emanuil tolev weazttewwqktgmailcom hello experiencing following problem bots connect mi port 25 send spam mi 2 domains relaying mail course disabled however bots fail instead try successfully send spams internal email addresses eg domains propertyxpresscom sgradacom bots try guess mailboxes like xvrrbapropertyxpresscom sales 123456 problem setup 2 catchall mailboxes 2 domains bots identify internal users eg amwmuficurpropertyxpresscom accepted ok smtp server thus messages rejected get scanned amavisdclamdspamassassin setup eat servers limited 512mb ram fill roots mailbox virus alerts already 100mb would way limit outgoing smtp operations 127001 web scripts squirrelmail authorized smtpssl users tried smtpd_client_restrictionspermit_mynetworks permit_sasl_authenticated disastrous results spammers also smtp servers able connect deliver incoming mail greetings thanks attention paid message emanuil tolev thu 07 aug 2008 064638 0200 controlling outgoing smtp operations access