RE: Possibly OT: Postfix stopped working (firestarter problem???)
>
> I have this strange problem that Postfix stopped working all of a
> sudden. Actually, it does work locally but remotely, both sending and
> receiving don't work. And this seems to (or could) be more of
> a problem
> with my firewall (firestarter) than that of postfix. Because even as I
> have allowed connections to SMTP port (25), the internet port scanner
> programs see that port in stealth mode. And I don't understand how my
> firewall would stop postfix from sending email (since its now
> blocked).
It could be the case that your ISP all of a sudden decided it is a very bad
idea to have a mailserver, and thus decided to block all incoming traffic to
port 25, and all outgoing traffic to port 25. This would at least explain
why internet port scanners see port 25 in stealth mode. It appears this is
kind of common practice since various worms and viruses contain their own
mailserver.
HTH,
Dan
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