> > I need some help. > > Right now we are using greylisting / spamassasin / antivirus and so on, > > but, now spammer are gentting really more "smart": > > if a spammer use a real SMTP bypass the greylist, and if the mail is > well > > formatted it may by-pass also the spamassasin. > > It's quite normal, but the point is, if a large number of email are > send to > > a non existing user these email are processed and only at the end a mail > > form MAILER DEAMON is send for a not existing user... so a lot of mail, > more > > than 2500 in some server a day, are processed... and in some case the > queue > > is really overloaded. > > Hi Andrea > > Yes, we're experiencing this too. I think this phenomenon is known as > 'backscatter'. See: > > http://www.postfix.org/BACKSCATTER_README.html > > and > > http://www.hispalinux.es/~data/postfix/ > > HTH > > Have a great day! > > Stuart >
It's not clear to me if he talking about backscatter. But if he is, there is a vbounce plugin for SA. Regards, Leon Kolchinsky _______________________________________________ This mailing list is hosted and supported by bit-heads GmbH | http://www.bit-heads.ch _______________________________________________ Web-cyradm mailing list [email protected] http://www.web-cyradm.org/mailman/listinfo/web-cyradm
