You cannot add a Mail User or a Mail Contact to the Safe Senders list in Exchange 2007 by using OWA Client

In Microsoft Exchange Server 2007 with Service Pack 1 (SP1), you cannot add a Mail User or a Mail Contact into the Safe Senders list by using Outlook Web Access (OWA). When you try to add a Mail User or Mail Contact, you receive the following error message: However, you can use Outlook to add the Mail User or the Mail Contact to the Safe Senders list. Additionally, if you add a Mail User or a Mail Contact to the Safe Senders list by using the Outlook client, you may see the same Safe Senders list in OWA. However, if you remove Mail User or Mail Contact, and then try to add Mail User or Mail Contact back to the Safe Senders list by using OWA, you receive this error message again.

To resolve this problem, download Update Rollup 5 for Exchange 2007 Service Pack 1. For more information about Update Rollup 5 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic: For more information about how to install the latest Exchange service pack or update rollup, see the following Exchange Help topic:

For more information about Mail User and Mail Contact, visit the following Web site:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.