Further to my post in http://forum.mailenable.com/viewtopic.php?f=3&t=27278, please add an option to notify either the postmaster or a nominated account when a user is locked out due to the password policy. Also give us an option to block incoming connections by HELO/EHLO string (just a wish on that one).
All those failed attempts at logging in by the hacker(s) are locking various users out of their accounts for up to an hour, which they only discover when trying to get or send new email. The Outlook error message is quite confusing to them so they end up asking me if our email server is working. I then log in and unlock their account and all is hunky-dory again.
I would prefer to get an email from the server telling me that an account was locked so I can check why it was locked (user problem or hacker) and unlock the account.