Le 26 janv. 2015 à 12:03, Joseph Tam <jtam.home@gmail.com> a écrit :

St?phane Cottin writes:

...

...

You're stilling going to lose contents. If dspam fails, the mail is dumped, the LDA returns exit code 75, and the MTA will probably issue a bounce Email to the sender.

from dovecot-lda man page :

75 A temporary failure. This is returned for almost all failures. See the log file for details. (EX_TEMPFAIL)

The mta keep the mail and retry delivery later, which is what I need.

Ah, my mistake. But ...

...

I don't want to deliver email on dspam error, I prefer TEMPFAIL and future retries, so I have a chance to fix the issue later without loosing or deliver unprocessed mails

... you only have a limited time to fix it. Depending on the sending MTA's retry schedule, you might have only a few days or less to to deal with it before the sending MTA stops trying.

We hopfully are notified whitin a few minutes when something's wrong in mail delivery, having a few days to fix is far more than needed.

If it's important not to lose mail, then the deliver on failure strategy would be more appropriate. You can even copy the input message that caused dpam to crash to an inspection queue for later perusal.

We do not have dspam crashes caused per email contents, they always are system( disk errors, oom kill,…) , clamav or database issues. Anyways, having a copy of the input message somewhere, whatever it's unrelated to the error is a good advice, we'll think about it.

Joseph Tam <jtam.home@gmail.com>