Possible architecture ?

Hi,

I'd like to achieve the following setup whit dovecot using multiple servers : passwords.

• one server dedicated to all client IMAP (TLS) connections (i http://mail.numeezy.commap.mymaindomain.com, see below )
• each backend server has it's own local storage. no replication
• each backend server responsible of a few domains
• each backend server has it's own Mysql local database for user's

                                                   ===> Server 1 :

domains A, B and C

====> i http://mail.numeezy.commap.mymaindomain.com ===> Server 2 : domains D, E and F (143 TLS / 993 SSL) ===> Server 3 : domains G, H

For example, if a user connects from domain E to i http://mail.numeezy.com map.mymaindomain.com, will Dovecot be able to use password database hosted on Server 2 ?

Thank you !

Alex