The check against SMTP was recently added to the wiki at: http://www.mimedefang.org/kwiki/index.cgi?RelayCheckAddresses
I also check for bad HELOs which probably strips most if not all of those types of relays out (using rfc defined "non-routable" address space... so I do not know what repercusions you might have (I.E. what broken server software is out there... like I recently found out you can only check against SMTP for exchange servers 2003+, guess M$ didn't think it important....) by blocking these outright.. but it would be fairly trivial to add a check in filter_relay to catch and reject those. Jim On Fri, 18 Mar 2005 12:54:24 -0500, Albert Croft wrote > I was > wondering if there might be a suggested way to check that the MX had > not been set to to a host that was unreachable because of such > trickery or misconfiguration. Also, if anyone could refer me to > additional information on the md_check_against_smpt_server() > function, that would also be appreciated. -- EsisNet.com Webmail Client _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang

