I am interested in setup my own email server. the configuration should be as following:
+ I want to have 2 emails servers based on iRedAdmin. main and backup
+ Both servers must be always synchronized (account settings & emails) between them self. so if one go's down the other take control.
+ All protocol must work. POP3, SMTP, IMAP
+ Install Roundcube for webmail.
With your bid say how do you plan to sync accounts settings and emails on both servers?