On Wed, 2012-02-08 at 10:03 +0100, Juergen Kleff wrote: > Do you use greylisting?
Yes. > Do the mails indeed come from real mailservers or do they come from > compromised dial-in computers? Real mail servers > Feeding the mails to spamassassin's bayes database could perhaps help, in > spite of the random words. But you should keep an eye on it for the risk of > false positives. > > Everything in the headers is different? Nothing common in them? As far as I could tell, nothing was common. They were incredibly minimal. The X-Mailer field was full of random (real mail client) values. -- Richard _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
