Re: 550 after HELO
Philipp Ewald <[email protected]>
| Newsgroups | gmane.mail.imap.courier.general |
|---|---|
| Message-ID | <[email protected]> |
> I would expect the return code of 1 from here resulting in a call to connection_closed(), that logs "Connection unexpectedly closed". How can I analyse this? there is no more information in the queue files ether Am 14.02.24 um 04:07 schrieb Sam Varshavchik: > Philipp Ewald writes: > >> Hello, >> >> I'm attempting to understand why we're not seeing any error messages >> in our Courier mail log, despite knowing we're listed on a blacklist. >> We've noticed there are no errors, which seems to be linked to the >> receiving server not accepting the HELO command. > > Well, what does show up in the logs? > >> After issuing "HELO," our connection gets rejected. According to RFC >> 2821 4.1.4, this shouldn't occur: >> >> "If the EHLO command is not acceptable to the SMTP server, failure >> replies of 501, 500, or 502 MUST be returned as appropriate. The SMTP >> server MUST remain in the same state after transmitting these replies >> as it was before receiving the EHLO." >> >> It was mentioned to me that the receiving server uses Exim, which >> should correctly handle this situation. >> >> Does anyone have insights into what might be happening here? > > I expect Courier to handle that, and bounce the message normally. > Courier doesn't care what the entire error code is. Only the first > digit matters. If it's a 5, it's a hard error and it causes a bounce. > > > > > > _______________________________________________ > courier-users mailing list > [email protected] > Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users