Giovanni,
It depends whether or not the "spam" is actually coming from(or through)
your server. If someone is actually relaying through your server, you can
stop this through your /var/qmail/control/rcpthosts file(make sure the file
exists, and contains only the domains you receive mail for.) and your
/etc/tcp.smtp file(see man. pages) assuming you're running ucspi-tcp. For
further filtering, you may check out rbl-smtpd.
On the other hand, if the mail is not coming through your server and the
headers have been forged(often the case), there's nothing you can really do.
Someone is merely using your domain to cover their actions.
Regards,
Charles Werbick
The Wirehouse
I received a lot of bounce messages from man sites about a user who
doesn't exits on my site. I suppose someone use an address with my domain
to send mass-mailing and spam. There is a way to prevent this kind of
problem? or the only way is to filter the incoming messages (bounce from
other site)?
thanks anyone can help me.
Giovanni:)
