saslauthd + multiple authentication mechanisms possible?

[Ferdinand Goldmann]

Hi,

I am trying to set up authentication via LDAP (Novell eDirectory) for  
our Cyrus IMAP server. However, for a transition period, I'd like to  
have the old Unix passwords available, too, so users are given a  
grace period to change the configuration of their mail clients.

Is it possible to combine multiple authentication mechanisms in  
saslauthd, or should I rather try to set up PAM authentication?

TIA
Ferdinand