[Dovecot] "fchown() failed with file" and Operation not permitted with indexes

[Timo Sirainen]

On Wed, 2006-05-03 at 22:59 +0100, Gavin Henry wrote:
> <quote who="Timo Sirainen">
> > On Wed, 2006-05-03 at 21:49 +0100, Gavin Henry wrote:
> >> Dear all,
> >>
> >> Getting lots of these errors in our maillog with the INDEX changed:
> >>
> >> dovecot: IMAP(ghenry): fchown() failed with file
> >> /home/ghenry/Maildir/index/.INBOX/dovecot.index.tmp: Operation not
> >> permitted
> >
> > You've created dovecot-shared file with a group that the user doesn't
> > have permission to use?
> >
> 
> Yeah, it has a group permission for a managers group.

I think the problem is that Dovecot in general doesn't preserve the
groups for mail processes, unless you make userdb return
"system_user=username". If you're using passwd as passdb it should have
been done automatically, but not for other userdbs.

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