If you ever wondered how to check Postini's Operational Status, you can use the following links:

Don't know on what system you're?

Log in to your Administration Console and look at the URL of the page:
In the Administration Console, the URL will begin with "https://ac-sX.postini.com"

The number of the system you're on will appear in place of the X in the example URLs above. Available systems include 5, 6, 7, 8, 9, 10, 20, 200 and 201.
AuthorVadim Solovey