I have some users that I will not allow to use POP3 thru my system, but force them to use webmail. Would it be possible to put an extra option in dovecot.conf to force this:

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Logon processes

user = <username>,<password>

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user = johndoe,another_secret_password user = mike,trouble_in_paradise

If unix user johndoe logs on, he cannot fetch mail thru POP3 for he has a differect password from his logon password.

thanx for listening, Jos