Is it possible to restrict users or domains to only particular email protocols?

[whitecurve]

Is it possible to restrict users or domains to only particular email protocols?

For instance can I have the server running pop3, pop3s, imap & imaps but only allow:
user1@domain1 access to the pop3's but not the imap's?
user2@domain1 access to the pop3s, not pop3, imaps & no access to imap.
Or any any other combination, you get the idea. . .. .

 

[ShadowMan@]

The control panel and entire Plesk server system was not intended to be used that way, so there are no built in functions like that.

The only (nightmarish) way I can see of doing it would require your clients to have static IPs, then use the firewall to block certain IPs from specific ports. This is really not a feasible solution, just one theoretical nightmare possibility (upkeep would be bad).