Hi Graeme > Given that Exim logs what the far end gives back to it, I suspect > you're looking at the Postfix end.
Yes, that sounds reasonable... So I started digging in our MIMEDefang code and added more debug information to see what might go wrong. If we somehow silently return 'CONTINUE' from MIMEDefang and then later or REJECT that email, so that Postfix answers 200 OK but logs 452 tempfail. Then I made the obvious test with telnet to the SMTP port to see what postfix returns... $ telnet rrmx.imp.ch smtp Trying 2001:4060:1:1001::12:5... Connected to rrmx.imp.ch (2001:4060:1:1001::12:5). Escape character is '^]'. 220-obelix.imp.ch ESMTP Postfix 220 obelix.imp.ch ESMTP Postfix ehlo imp.ch 250-obelix.imp.ch 250-PIPELINING 250-SIZE 26214400 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN mail from:<bp@****.ch> 250 2.1.0 Ok rcpt to:<woody@****.ch> 250 2.1.5 Ok rcpt to:<test@****.ch> 452 4.5.3 Incompatible Antispam Action, please resend this recipient separately And that is exactly what I expected and what see in our logs... So Postfix is NOT accepting the second recipient with 200 OK and logging it has been tempfailed. So now I am more confident this has to be an EXIM bug. What I suppose is happening there is: One recipient was accepted. From the Log the ISP using EXIM sent me. I see the return code is: 250 2.0.0 Ok: queued as 16EC1C100A Yes, or course, that email got queued under that ID on our side. The FIRST recipient was valid. So does EXIM falsely apply that 200 OK also to subsequent tempfailed recipients in the same SMTP connection? We have a voicemail server running EXIM. Going to try to reproduce the issue there. -- Mit freundlichen Grüssen -Benoît Panizzon- @ HomeOffice und normal erreichbar -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________ _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
