• Updated MailKit ver. 4.16.0 (Security fix)
• Updated NLog ver. 6.1.3

👍 Enhancements

• Skip removing XOAUTH2 from AuthenticationMechanisms when OAuth2 @snakefoot (#246)
• Support SmtpAuthenticationMode.Ntlm using Windows Default Credentials @snakefoot (#244)
• Improved upfront validation of configured email addresses (To / From / Cc / Bcc) @snakefoot (#241)

👍 Enhancements

• Update to MailKit 4.15.1 and NLog 6.1.1 @304NotModified (#236)

• #228 NLog v6.0.5 @snakefoot

• #227 SmtpAuthenticationMode.OAuth2 with SmtpUserName (OAuth ClientId) and SmtpPassword (OAuth ClientSecret) @snakefoot

• Updated to NLog v6.0.2

• #224 Updated NLog v6 @snakefoot
• #224 Enable Nullable API @snakefoot

Misc

• Update version to 5.3 @304NotModified (#223)
• Added support for RequireTLS @snakefoot (#222)
• Fixed Sonar Code smell @snakefoot (#220)
• Updated README.md of how to register from code @snakefoot (#188)

↜ Other dependencies

• Updated dependency MailKit to 4.7.1.1 to fix security issues (#222)
• Bump Microsoft.SourceLink.GitHub from 1.1.1 to 8.0.0 @dependabot (#195)

🚀 Features

• Added support for PickupDirectoryLocation @snakefoot (#178)

🚀 Features

• Added support for MailHeaders (align with NLog MailTarget) @snakefoot (#154)

🔧 Maintenance

• Improve code-coverage with test of message body header and footer @snakefoot (#175)
• Improve code-coverage by testing batch of LogEvents @snakefoot (#174)
• Reduce InternalLogger.Debug logging to one line @snakefoot (#173)
• Added support for MailHeaders (unit test) @snakefoot (#172)

↜ Dependencies

• Updated dependency NLog to v5.2.2 @snakefoot (#170)