Multiple Login-Names for one mailbox?

[Roland Baum]

Hello,

i'm using Cyrus-2.2 for my mailbox wir PSQL-Sasl plugin for authenication.
each user has his mailbox in email-address-format (user at domain.tdl), so
that he/her can simply login with mbox-name.
other email-addresses are mapped to this mailbox via SQL-DB.

for prospectively applications, i want that one user can login with ONE
OF this email-addresses to this mailbox.
f.e user "fred" has a mailbox "fred at domain1.org" and the adresses
"fred at domain1.org", "admin at domain2.org" and "mailme at domainX.org", he
should can login with ONE OF this addresses to his mailbox
"fred at domain1.org" (or with an other login-ID, f.e. this customer-ID).

is there a posibility to implement this with SASL/SQL in Cyrus??

sincerely

Roland Baum