From: Mikael Bak (no email)
Date: Wed Nov 25 2009 - 09:30:49 EST
Stan Hoeppner wrote:
> Why bother? This is an ISP scenario, correct? The 587 command set is
> standard SMTP right? Just iptables (verb) TCP 25 to TCP 587 for any IP
> ranges within the ISP's MUA customer range. This is assuming said
> customers already have to submit auth over TCP 25 to relay mail. Simple
> solution. Done.
> Or, have I missed something?
Submission on port 587 implies STARTTLS (I think). In that case perhaps
stunnel magic is needed too.