[Dovecot] Dovecot LDA munging INBOX access times?

[Timo Sirainen]

On Fri, 2007-06-15 at 14:07 -0500, Steven F Siirila wrote:
> > Hmm.  I wonder how much of a timing window is left; this could be a viable
> > option for us.  However, I would like to consider our future options for
> > mailbox formats other than mbox (we will eventually migrate I'm sure).
> 
> For the mbox case (our immediate concern) your patch seems perfect, provided
> that it is performing the read of the access time and the re-setting of the
> access time during the time that the INBOX is locked.  Timo, is this the case?

That's right.

> What we are considering doing is updating our local "mailattrd" to lock
> using the same mechanism Dovecot is before reading the access time:
> 
> 	lock /var/mail/user	(open RDONLY, fcntl SETLKW)
> 	stat /var/mail/user	(to get last access time)
> 	unlock /var/mail/user	(close)
> 
> Unfortunately, it is more overhead.  But it should be 100% accurate.

That should work. Or I guess you saw my other mail already too? That
doesn't require creating the lock, but should be 100% accurate as well.

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