On Thursday 10 Oct 2013 19:34:51 Jogi Hofmüller wrote:
Dear Christian,
Am 2013-10-10 17:06, schrieb Christian Rohmann:
I work for NetCologne GmbH, an ISP in Cologne, Germany. I did a talk "Austausch einer ISP-Mailplattform ohne Downtime" at the mail server conference the Heinlein-Support company held in Berlin in 2011.
Thanks for the video! Unfortunately most things that allowed you to do migration in the file system don't apply for us (e.g. we have mailboxes in the GB range). So I think we will go for dsync and dovecot's proxy features ;)
Perhaps rather 'old-school' now, but I've used Perdition for large transparent migrations in the past very successfully,
http://horms.net/projects/perdition/with Dovecot being your target platform, it makes sense to explore the Dovecot [proxy] approach first; Perdition may be handy to have as a backup strategy.
cheers,
Andrew.