[Dovecot] "leave mail on server" workaround

[Kirill Miazine]

* Frank Cusack [2010-01-10 12:20]:
> On January 10, 2010 1:34:25 AM +0100 Kirill Miazine <km at krot.org> wrote:
> > What would be the best way to disallow them using such approach. That
> > is, what is the best way to force deletion of messages that have been
> > RETRieved in a POP session at the end of that POP session?
> >
> > RETRieved messages will be marked as \Seen, but since users might also
> > use an IMAP client (e.g. webmail), it'll be dangerous to simply delete
> > all \Seen messages in user's mailbox.
> 
> These two statements seem to be in conflict.  If your users might also
> use an IMAP client, why would you delete retrieved messages at all?

To give them an incentive to use only IMAP ;)

Actually this is a wish of one customer, so I'm trying to figure out how
much pain it will be do support such scenario.

-- Kirill