Exchange 2003. When mailbox reaches size limit , user receives the following email. From: System Administrator "Your mailbox has exceeded one or more size limits set by your administrator."  Is System Administrator an active directory account ? Does it have a mailbox? We are using GFI to archive our email and I want to filter these types of messages, but I am not certain which account is sending the warnings.

The messages are not sent from a specific account, but rather from the System Attendant. Jim McBee - Blog - http://mostlyexchange.blogspot.com

So the System Attendant does not have an associated Active Directory account? Does it have an mailbox?

Hi SysAdmin2415, Sure, the mailbox do associates a Active Directory object, you could find it follow below: lunch adsiedit CN=Microsoft System Attendant,CN=<servername>,CN=Servers,CN=<sitename>,CN=Administrative Groups,CN=<orgname>,CN=Microsoft Exchange,CN=Services,CN=Configuration,CN=<domain> And you could find the mailbox through ESM. Some related information: http://technet.microsoft.com/en-us/library/aa996235(EXCHG.65).aspx http://blogs.technet.com/b/evand/archive/2004/12/21/329172.aspx Regards! Gavin TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.