On Thu, 2006-03-16 at 14:52 -0500, JimD wrote:
> On Thu, 16 Mar 2006 11:12:28 -0800
> "Kevin O'Gorman" <[EMAIL PROTECTED]> wrote:
>
> > I get a lot of bounce messages from Postfix relating to emails
> > that are not actually from me, and the mail q shows lots of
> > stuff I don't recognize.
> >
> > I'd like to know how to interpret this, and if it is called-for,
> > to secure this daemon a bit more.
>
> Try this link:
> http://www.spamhelp.org/shopenrelay/
>
> Just put in the IP and port and click the button.
which automatically notifies a list of spammers that they can use your
mail server... no not really ;)
Do you have a firewall? Should your box be accessible from outside?
You could lock it down so _no_one_ outside can access it, or you could
restrict it to certain ip's...
But I also get a few bounce messages "from me" about emails I never
wrote - once your email address is out there, spammers use it as their
from address, even if they're not using your mail server for a relay.
sucks.
Yes, I expose this machine's port 25 on purpose. So I would like to make
it a good netizen.
I had done this with sendmail in previous distros, but am a neophyte with
Postfix. Right now I want to verify if I have (or am) a problem.
++ kevin
Kevin O'Gorman, PhD
