Does the Exchange SMTP Virtual servers' in a QCS deployment, require the Resolve Anonymous E-mail setting to accommodate the Full functionality of FREE/BUSY viewing.
Yes, this needs to be enabled for full functionality of Free/busy viewing to take place with QCS objects.
Exchange 2000 resolves all incoming mail automatically. For more information on the ResolveP2 parameter in Exchange 2000, please see Microsoft Knowledge Base Article 288635 XIMS: ResolveP2 Functionality in Exchange 2000 Server.
Due to architecture changes in Exchange 2003, the ResolveP2 parameter has been replaced by the Resolve Anonymous Senders parameter.
Under Exchange 2003, you must turn on the Resolve Anonymous E-mail option on the SMTP virtual server. To do so, follow these steps:
1. In System Manager, expand Servers, and then expand the target server.
2. Expand Protocols, and then expand SMTP.
3. Right-click the SMTP virtual server, and then click Properties.
4. In the Properties dialog box, click the Access tab, click
Authentication, and then select the Resolve Anonymous E-mail check box.
For more information about the Resolve Anonymous E-mail function, please refer to Microsoft KB Article 828770 Resolve Anonymous Senders Functionality in Microsoft Exchange 2003.
The unchecked setting reveals itself in Outlook , If a sender picks a QCS synched Mail enabled, disabled user from the GAL, and sends a meeting request, the receiver, upon opening the meeting request only shows the senders SMTP address(as if from an Internet sender not a QCS synched object) and subsequently the senders FREE/Busy information is not visible.