Postfix - Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.
Mailtrap - Email Delivery Platform that delivers just in time. Great for businesses and individuals.
Sendmail - Sendmail is a general purpose internetwork email routing facility that supports many kinds of...
FakeSMTP - FakeSMTP is a Free Fake SMTP Server with GUI for testing emails in applications easily.
Exim - Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
MailCatcher - MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a...