MSA

MSA

[1] RFC 4356 - Mapping Between the Multimedia Messaging Service (MMS) and Internet Mail ( 版) <http://tools.ietf.org/html/rfc4356#section-1.4>

[2]

   MSA     |Message Submission Agent.  A server that accepts messages
           |from User Agents and processes them, either delivering
           |them locally or relaying to an MTA.  See [Submission].