.ArgumentOutOfRangeException: Message of the exception" 115 | + " (Parameter 'parameter1')" 116 | + Environment.NewLine + "", actual.Body); 117 | Assert.Equal("[Error] A message", actual.Subject); 118 | Assert.Equal("from@localhost.local", actual.From); 119 | Assert.Equal(new[] { "to@localhost.local" }, actual.To); 120 | Assert.False(actual.IsBodyHtml); 121 | } 122 | 123 | [Fact] 124 | public void MultilineMessageCreatesSubjectWithTheFirstLineOnly() 125 | { 126 | var subjectLineFormatter = new MessageTemplateTextFormatter("{Message}", null); 127 | 128 | var logEvents = new[] 129 | { 130 | new LogEvent(DateTimeOffset.Now, LogEventLevel.Error, new Exception("An exception occured"), 131 | new MessageTemplate(@"Subject", 132 | new MessageTemplateToken[]{new PropertyToken("Message", "A multiline" + Environment.NewLine + "Message")}) 133 | , Enumerable.Empty()) 134 | }; 135 | var mailSubject = EmailSink.ComputeMailSubject(subjectLineFormatter, logEvents); 136 | 137 | Assert.Equal("A multiline", mailSubject); 138 | } 139 | 140 | [Fact] 141 | public void WorksWithIBatchTextFormatter() 142 | { 143 | var emailConnectionInfo = new EmailSinkOptions 144 | { 145 | To = ["to@example.com"], 146 | From = "from@localhost.local", 147 | IsBodyHtml = true, 148 | Body = new HtmlTableFormatter() 149 | }; 150 | 151 | var emailTransport = new TestEmailTransport(); 152 | var sink = new EmailSink(emailConnectionInfo, emailTransport); 153 | 154 | using (var emailLogger = new LoggerConfiguration() 155 | .WriteTo.Sink(sink, new BatchingOptions()) 156 | .CreateLogger()) 157 | { 158 | emailLogger.Information("Information"); 159 | emailLogger.Warning("Warning"); 160 | emailLogger.Error(""); 161 | } 162 | 163 | var single = emailTransport.Sent.Single(); 164 | Assert.True(single.IsBodyHtml); 165 | Assert.Equal("InformationWarning<Error>
", single.Body); 166 | } 167 | 168 | static EmailSink CreateDefaultEmailSink(EmailSinkOptions options, IEmailTransport transport) 169 | { 170 | var emailSink = new EmailSink( 171 | options, 172 | transport); 173 | return emailSink; 174 | } 175 | } 176 | -------------------------------------------------------------------------------- /test/Serilog.Sinks.Email.Tests/LoggerConfigurationEmailExtensionsTests.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using Xunit; 3 | 4 | namespace Serilog.Sinks.Email.Tests; 5 | 6 | public class LoggerConfigurationEmailExtensionsTests 7 | { 8 | public static object?[][] GetMailAddressSplitCases() 9 | { 10 | return 11 | [ 12 | [null, Array.Empty()], 13 | ["", Array.Empty()], 14 | ["to@localhost", new[] {"to@localhost" }], 15 | ["to@localhost, Example ; Another ", new[] {"to@localhost", "Example ", "Another " }] 16 | ]; 17 | } 18 | 19 | [Theory] 20 | [MemberData(nameof(GetMailAddressSplitCases))] 21 | public void SplitsMailAddressesCorrectly(string? to, string[] expected) 22 | { 23 | var actual = LoggerConfigurationEmailExtensions.SplitToAddresses(to); 24 | Assert.Equivalent(expected, actual); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /test/Serilog.Sinks.Email.Tests/Serilog.Sinks.Email.Tests.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | net8.0;net9.0 5 | true 6 | false 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | all 18 | runtime; build; native; contentfiles; analyzers 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /test/Serilog.Sinks.Email.Tests/Support/HtmlTableFormatter.cs: -------------------------------------------------------------------------------- 1 | using System.Collections.Generic; 2 | using System.IO; 3 | using System.Net; 4 | using Serilog.Events; 5 | 6 | namespace Serilog.Sinks.Email.Tests.Support; 7 | 8 | class HtmlTableFormatter : IBatchTextFormatter 9 | { 10 | public void FormatBatch(IEnumerable logEvents, TextWriter output) 11 | { 12 | output.Write(""); 13 | foreach (var logEvent in logEvents) 14 | { 15 | Format(logEvent, output); 16 | } 17 | 18 | output.Write("
"); 19 | } 20 | 21 | public void Format(LogEvent logEvent, TextWriter output) 22 | { 23 | output.Write(""); 24 | using var buffer = new StringWriter(); 25 | logEvent.RenderMessage(buffer); 26 | output.Write(WebUtility.HtmlEncode(buffer.ToString())); 27 | output.Write(""); 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /test/Serilog.Sinks.Email.Tests/Support/TestEmailTransport.cs: -------------------------------------------------------------------------------- 1 | using System.Collections.Generic; 2 | using System.Threading.Tasks; 3 | 4 | namespace Serilog.Sinks.Email.Tests.Support; 5 | 6 | class TestEmailTransport : IEmailTransport 7 | { 8 | public List Sent { get; } = new(); 9 | public bool IsDisposed { get; set; } 10 | 11 | public void Dispose() 12 | { 13 | IsDisposed = true; 14 | } 15 | 16 | public Task SendMailAsync(EmailMessage emailMessage) 17 | { 18 | Sent.Add(emailMessage); 19 | return Task.CompletedTask; 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /test/Serilog.Sinks.Email.Tests/Support/UseCultureAttribute.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Globalization; 3 | using System.Reflection; 4 | using System.Threading; 5 | using Xunit.Sdk; 6 | 7 | // ReSharper disable MemberCanBePrivate.Global 8 | // ReSharper disable InconsistentNaming 9 | 10 | namespace Serilog.Sinks.Email.Tests.Support; 11 | 12 | // This class courtesy of the xUnit samples at https://github.com/xunit/samples.xunit/blob/main/UseCulture/UseCultureAttribute.cs 13 | 14 | /// 15 | /// Apply this attribute to your test method to replace the 16 | /// and 17 | /// with another culture. 18 | /// 19 | [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)] 20 | class UseCultureAttribute : BeforeAfterTestAttribute 21 | { 22 | readonly Lazy _culture; 23 | readonly Lazy _uiCulture; 24 | 25 | CultureInfo? _originalCulture; 26 | CultureInfo? _originalUiCulture; 27 | 28 | /// 29 | /// Replaces the culture and UI culture of the current thread with 30 | /// 31 | /// 32 | /// The name of the culture. 33 | /// 34 | /// 35 | /// This constructor overload uses for both 36 | /// and . 37 | /// 38 | /// 39 | public UseCultureAttribute(string culture) 40 | : this(culture, culture) { } 41 | 42 | /// 43 | /// Replaces the culture and UI culture of the current thread with 44 | /// and 45 | /// 46 | /// The name of the culture. 47 | /// The name of the UI culture. 48 | public UseCultureAttribute(string culture, string uiCulture) 49 | { 50 | _culture = new Lazy(() => new CultureInfo(culture, false)); 51 | _uiCulture = new Lazy(() => new CultureInfo(uiCulture, false)); 52 | } 53 | 54 | /// 55 | /// Gets the culture. 56 | /// 57 | public CultureInfo Culture => _culture.Value; 58 | 59 | /// 60 | /// Gets the UI culture. 61 | /// 62 | public CultureInfo UICulture => _uiCulture.Value; 63 | 64 | /// 65 | /// Stores the current 66 | /// and 67 | /// and replaces them with the new cultures defined in the constructor. 68 | /// 69 | /// The method under test 70 | public override void Before(MethodInfo methodUnderTest) 71 | { 72 | _originalCulture = Thread.CurrentThread.CurrentCulture; 73 | _originalUiCulture = Thread.CurrentThread.CurrentUICulture; 74 | 75 | Thread.CurrentThread.CurrentCulture = Culture; 76 | Thread.CurrentThread.CurrentUICulture = UICulture; 77 | 78 | CultureInfo.CurrentCulture.ClearCachedData(); 79 | CultureInfo.CurrentUICulture.ClearCachedData(); 80 | } 81 | 82 | /// 83 | /// Restores the original and 84 | /// to 85 | /// 86 | /// The method under test 87 | public override void After(MethodInfo methodUnderTest) 88 | { 89 | Thread.CurrentThread.CurrentCulture = _originalCulture!; 90 | Thread.CurrentThread.CurrentUICulture = _originalUiCulture!; 91 | 92 | CultureInfo.CurrentCulture.ClearCachedData(); 93 | CultureInfo.CurrentUICulture.ClearCachedData(); 94 | } 95 | } 96 | -------------------------------------------------------------------------------- /test/TestHarness/Program.cs: -------------------------------------------------------------------------------- 1 | using Serilog; 2 | using Serilog.Debugging; 3 | 4 | SelfLog.Enable(Console.Error); 5 | 6 | Log.Logger = new LoggerConfiguration() 7 | .WriteTo.Email("from@localhost", "to@localhost", "localhost") 8 | .CreateLogger(); 9 | 10 | Log.Information("Hello, world!"); 11 | 12 | await Log.CloseAndFlushAsync(); 13 | -------------------------------------------------------------------------------- /test/TestHarness/TestHarness.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | Exe 5 | net9.0 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | --------------------------------------------------------------------------------