Meeting requests posted from Outlook 2011 or the Outlook 2010 web application to SharePoint 2010 Calendar do not get added

Question

When adding a sharepoint calendar to a meeting request using either Outlook 2011 or Outlook 2010 web app, the event does not appear in the calendar.  I have tracked the email to the server and can show it gets picked up correctly, but then it does not get posted.  Outlook 2010 events get added successfully. 

I have the following email settings for the SharePoint calendar:

Allow this list to recieve email - yes

Save email attachments - yes

Accept email from any sender.

Any reason why SharePoint does't accept meeting requests fromt these other Microsoft clients?

Answer 1

I figured out a workaround.  I created a contact for the SharePoint list in Exchange and set the MAPI value to never send rich text.  That seems to resolve the issue so now Outlook 2011 and Outlook web app are successfully sending events to the SharePoint list via email.