10 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Filter some postm...| From | Sent On | Attachments |
|---|---|---|
| Antonio Di Monaco | Feb 21, 2007 1:42 pm | |
| C. J. Meidlinger | Feb 22, 2007 4:24 am | |
| Antonio Di Monaco | Feb 22, 2007 5:44 am | |
| C. J. Meidlinger | Feb 22, 2007 6:28 am | |
| Gordon Messmer | Feb 22, 2007 7:01 am | |
| Antonio Di Monaco | Feb 22, 2007 7:17 am | |
| Marcin Semeniuk | Feb 22, 2007 7:27 am | |
| Otto Solares | Feb 22, 2007 8:18 am | |
| Gordon Messmer | Feb 22, 2007 9:09 am | |
| Alessandro Vesely | Feb 22, 2007 11:22 pm |
| Subject: | Re: [courier-users] Filter some postmaster messages | |
|---|---|---|
| From: | Gordon Messmer (yiny...@eburg.com) | |
| Date: | Feb 22, 2007 9:09:01 am | |
| List: | net.sourceforge.lists.courier-users | |
Antonio Di Monaco wrote:
To save privacy, I put KNOWN_USER@CORRECT_DOMAIN as a valid email address, and UNKNOWN_USER@CORRECT_DOMAIN as a non-existent email address, even if the domain is correct and is equal in both addresses.
Do you really want to make it difficult for people to help you?
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UNDELIVERABLE MAIL
Your message to the following recipients cannot be delivered:
<UNKNOWN_USER@CORRECT_DOMAIN>: <<< 550 User unknown.
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Of the three common possibilities that I mentioned before, that looks an awful lot like the sort of thing that you'd see from a backup MX that doesn't check users. Is it?
If so, I recommend dropping the backup MX. They're not useful, and they cause this exact problem, among others.
If you insist on a backup mx, set up your domain as a "hosteddomain" and write a script that builds a list of all of the valid recipients of that domain and converts it into an alias file, directing mail to the primary MX.
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UNDELIVERABLE MAIL
Your message to the following recipients cannot be delivered:
<KNOWN_USER@CORRECT_DOMAIN>: <<< Mail loop - already have my Delivered-To: header.
---------------------------------------------------------------------------
That's an entirely different issue, and as Marcin pointed out, more difficult to solve. I see those from time to time, but they're pretty rare. I expect that the former messages make up the bulk of the deliveries to your postmaster account.