Hector Santos <hsantos(_at_)santronics(_dot_)com> writes:
2) What about outgoing?
Are MX records considered the solution?
Using GMAIL as an example, I think it only allows IMAP for receiving and
SUBMIT (port 587) for sending. So wouldn't a SRV record be useful for
the case where SMTP is used for outgoing when the incoming uses IMAP?
As a site where, for various load-balancing, administrative, and
configuration complexity reasons, our outgoing mail servers for clients
are entirely distinct from the inbound servers holding the MX records of
the domain, I would love to see a SRV record for clients to locate
outbound SMTP servers.
--
Russ Allbery (rra(_at_)stanford(_dot_)edu)
<http://www.eyrie.org/~eagle/>