SMTP on port other than 25 through DNS???

[amh]

Not to get into a diatribe about sendmail here, but it IS possible, just not
very practical. It would require there being another mailserver in between,
which collected all email, and configured to send to the final mailer on the
non-standard port. I've done it, and for the same reason (rr.com blocking
port 25), but if you have control of that other mailserver in between
anyway, why bother using the cablemodem machine as a mailserver.

----- Original Message -----
From: "Igmar Palsenberg" <maillist at chello.nl>
To: <woodside20 at my-deja.com>
Cc: <comp-protocols-dns-bind at moderators.isc.org>
Sent: Saturday, January 06, 2001 6:46 AM
Subject: Re: SMTP on port other than 25 through DNS???


>
>
> > Problem is that roadrunner blocks port 25 so I
> > can't get any incoming mail.
>
> Wow, I wish all ISP did this. Would save a great bunch of spam.
>
> > I was wondering if I
> > might be able to alter the MX record in the
> > nameserver to specify an alternative port in
> > addition to my hostname, and then I could have my
> > MTA listening in on that port.
>
> No. 25 is the default port, no way to change that.
>
> > I'm worried that I can't do this, but I'm out of
> > other ideas or alternate high-speed ISP's.  If
> > not, any suggestions on other ways to get around
> > this (roadrunner only blocks port 25, will unblock
> > it for additional $150/month, which is not
> > feasible for me)?  All suggestions and/or pointers
> > appreciated.
> >
> > Thanks so much,
> >
> > Dan
>
>
> Igmar
>
>
>
>