Romer Ventura schrieb:
Scenario1: This should allow any to lose any of the servers and clients still have access to their emails (although I am not sure how the indexes would react to this and sudden disconnection)- 2 Dovecot Proxy servers, using a virtual IP to where the clients will connect to from the WAN and LAN - 2 Dovecot+Postfix servers with local cache
Your proxy won't reconnect a user to backend B if the backend A fails.