[Dovecot] Using dsync to export mail to remote IMAP account

[Michael]

On 23/04/2013 12:56 PM, 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.
>
> (The intention is to use it whenever a user leaves and wants to copy 
> their
> local mail to Google or whatever.  I currently use uw-imapd's mailutil --
> it works, but it's dreadfully slow.)
>
> As a first crack at it, I tried (on the dovecot server)
>
>     dsync    -o imapc_user=remoteuser
>         -o imapc_password=remotepassword
>         -o imapc_host=remote-imap-server
>         -o imapc_port=993
>         -o imapc_ssl=imaps
>         -o imapc_features=rfc822.size
>         -o imapc_list_prefix=remoteprefix
>         -o mailbox_list_index=no
>         backup -f -u localuser imapc:
>
> I got this error:
>
>     dsync(localuser): Error: user localuser: Initialization failed:
>         Namespace '': Unknown mail storage driver imapc
>     dsync(localuser): Fatal: User init failed
>
> Is exporting mail to a remote (non-dovecot) IMAP account even doable 
> with dsync, or
> am I completely off-track?
>
> Joseph Tam <jtam.home at gmail.com>
>
> -- 

No I think dsync only works with dovecot servers.

I find LARCH works best for what you are trying to do:

https://github.com/rgrove/larch