Exim is a mail transport agent (MTA) developed at the University of Cambridge
for use on Unix systems connected to the Internet. It is freely available
under the terms of the GNU General Public Licence. In style it is similar to
Smail 3, but its facilities are more extensive, and in particular it has
options for verifying incoming sender and recipient addresses, for refusing
mail from specified hosts, networks, or senders, and for controlling mail
relaying.

This build of exim has the following non-default features enabled:

TRANSPORT_LMTP          SUPPORT_MAILDIR         SUPPORT_MAILSTORE
SUPPORT_MBX             AUTH_CRAM_MD5           AUTH_PLAINTEXT
AUTH_SPA                SUPPORT_TLS

The following default feature is disabled by default, but may be enabled by
setting the 'exim-build-eximon' option:

EXIM_MONITOR

Homepage:
https://www.exim.org/
