Wietse Venema: > David B?rgin: >> I?m running a milter that may perform rejection (SMFIS_REJECT) at the >> milter HELO stage. This condition appears in the system log as follows: >> >> Jan 04 13:50:07 mail postfix/smtpd[149922]: connect from >> unknown[156.0.64.217] >> Jan 04 13:50:07 mail spf-milter[147333]: mail.mydomain.org (helo): fail >> Jan 04 13:50:07 mail spf-milter[147333]: rejected message from sender >> "mail.mydomain.org" >> Jan 04 13:50:07 mail postfix/smtpd[149922]: NOQUEUE: milter-reject: HELO >> from unknown[156.0.64.217]: 550 5.7.23 SPF validation failed; proto=SMTP >> helo=<mail.mydomain.org> > > The remote SMTP client sent EHLO (or HELO). The Milter rejected the > command with "550 5.7.23 SPF...". Postfix logged the response and > replied to the remote SMTP client. > >> Jan 04 13:50:07 mail postfix/smtpd[149922]: NOQUEUE: milter-reject: MAIL >> from unknown[156.0.64.217]: 550 5.7.23 SPF validation failed; from=<> >> proto=SMTP helo=<mail.mydomain.org> > > The remote SMTP client sent MAIL FROM. Postfix reused the last > Milter "reject", logged the response, and replied to the remote > SMTP client. > > So the real question is "Why did the client not disconnect after > receiving a 550 EHLO reponse?". Servers aren't supposed to disconnect > after replying with 550.
I see – thank you! (Saw your answer only after posting my follow-up.)
