There are several types of mail programs. The generic names are:
-
MTA -- Mail Transport Agent. A program which handles the transfer of mail
over a TCP/IP link.
-
MDA -- Mail Delivery Agent. A program which handles the transfer of mail
between an MTA and a "mail box".
-
MUA -- Mail User Agent. A "mail reader". A program which a user uses to read and write mail
and to initiate the sending of mail.
There are several common mail programs which may contain serve several of the
functions mentioned previously.
-
sendmail -- The most widely used program. Extremely powerful and flexible.
Very difficult configuration unless one uses the m4 program and the set of
pre-defined m4 files that are provided for configuation for 95% of uses.
This is mostly an MTA, but it can use or be used by other types of programs.
-
smail -- Does much of what sendmail does. Tries to be easier to use.
-
elm -- An MUA.
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pine -- An MUA from the University of Washington.
-
See more below.
Misc:
Mail Readers, Mail Programs:
Mailing Lists:
Mailing List Archives:
POP, POP3, etc:
IMAP:
Last Modified 19-Apr-1999
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