[Dovecot] dovecot imap cluster

[Matteo Cazzador]

Hello, i'm using postfix like smtp server, i need to choose an imap
server with a special features.

I have a customer with 3 different geographic locations.

Every locations have a mail server for the same domain (example.com).

If user1 at example.com receive mail form external this mail going on
every locations server.

I've a problem now, is it possible to syncronize the state (mail flag)
of user1 imap folder mails on every mail locations server?

Example, if user1 read a mail on server one is it possible to change
flag of the same mail file on server 2 and server 3?

Is it possible to use dsync for it?

I need something like imap cluster.

Or an action in post processing imap mail read.

I can't use distribuited file system.

Thank's a lot

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Ing. Matteo Cazzador
Email: mcazzador at gmail.com
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