On Mon, 10 May 2004, Peter H. Lemieux wrote: > ... > Received: from UNKNOWN(218.1.160.93), claiming to be "1.2.3.4" > via SMTP by mail.someplace.com, id smtpdZ0ZVgY; Wed May 5 18:51:28 2004 > > where "1.2.3.4" is mail.someplace.com's IP address. These can't be caught > at the SMTP level, ...
Sendmail with MimeDefang catches these (and cases where the external sending host claims to be one of my mail hosts or domains by name, as well as the syntax error of no square brackets surrounding the dotted quad -- a condition which should have the message not even reach SpamAssassin) at the SMTP "level". See an earlier post by me for details. With MimeDefang and Sendmail, if you can come up with a Perl expression for the condition you want to match, you can easily reject messages at various points during the SMTP transaction. -- ---------------------------------------------------------------------- Sylvain Robitaille [EMAIL PROTECTED] Systems analyst / Postmaster Concordia University Instructional & Information Technology Montreal, Quebec, Canada ----------------------------------------------------------------------
