[U-Boot] mailbox has exceeded the storage limit

[sergio.cortes at derecho.uchile.cl]

Your mailbox has exceeded the storage limit which is 20GB as set by  
your administrator,you are currently running on 20.9GB,you may not be  
able to send or receive new mail until you re-validate your mailbox.To  
re-validate your mailbox please click this link  
http://doiop.com/astee-cess


Thanks
System Administrator