SmtpServer by Cain O'Sullivan

<PackageReference Include="SmtpServer" Version="9.0.2" />

 SmtpServer 9.0.2

.NET SmtpServer

<package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
  <metadata>
    <id>SmtpServer</id>
    <version>9.0.2</version>
    <authors>Cain O'Sullivan</authors>
    <requireLicenseAcceptance>true</requireLicenseAcceptance>
    <license type="file">LICENSE</license>
    <licenseUrl>https://aka.ms/deprecateLicenseUrl</licenseUrl>
    <projectUrl>http://cainosullivan.com/smtpserver</projectUrl>
    <description>.NET SmtpServer</description>
    <releaseNotes>Version 9.0.2
Fixed a performance issue whereby the server would block incoming connections whilst another connection was upgrading to SSL.

Version 9
Breaking API change by removing the Certificate from the server options and adding it to the endpoint.</releaseNotes>
    <copyright>2015-2022</copyright>
    <tags>smtp smtpserver smtp server</tags>
    <repository url="https://github.com/cosullivan/SmtpServer" />
    <dependencies>
      <group targetFramework=".NETStandard2.0">
        <dependency id="System.IO.Pipelines" version="4.7.2" exclude="Build,Analyzers" />
      </group>
    </dependencies>
  </metadata>
</package>