On Thu, March 5, 2009 14:31, Adi Nugroho wrote: > I found that a lot of spam is using recipient email address as the > sender. (from a...@internux.co.id to a...@internux.co.id, or from > i...@apache.org to i...@apache.org).
all this happends on domains that have no spf and or testing spf in mta, when spf is used properly this will soon go away > Since if we mail to our self, usually we have very low score, I hope > it is save to give a BIG score (probably 2 or 3). you know where you send from (ip-wise, smtp auth) there should be no problem to make a wall on this > Is there a hint how to make this custom rule set? enable spf / dkim, testing spf / dkim, problem solved http://www.openspf.org/ http://www.dkim.org/ -- http://localhost/ 100% uptime and 100% mirrored :)