Authentication using AD : bug ?

Hello,

I've setup a mail server (still in test) with Postfix and Dovecot, authentication made using Active Directory.

I authenticate my test user in AD well in Dovecot. However, if I change this user's password in AD, the old password still works for authentication in Dovecot and the new is working too.

Is there a time to make Dovecot don't "remember" the old password or is it a bug ?

Restarting Dovecot don't solve the problem.

Do you already heard about this ?

Please tell me what conf files you maybe need.

Thanks in advance

Nicolas

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