disappearing email?

[Rick Duvall]

I am running my SMTP server on both ports 25 and 1025.  The idea here is
that we have a number of off site workers on a DSL account in which the ISP
won't allow any port 25 connections from the inside to the outside of their
network unless they are incoming SMTP from outside of their network.  These
offsite workers have to use port 1025 to send email through our mail server
to avoid the port blocking rules that the ISP has implemented.

Sincerely,

Rick Duvall
----- Original Message ----- 
From: "Chris Howells" <lists at chrishowells.co.uk>
To: <freebsd-questions at Freebsd.org>
Sent: Wednesday, October 29, 2003 10:44 AM
Subject: Re: disappearing email?


> > I seem to have found the answer to my own question. Apparently, when
> > anyone
> > is connected to AOL, AOL overrides any SMTP settings the user has. Below
> > are
> > headers from a client of mine that was sent to me using a pop account on
> > our
> > server, with the SMTP in OE set to our server:
>
> In the UK, The Planet, who area  major virtual ISP for various household
> ISPs do a similar trick, basically any traffic on port 25 automatically
> gets proxied (don't know if that's the exact terminology, but that's the
> effect) through their mail server -- I guess they claim that it helps them
> track spam or whatever.
>
> You could either run your smtp daemon on a different port (nasty) or use
> ssh port forwarding (also nasty).
>
> Cheers
> Chris Howells
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