Since May 2022, Google decided to drop support for “Less Secure Apps”. This means if your app is using SMTP, it will not work anymore. If you are looking for an easy fix to send e-mails from your .NET code again, keep reading! 

Google is bringing AMP, its cut-down version of HTML, to email. Starting today, Gmail on the Web will be able to support embedded AMP content, with support rolling out to mobile clients later.