On Tue, 30 Dec 2003 11:31:29 -0800 Greg Webster <[EMAIL PROTECTED]> wrote:
> Hey folks, > > Not 100% a spamassassin issue, but I've got a ton of spammers trying any > address they possibly can on my domain. Postfix responds to each one > with a 'reject: unknown user', but of course spammers don't use their > own address and my mail queue gets insanely full (not quite to the point > of a denial-of-service, but close). Does anyone know how to tell Postfix > not to respond to emails sent to users that don't exist? If you're being hit by a dictionary attack from a limited set of source addresses, you can adjust your firewall rules or tune Postfix's error limits (see http://www.postfix.org/rate.html especially smtpd_error_sleep_time, smtpd_soft_error_limit, and smtpd_hard_error_limit) Also, as suggested before, try adjusting your local_recipient_maps and virtual maps to specify only real users. You'll probably get better advice by digging through the Postfix users mailing list archives. hth, -- Bob ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click _______________________________________________ Spamassassin-talk mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/spamassassin-talk
