Mark Martinec wrote the following on 12/02/10 19:45: >> I've seen a marked increase in bad header reports which I paid little >> attention to initially but I've just taken some time to look into some >> of these as some of the senders are routers, webcams, etc where >> previously these were not a problem. >> <cut> >> Unless the mail relay is adding the headers (Postfix), which I haven't >> checked yet, I was wondering if others have seen this issue? > > These missing header fields (along with Message-Id when missing) > were probably inserted by your MTA. > >> While I don't have records, this change in behaviour appeared around the >> time I upgraded to amavisd-new-2.6.4-1 on Fedora 10. > > A likely reason for a change is an upgrade of Postfix. > >> From its HISTORY file: > > 20090330 > Cleanup: add (Resent-) From:, Date:, Message-ID: or To: > headers only when clients match $local_header_rewrite_clients. > Specify "always_add_missing_headers = yes" for backwards > compatibility. Adding such headers to remote mail can break > DKIM signatures that cover headers that are not present. > File: cleanup/cleanup_message.c.
Mark Having traced from the source I can see all is as it should be to the externally facing MX's. The sources are missing the reported headers. There was an internal MX, which was running an older version of Postfix, adding the headers. Thanks. Alan ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev _______________________________________________ AMaViS-user mailing list AMaViS-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
