Hi,
> On 17 July 2018 at 22:01 Shawn Heisey <elyog...@elyograg.org> wrote: > > > I have a machine with my mail service on it running Debian Squeeze. The > version of dovecot on that server is 1.2.15. > > I'm building a new server with Ubuntu 18.04 (started with 16.04, > upgraded in place), where the dovecot version is 2.2.33. I plan to > migrate all my services to this new machine. > > The virtual mailboxes are on disk in maildir format, with accounts in a > mysql database managed by postfixadmin. When I copy them over to the > new machine, would there be any value to excluding the files that > dovecot creates, and letting the new version recreate them? In one > mailbox here are some of the files I am considering excluding: > you can probably ignore these. > dovecot.index > dovecot.index.cache > dovecot.index.log > dovecot.index.thread do not ignore these > dovecot-keywords > dovecot-uidlist > dovecot-uidvalidity > dovecot-uidvalidity.5876ca77 > > There are other files under consideration, like maildirsize and > maildirfolder. One that I would be sure to *not* remove is subscriptions. > > If there are recommendations about dovecot files in a maildir that > should not be removed during a migration, please let me know. > > I'm aware that rebuilding this information could be slow. My own > personal mailbox on the system is over 8GB in size and has well over > nine hundred thousand files in it. > You can just rsync everything over to new system. > Thanks, > Shawn
