Hello,
I'm running a postfix mail server on a fresh IP address that has some
bad reputation from the previous owner. So I had a lot of bounces in the
last days which I had to clean up.
One customer complained about a bounce that returned after few days (all
other returned immediately), so I
Hello,
Looks like your IP address is blocked by Cloudmark
I'm totally aware of that. My issue is not that I'm blocked but that the
message got deferred instead of bounced (although the remote sent a 550).
Best regards,
Michael.
Hello Wietse,
thank you for the response. I tried to find the correct section in RFCs
that describes this but I did not find the place where it defines that a
EHLO cannot be answered with a 550.
Can you point me to the right RFC section?
Best regards,
Michael.
Michael Wyraz:
Hello
Hello,
thank you for the Feedback. I'll contact the receiver's postmaster and
tell them the RFC violation.
To work around this you can set an smtp_reply_filter:
/etc/postfix/main.cf:
smtp_reply_filter = pcre:/etc/postfix/smtp_reply_filter.pcre
/etc/postfix/smtp_reply_filter.pcre
/
