My Linux Notebook

By default Evolution doesn't recognize MS Outlook invitation formats although it does have this feature. The reason why it doesn't recognize Outlook invitations is because Evolution comes with a "Prefer plain-text" plug-in which is enabled by default. In order to enable Evolution to recognize Outlook invitation and to add an appointment in the Calendar we need to disable this plug-in.

How to enable Evolution to recognize Outlook invitations:

1. Open the Evolution Plugin Manager window by selecting the "Edit" entry in the Evolution file menu and then choosing Plugins.
2. Scroll down to the "Prefer plain-text" entry and disable it by removing the mark from the check box near it. Press the Close button.

Now Evolution should display Outlook invitation in a special format that will let you add the appointment to your calendar and send a response to the sender.