virtual hosts usernames

[Troex Nevelin]

I have compiled cyrus-imapd-2.2.2-BETA on OpenBSD 3.3. I have only one
IP and i need 4 virtual domains to work. As I understood when using
virtual domains cyrus hacks everything before first dot in domain and
uses the last for detecting to which host dose current user belong. In
additional I need webmail to work. My question is can i use usernames
like troex at evil.openbsd.ru and troex at fury.scancode.ru to recive mail
from different mailbox'es on machine with only one ip?

-- 
      born to create future
Troex Nevelin (troex at post.ru)