Gomes, Rich: > Does anyone have a good way of reporting on this? > I see a great deal in the maillog with either an incorrect format (no @ > symbol) or just completely blank ( message-id=<>).
According to RFC,the Message-ID header is optional, and therefore, email without Message-ID MUST NOT BE BLOCKED. > We would like to be able to do the following: > > Have a WARN message written to the log so we can report and investigate. Sloppy PCRE pattern for header_checks: IF /^message-id:/ /^message-id:\s*<\S+@\S+>/ DUNNO /./ WARN malformed Message-ID header ENDIF The warning logs the sender, recipient, etc. warning: malformed Message-ID header; from=<xxx> to=<yyy> proto=<zzz> ... > I have tried this, but it did not work: > Blocking messages with an empty message-id in postfix - Server > Fault<https://serverfault.com/questions/629923/blocking-messages-with-an-empty-message-id-in-postfix> There is no pattern to match a header that does not exist. Wietse
