Calendar+share+invites+sent+as+blank+emails

=Problem= Calendar share invitation emails are sent to external domains as a blank email with no content and no link to share a calendar.

=Solution= Set the email to send as Rich Text

**For Microsoft Outlook 2010:**
To send messages in TNEF, follow these steps:
 * 1) Click the **File** tab, click **Options**, and then click **Mail**.
 * 2) In the **Compose in this message format** list, click **Rich Text**, and then click **OK**.


 * For Microsoft Office Outlook 2007: **

Follow these steps to send messages in TNEF:
 * 1) On the **Tools** menu, click **Options**, and then click the **Mail Format** tab.
 * 2) In the **Compose in this message format** list, click **Rich Text**, and then click **OK**.


 * For Microsoft Office Outlook 2003 and earlier versions of Outlook: **

Follow these steps to send in TNEF:
 * 1) On the **Tools** menu, click **Options**, and then click the **Mail Format** tab.
 * 2) In the **Send in this message format** list, click to select **Microsoft Outlook Rich Text Format**, and then click **OK**.