[Dovecot] dsync - one or two ways?

[Seth Mattinen]

Timo Sirainen wrote:
> dsync in Dovecot v2.0 tree is a new utility for syncing a mailbox in two
> locations. Some things it can be used for:
> 
>  - Initially transfer a mailbox to another server via SSH
>  - A faster sync done to an existing mailbox, sending only changes
>  - A superfast sync based on modification sequences.
>  - Source and destination mailboxes can use different formats
> (convert-tool will be history)
> 
> dsync can handle all kinds of conflicts in mailboxes, handle mailbox
> deletions, renames, etc. So it's safe to sync even if both source and
> destination mailboxes have had all kinds of changes.
> 
> Now, the question is: Does anyone want dsync to only sync changes from
> source to destination, instead of doing a full two-way sync? I think in
> typical cases where you'd think you would want only one-way sync are
> also the cases where there's no changes coming the other way in any
> case.
> 

Yes; moving mail from an old source (for example, my old home dovecot
server which still occasionally gets mail, but otherwise I don't really
use it). I wouldn't want all my current mail sent to it for this purpose.

~Seth