Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
Postfix - Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.
Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
Sendmail - Sendmail is a general purpose internetwork email routing facility that supports many kinds of...
SoftMaker Office - SoftMaker Office is one of the most powerful and reliable office suite that is fully compatible with the MS Office Suite.
Exim - Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.