Re: [courier-users] Problem/Error 456 (random?)

Mon, 25 Jun 2007 18:49:45 -0700 

[EMAIL PROTECTED] writes:


Sam Varshavchik wrote :

[EMAIL PROTECTED] writes:


Digging in both syslogs I find :
Jun 25 17:39:59 miaou courieresmtp: id=000086A8.467FD4F8.0000501D,from=<[EMAIL PROTECTED]>,addr=<[EMAIL PROTECTED]>: Connection timed out Jun 25 17:39:59 miaou courieresmtp: id=000086A8.467FD4F8.0000501D,from=<[EMAIL PROTECTED]>,addr=<[EMAIL PROTECTED]>,status: deferred
Jun 25 06:58:36 omallet courieresmtp: id=00111F87.467BCC6C.00007332,from=<[EMAIL PROTECTED]>,addr=<[EMAIL PROTECTED]>: Connection timed out Jun 25 06:58:36 omallet courieresmtp: id=00111F87.467BCC6C.00007332,from=<[EMAIL PROTECTED]>,addr=<[EMAIL PROTECTED]>,status: deferred
Correct. A 456 error gets reported only after an earlier delivery attempt to the recipient fails. 

Do you mean I should be searching for a previous error ? Can you


Correct.


direct me to the proper log files ? Or do I have to first activate
some diagnose switch somewhere ?
The same log file as above. Search for an earlier message to the same recipient. 


 > Then, Courier will reject all further
deliveries to the same recipient with either a 456 or a 556, dependening on the circumstances, for some period of time. 

This explains some of the delays I am experiencing (mail arriving between
a few hours and several days after being first submitted).

But that would mean the "link" between the two servers is working for some
time and then failing for some time (time out then error 456) and working
again (some mails arrive with a delay) etc. What could explain such a
behaviour ?


You will need to look in your mail logs, for the answer.


So this looks like a smtp problem but the link between omallet and miaou
*is* also smtp. And I don't have network errors.


Well, it is a network problem. The 456 is just the end result.


And why does the catchall (and omallet local posts to cat) work perfectly,
without delay, all the time ?


Only your mail logs will have an answer.

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