SharePoint Calendar E-Mail Extension 3.0 – Calendar list can’t receive meeting requests sent from Outlook

Applies to SharePoint Calendar E-Mail Extension 3.0 and Meeting Organizer 1.0 (SharePoint 2010)

This post contains some in depth information about the SharePoint Calendar E-mail Extension.

When you activate the Event (with e-mail extension) content type in your calendar list, the Calendar E-Mail Extension registers an e-mail receiver to handle replies (accept, decline …) sent from invitees.

The list now sends invitations to attendees and handles responses but it will no longer accept meeting requests sent to the list.

Calendar E-Mail Extension changes the way your SharePoint Calendar list handles e-mail. To give a brief overview:

  • By default you can e-mail an event to a SharePoint calendar list, that’s it. No invitations, attendees (and resource scheduling) or status…
  • Calendar E-Mail Extension changes this. It enables you to send invitations and receive attendees’ responses, and it uses the list’s default e-mail address to do this.

That’s why the list now can’t receive meeting requests.

  • The Meeting Organizer Add-On to the Calendar E-Mail Extension re-enables the processing of incoming meeting requests, but with extended functionality and a second e-mail address.
  • It gets more data from the original meeting requests (attendees, privacy, …).
  • It provides meeting workspaces automatically.
  • It can take over the meeting’s organizer role.

Please download and install the Meeting Organizer Add-On:

In a nutshell, after you install the “SharePoint E-Mail Extension 3.0”, to allow a calendar list to receive an incoming e-mail meeting requests you need to install the “Meeting Organizer Add-On”. (Thanks Scott)