Hello, i know about the patch. This patch only helps, if qmail is used as server. I use qmail as relay and virus-protection. The unwonted mails came from our own Exchange-Server. Because he wants to tell the (not existing) sender about a not existing emailadress. CU Robert -----Ursprungliche Nachricht----- Von: Theo v. Werkhoven [mailto:twe-suse.sec@ferrets4me.xs4all.nl] Gesendet: Donnerstag, 1. Juli 2004 23:18 An: suse-security@suse.com Betreff: Re: [suse-security] Filter out bad emails On Thu, 01 Jul 2004, Rasp, made the net somewhat safer by saying:

Hello,

i use qmail with spamassassin and qmail-scanner. As you all know, most of the spamers generate emailadresse by them mself and try to deliver ther sh** to the "new recepient".

The LINUX-Box is only our relay. In the back is a Exchange-Server working. The EX-Server trys to answers to the non existent mailadress of the spammer. Spamassassin has already markted this mails as spam. How can i use MAILDROP (or someting else) to kill this mails.

Qmail can be patched to reject unknown recipients. Postfix or Sendmail or Exim don't need patching, and do this of-the-shelve. Theo -- Theo v. Werkhoven Registered Linux user# 99872 http://counter.li.org ICBM 52 13 27N , 4 29 45E. + ICQ: 277217131 SUSE 9.1 + Jabber: gurp@nedlinux.nl Kernel k_athlon-2.6.4 + MSN: twe-msn@ferrets4me.xs4all.nl See headers for PGP/GPG info. +