[Dovecot] Dovecot LDA issues

[Timo Sirainen]

On Fri, 2007-03-23 at 13:08 -0500, Steven F Siirila wrote:
> We've seen two issues come up with Dovecot LDA, both of which have
> caused us problems:
> 
>  1) If the user's home directory does not exist, or is not owned by them,
>     deliver fails and causes the mail message to bounce back to the
>     originator.  In our environment this happens when our user is moved
>     to another server (where we move their files, but for up to 24 hours
>     afterwards, continue to re-mail their /var/mail INBOX).  This no
>     longer works because the user has no home directory, causing deliver
>     to fail with "Permission denied" when attempting to create their
>     home directory for the purposes of creating INBOX index files.

Happened with mbox, but not with maildir. Changed to return temporary
failure: http://dovecot.org/list/dovecot-cvs/2007-March/008357.html

>  2) If the user is over quota (in their home directory), deliver fails
>     with a temporary error, causing requeues until the user is back
>     under quota (which in our environment could be a long time, days).
>     Since we've never had quotas on the user's INBOX (in /var/mail),
>     this is a problem for us.
..
> I'd propose for both of these cases that deliver issue WARNING messages
> to its logs, and simply not create index files for the INBOX.  If the
> INBOX index files already exist, and the user is over quota in /home,
> neither deliver nor any other Dovecot process should attempt to update
> them, and instead issue WARNING messages.  This allows the e-mail to be
> delivered instead of requeued, or worse yet, rejected.  Index files are
> supposed to make things perform better, not worse, in ALL cases.  :)

For the 1) case.. No. At least not anytime soon. The mail root directory
is used for other things than index files as well, and I don't want to
add lots of special case checks to make it work in a INBOX-only
environment.

For 2) case, it should work like that since rc27. What version are you
using?
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