Am 17.04.20 um 03:37 schrieb @lbutlr:
On 15 Apr 2020, at 07:50, Stefan G. Weichinger lists@xunil.at wrote:
So I think about how to get the mailboxes from A to B.
We use one UID afaik:
mail_home = /home/vmail/%d/%u mail_location = maildir:~
I read about dsync and wonder:
- does it make sense in this case to set up replication and let the servers replicate at first while still running on the old server?
I ave done this (dovevot mailers under a email user) and I simply used rsync to copy the mail to the new machine.
Once I had synced, I then synced again, shutdown the mail server, synced on last time, and started the mail server on the new hardware. The last sync only had to catch up a few emails, so all told I was down for a shorter time than a simple reboot.
That said, doing it via replication would have been “better” but in my case wasn’t worth the time it would have taken to setup, test, test, backup all the mail an extra time anyway, and then implement.
thanks for that feedback
Today I will setup the new server and try to enable replication.
I will connect both dovecots to the same instance of mariadb which should let them know about all the existing mailboxes ... and then I will see.
My question around the sieve-scripts is still open ... I assume I will maybe try to replicate a sub-set of the mailboxes, check things ... and then decide how to proceed.