[Dovecot] Replication via sneakernet

[David Bishop]

D'oh. Replied to Timo instead of to the list. Apologies!

On Thu, Nov 28, 2013 at 1:07 PM, David Bishop <dovecot at dpe.lusars.net>wrote:

> On Thu, Nov 28, 2013 at 1:02 AM, Timo Sirainen <tss at iki.fi> wrote:
>
>> On 28.11.2013, at 5.17, David Bishop <dovecot at dpe.lusars.net> wrote:
>>
>>  > There are trams shuttling back and forth along this road (stopping at
>> each
>> > station), and adding a small box (such as a weatherproofed Raspberry Pi
>> > with a wifi dongle) to transport files up and down the road is pretty
>> > simple.
>>
>> But if you do it this way and you can keep a full copy of the shared mail
>> storage on your Raspberry, that would be possible already with dsync I
>> think. dsync supports quick incremental updates by keeping track of the
>> previous state between the servers. This state is saved in a file, so you
>> could keep a different state for each different dsynced server.
>>
>
> Bravo for a solution that doesn't require a code change and doesn't seem
> to require directly touching the spools! :)
>
> Reading the man page, it looks like only mirroring for people who happen
> to be checking email at a given place (as well as people who have received
> mail and the shared mailboxes) seems like a pretty simple thing to do.
> Hurrah!
>
> Thank you, this is wonderful.
>
> And more questions...
>
> If I'm running a virtual mail domain, the user/pass I give is for the
> virtual mail user, correct? And, in a virtual mail setup, do I specify
> "username" or "username at domain"?
>
> Is there a window beyond which synchronization becomes more difficult? For
> instance, if messages (or metadata updates, like "I deleted this message")
> get parked overnight without updating, and in the morning (9 hours later),
> the trams (one at a time) pull into range of wifi, there won't be
> confusion, right?
>
>