[imp] Old IMAP password seems to stay in cache.

[Fabrice Di Pasquale]

Hello,

We are using Horde 2.2.4 with IMP 3.2.2
When a user logs in, then logs out, and then changes his password 
(through a web interface that we did), he cannot log in anymore for some 
minutes, neither with the new password, nor with the old one.

Can somebody tell me which cache has to be deleted to avoid that problem ?

Thank you.
Regards,

-- 
Fabrice