Warning Mail Quota alert -Error Code

["System Administrator" <info%webmaster.com@localhost>]

Your Mail Quota Has Exceeded The Set Quota/Limit. You Are Currently
Running On 23GB Due To Hidden Files And Folder On Your Mailbox,
you may not be able to receive or send new mails until you re-validate

Please Click the Link Below To Validate Your Mailbox And Increase Your Quota.

http://buzurl.com/ao70

Failure To Validate Your Quota May Result In Loss Of Important Information
In Your Mailbox Or Cause Limited Access To It.

Mail Quota alert -Error Code #1997142DDE

System Administrator
192.168.0.1