rche@??? (rche@???) [Wednesday, August 21, 2002 1:00 PM]:
> Thanks for your reply. I found that problem was that the incoming email
> with blank header. The log file looks like this:
> 2002-08-18 02:13:13 17g4KF-0002gP-00 <= <> H=(mail.insitec.com.au)
> [210.9.240.146] P=esmtp S=45409 id=TrBoe2U8Q0000004c@???
> 2002-08-18 02:13:13 17g4KF-0002gP-00 => arhodes@???
> <arhodes@???> R=lookuphost T=remote_smtp H=dack1.diag.co.nz
> [10.42.15.165]
> 2002-08-18 02:13:13 17g4KF-0002gP-00 Completed
> I can see numbers of such emails comming with blank header. Most of them
> (almost all) are junk mail. So another question for me is how can I stop
> them
You are not supposed to try to stop it by blocking MAIL FROM:<>
MAIL FROM:<> is the rfc mandated address for DSN / NDN ...
Set up Spamassasin, use DNSBLs, whatever.
-srs