Migrating users from a 2.0.19 to a 2.2.24 installation

[Steffen Kaiser]

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On Thu, 20 Oct 2016, Gerben Wierda wrote:

> I am currently still running an older dovecot (2.0.19apple1 on Mac OS X 
> 10.8.5) and I want to migrate my users to a new server (macOS 10.12 with 
> Server 5, which contains dovecot 2.2.24 (a82c823)).
>
> Basically, I want to create a new server installation on the new server 
> so I don't bring any junk over (new user accounts, with the same uid/gid 
> (still need to figure that one out), but after I have done that I need 
> to move the data over from the old instalation to the new.
>
> Has anything changed in the formats between 2.0 and 2.2 that will stop me from doing this?

The index files etc.pp. will be updated on the fly. You should check if 
your mailbox storage format is supported, still.

Check out http://wiki2.dovecot.org/Upgrading

If have moved Maildir with Sieve with no trouble.

- -- 
Steffen Kaiser
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