On Tue, 2011-06-21 at 12:17 +0100, Hugo Monteiro wrote: > Hello, > > I'm in the process of migrating accounts between two dovecot servers. An > old server running ancient 1.0.15 and a new server running 1.2.15. > Account migration is going to be gradual and so i would like to use > imapsync to move messages and subscriptions from one server to the > other. The only problem so far is with POP users. After doing an account > migration with imapsync, and although both servers share the same > pop3_uidl_format = %08Xu%08Xv, the client downloads every message that > was already on the server.
%u means IMAP UID. imapsync can't preserve those. Use either rsync on the filesystem directly or v2.0's dsync.
