mail user agent

messaging (MUA) The program that allows the user to compose

and read electronic mail messages. The MUA provides the

interface between the user and the Message Transfer Agent.

Outgoing mail is eventually handed over to an MTA for delivery

while the incoming messages are picked up from where the MTA

left it (although MUA's running on single-user machines may

pick up mail using POP).

Popular MUAs for Unix include elm, mush, pine, and

RMAIL.

FAQ.

(1996-03-21)