[Dovecot] Performance-Tuning

[Timo Sirainen]

On 8.11.2011, at 16.16, Ralf Hildebrandt wrote:

> * Morten Stevens <mstevens at imt-systems.com>:
> 
>> We have switched our mailbox storage format from maildir to mdbox!
> 
> I wonder how I can incrementally change over from Maildir to mdbox?
> I can of course use dsync to mirror Maildir: to mdbox:, but how can I
> make dovecot look at Maildir FIRST and (if that fails) at mdbox? (or
> vice versa).
> 
> That would allow for a smooth transition...

If you don't have shared folders (as explained in previous mail) and you can have per-user mail_location in the userdb, this should be pretty easy. The man page for dsync lists the steps that can be used for online migration.