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