[Dovecot] Dsync ignores INBOX when converting from mbox to maildir

[Henrique Fernandes]

Thanks for the explanation.

[]'sf.rique


On Tue, Aug 3, 2010 at 11:57 AM, Timo Sirainen <tss at iki.fi> wrote:

> On Tue, 2010-08-03 at 11:20 -0300, Henrique Fernandes wrote:
>
> > Like
> > location1 is production.
> >
> > location1 has 1000 emails.
> >
> > I mirror it to location2
> >
> > Now the owner of location1 deletes some emails! and have now 989
> >
> > If i do mirroging again, it has to choose if it will copy back from
> > location2 to location1 or erase mails in location2
> >
> > How does it decide with one its going to do ?
>
> If mails are deleted in location1, mirroring causes the mails to be
> deleted from location2 as well. If new mails are added to location2,
> they are copied to location1. This is pretty easy to handle because in
> IMAP the UID numbers always grow, so if you see UIDs 1,5,10 in location1
> and UIDs 1,10 in location2, you'll know that in location1 UID 5 was
> deleted. UIDs at the end of the mailbox are then handled specially by
> looking up from index files if they were actually deleted. And there is
> some conflict checking also by looking message GUIDs.
>
> http://wiki2.dovecot.org/Design/Dsync has also some text about how the
> syncing works internally. I should update it though..
>
>