Multi Theft Auto is a game engine
A fast, highly extensible, and event driven SMTP server
Rapid spam filtering system
Insular email distribution - mail server as Docker images
SMTP email proxy and relay server
The first Open-Source high-performance MTA for high-volume senders
WS-PGRADE/gUSE grid and cloud science gateway framework
secure, reliable, fast MTA
Mini SMTP server written in golang
Email Address Verification API
Short perl script mail delivery agent
Wrappers around msmtp for use as queueing MTA with extra features
Italian Certified Electronic eMail
Ciphermail email encryption gateway (S/MIME, OpenPGP, PDF encryption)
a simple to manage mta