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 :)

Reply via email to