Disable a User's email account

To: "fedora-list@xxxxxxxxxx" <fedora-list@xxxxxxxxxx>
Subject: Disable a User's email account
From: edwardspl@xxxxxxxxxx
Date: Sat, 10 Feb 2007 19:02:44 +0800
Reply-to: For users of Fedora <fedora-list@xxxxxxxxxx>
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax)

Dear All,

The System is FC6...
So, how to disbale a User's mail service ?
eg : Sendmail + Dovecot ( pop3 /imap ).

Edward.

Follow-Ups:
- Re: Disable a User's email account
  - From: Les Mikesell