Ability to create MDaemon Cloud across multiple servers using an universal URL for WorldClient as following or similar one. And a universal Public Contacts as well.
For example with four servers configuration when an incoming HTTP request arrive any one of the four server can reply however, for a user who doesn’t have a local mailbox, MDaemon will query other servers to discover the requested user account on one of them. If account is found, MDaemon will route the HTTP request to the server where the account is located.
This is being considered for future versions.
Stephen Yeong commented
Better with POP3/IMAP/SMTP-MSA across cloud server feature