On Mon, 2013-04-22 at 19:56 -0700, Joseph Tam wrote: > > I've read the web/man pages on dsync, but it's not clear to me whether > dsync can be used to export (rather than import) a user's mailbox to a > remote non-dovecot IMAP account.
It should be possible at some point, but currently probably won't work very well. > I got this error: > > dsync(localuser): Error: user localuser: Initialization failed: > Namespace '': Unknown mail storage driver imapc > dsync(localuser): Fatal: User init failed But this looks like you simply haven't compiled Dovecot with imapc support. See if dovecot --build-options|grep storage returns imapc.
