[Dovecot] Dovecot proxy server

[michel at casa.co.cu]

Hello

I have installed Dovecot as a POP3 server, IMAP on my internal  
network, the authentication against Windows Active Directory.

I would like to know how to setup a second server dovecot as my proxy  
server for external users outside the network, in another segment of  
different IP addresses, or at least define which mailboxes will be  
stored on another server to be accessible to both servers.

I have reviewed the document on the wiki site, but I said that is only  
possible with mysql authentication, but as I said the road where the  
messages are stored, it is possible for NFS?

Thanks

Michel

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