SMTP on port other than 25 through DNS???

[dreamwvr]

port 25 is pretty much required to sendmail or get mail from somewhere else

..
you can add a relay_allow or simular depending on your mail server..
but you need to allow most to connect to smtp otherwise they can't
send you mail.. usually what people do is set explicitly those that can
send mail from the mail server.. and then allow everyone but the
blacklisted
to sendmail to the system.. Best Regards -dreamwvr at dreamwvr.com
Igmar Palsenberg wrote:

> > I though incoming mail was on port 110 (POP3) or IMAP (not sure which
> > port) SMTP on port 25 is for sending mail
>
> Nope. STMP servers use 25 to receive and send mail. POP3 and IMAP have
> nothing to do with SMTP.
>
> > I don't know if it's a DNS issue or not; a mail server is a mail
> > server, just configure it to listen on a different port and configure
> > your mail client to do the same. (I think....I could be wrong, though,
> > anyone can correct me if I am!!)
>
> Than he can't receive mail. And sending also goes wrong if the receiver
> checks the source port.
>
>         Igmar