Have you tried dsync (part of dovecot)? I don't know if it works for migration to a different (major) version of dovecot, but it's a nice tool. And it works also over ssh.

Giulio

Hope this helps.

Il 09/09/2011 15.34, Tobias Hachmer ha scritto:
On Fri, 09 Sep 2011 15:22:54 +0200, Robert Schetterer wrote:
Am 09.09.2011 15:14, schrieb Tobias Hachmer:
What is the best way to copy the existing mailboxes from the older
machine running dovecot v1.2.15 to the new naked machine?

i used imapsync in a bash script
http://ks.lamiral.info/imapsync/
at a massive migration

ok, but this tool is not free of charge.
Are there any known problems just copying the mailboxes with scp or rsync?

Tobias



--
Giulio Casella                                         giulio at dsi.unimi.it
System and network manager
Computer Science Dept. - University of Milano

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