restore from cyrdump

[Patrick Goetz]

On 12/09/2014 09:03 AM, Willy Offermans wrote:
>> Now I want to restore the data of user.$USER on a different server.
>>
>> How should I proceed?


To move a single user to a new server, in the past I've used imapsync to 
good effect (http://imapsync.lamiral.info/):


   imapsync --host1 my_old_server --authmech1 LOGIN --user1 pgoetz 
--password1 xxxxx --host2 my_new_server --authmech2 PLAIN --user2 pgg 
--password2 xxxxx


In terms of a general backup scheme, since I have no idea how to set up 
a replication server, I've been toying with using imapsync for general 
backups to another (otherwise unused) imap server.  I think the only way 
to do this for the entire mail store is to create a cyrus-backup user 
that has read access to all folders on the primary server and read/write 
access to the backup mail server.  However, I haven't tested this and 
don't know if this will work properly.  Also, as suggested by Marcus 
Schopen, this is liable to be quite slow, as each user has be to synced 
individually AFAIK.

(I'm pretty sure the last time I used imapsync it was free, but the 
author appears to now be selling it.)