Google Message Security for Google Apps Administration Guide - Manual (Page 155)

Quarantine Summary & Notifications 155
The default setting is Off for both Inbound and Outbound.
Note: The timestamps for Attachment Manager notifications do not
necessarily correlate with the recipient’s organization time zone settings.
Attachment Manager uses GMT, and organizations can be configured to any
time zone.
User Settings for Notifications
On a user’s Notifications settings page, you can:
• See whether the user has ever logged in to the Message Center
• See whether the user has ever received a Welcome notification (sent when
the user is first added to the message security service)
• Specify the address where the user’s notifications are sent
To view the notification settings:
1. Click a user address on the Users or User Summaries page.
2. On the User Overview page, under Settings, click Notifications.
You can view and set the following fields: