Re: [Dovecot] integration of old mails into new dovecot Maildir

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

On Mon, 14 Apr 2014, K. C. Mohan - Personal wrote:

1.  how are the messages storred on the old server, which storage

   backend do you use, maybe Maildir?

Yes, Maildir. Dovecot version is 2.1.7.

2. the storage backend on the new server?

                Maildir. Dovecot Version 2.2.9.  Mysql virtual users

   authentication. Plain login

As both are Maildir from Dovecot, you can copy all the Maildir hierarchie 1:1 to the new server. Dovecot upgrades them automatically most of the time. I did so from Dovecot v1.x to v2.2 with almost no problem.

To keep the UIDs for POP3, ensure the same:

pop3_uidl_format = %08Xu%08Xv

is used on the new server.

If you already got new messages on the new server, you can think about:

a) migration, e.g. as Jiri pointed out

b) merge both Maildirs, but remove all "new" control files dovecot*, keep only the old ones. That way the new messages will be added to the old store by getting new UIDs.

Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)

iQEVAwUBU0zj8XD1/YhP6VMHAQKaXAgAqAXaBTDNvDWh3Yl56UrA5InEJ+E5UfiX l9qwWTDrjneGxN6CHNmA8+VRACcZDa9Ha2oEnbfjE4ZosHK29cGzr846bwGKHv0T Jmo2BMs/yz0psSXXf4p/46rXckQaK5HAvJTozdoRHK84OGjbTfjI2QCE/xdnrWXb vH/wsFw5W7/hi+sSAXsFBmGkzm4Opig3V+aSQFSswlKgzUAB2H3nHlz18XObNPTK GGjB2YV6OM0x8F87E/wgapxv4jHd48kArvDWabv9FygDQziVSggKFeQnrjgGuVZM wlL7m1YgC1x0fGXPnYpO0gg5o0wD9X6nCStmeKKigmGwhRTvAgWc/w== =QKGI -----END PGP SIGNATURE-----