GitHub - benningm/perl-Mail-STS: library for looking up MTA-STS policies
Perl - Sending Email - YouTube
GitHub - plobbes/mail-imapclient: Mail::IMAPClient is a Perl module that provides an interface for communicating with an IMAP server as an IMAP client.
Form mail script selection guide | HTML Form Guide
Skiguide Mike Perl
Sending Emails with Perl - Tutorial with Examples | Mailtrap Blog