[cobalt-users] mail spoofing (OT)

["alan@" <alan@xxxxxxxxx>]

Hi there,

Sorry, bit off topic here, but I trust you guys and imagine that you may
have had similar problems.

Am I correct in assuming that if somebody uses my domain as a "reply to"
address (or 'from') then there is nothing I can do about it ?

I have been recieving lots of bounced mail from yahoo, which shows my
domain, but in the mail headers, it is not my ip address.

I don't have an open relay for the domain, and pop b4 smtp is on. They are
simply using my domain to spam "from".

Any ideas, I don't want to get on any spam cops database. Actually, are
there any public dbases which show known spammers, so that I may check to se
if my domain is listed.