madritel:
> My server was running OK for 2
> years, but now some spammers are using my relay to send e-mails. I
> don't know where is the problem. I've qmail-auth patch to check smtp
> password. HELP ME , please!!!!!!!!!

Did you rtfm? Did you google? How should anyone help you without knowing
your configuration details?
Just a guess: Have a look at your qmail-smtpd/run-script and check
whether you use your fqdn after /var/qmail/bin/qmail-smtpd call.
HTH,
Juergen