On Thu, 2007-06-14 at 10:57 +0200, Steffen Kaiser wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Tue, 12 Jun 2007, Timo Sirainen wrote: > > Hello, > > > + deliver: Added -e parameter to write rejection error to stderr and > > exit with EX_NOPERM instead of sending the rejection by executing > > sendmail. > > I'm still curious, what permanent problems a MDA may encounter? > > http://dovecot.org/list/dovecot/2007-May/022503.html > > When the MTA is sure, the recipient is local, there must be some sort of > configuration error and, hence, the problem is temporarily and should be > fixed rather soon than have the mail bounced. > > Does somebody disable an (valid) user at MDA-stage?
If that happens deliver exits with EX_NOUSER. There is always at least a
race condition between MTA checking the user and MDA checking it.
> I suggest to tempfail Deliver for all problems.
This is done for v1.1:
if (error != MAIL_ERROR_NOSPACE ||
getenv("QUOTA_FULL_TEMPFAIL") != NULL) {
/* Saving to INBOX should always work unless
we're over quota. If it didn't, it's probably a
configuration problem. */
return EX_TEMPFAIL;
}
For v1.0.x it would be possible to just check the returned string for
various versions of out of quota/disk space, but that's pretty ugly..
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