> Hello, > > We receive messages from a system that sends e-mails with a blank > Reply-To: and CC: lines, and (I think) mimedefang is rejecting them. > > This is what I see logged on my system: > > Apr 10 08:04:57 mx sendmail[1400]: q3AF4uDC001400: collect: premature EOM: > unexpected close
> And this is what our upstream mail handler gets: > > (hostXXXX.thermeon.com[1.2.3.4] said: 554 5.7.1 This message has been > blocked because the return email domain is invalid.(domain name has > invalid syntax) (in reply to end of DATA command)) This looks like a cisco router/firewall/asa/whatever intercepting smtp traffic and doing own 'fixups'. Switch it off. http://blogs.oucs.ox.ac.uk/networks/2009/11/26/cisco-firewall-smtp-fixup-considered-harmful/ http://www.binarywar.com/2009/11/cisco-pixasa-causes-smtp-banner-corruption/ MJ _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
