iPhone OS 3.0: Meeting attendees may not appear to accept calendar events via Exchange account
Symptoms
When sending a meeting invitation (via an Exchange account) from an iPhone with iPhone OS 3.0 or later to someone using who uses an email application (such as Microsoft Outlook 2007) and a different Exchange Server than the sender, the recipient may accept the meeting invitation, yet appear to not be marked as having done so on the iPhone which sent the invitation.
In other words, this issue is not likely to occur if the sender and recipient are both within a company that uses a single Exchange server, but may occur when someone from one company sends an invitation to someone from a different company.
Products Affected
iPhone, Mac OS X 10.5, iPhone 3G, iPhone 3GS, Microsoft Outlook
Resolution
With a compatible web browser, use Outlook Web Access Premium to change a setting: By default, the option for "Automatically process requests and responses from external senders" is disabled. Activate this setting to allow meeting attendee’s to properly show as having accepted a meeting proposal.
To activate the "Automatically process requests and responses from external senders" setting, log in to Outlook Web Access (with the affected Exchange account) using a web browser and navigate to Options, followed by Calendar Options.
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