[imp] Imp and kerberos

[Jean]

Hello

I'm writing you about my new server.
I decided to change the way my users log in using kerberos authentification.
I wanted to install horde and imp as webmail... horde succeeds the 
kerberos authentification but when I want to read my mail, Imp asks me 
to re-authenticate and it always fails.

I looked a lot on the web and I found very few docs : they dealt with 
horde and kerberos but none with imp and kerberos.

Is Imp able to read cyrus-imap mailboxes with kerberos authentification ?

Thanks