Outlook not sending Shared Review Emails

Hi All,

I could really use some help here.

When initiating the Shared Review process, Adobe says that emails to reviewers are being sent via Outlook but they are never sent.

I have:

Uninstalled and reinstalled MS Office.

Uninstalled and reinstalled Adobe Acrobat Pro XI

And I still have the same issue. It worked fine till 2 weeks ago.

MS Office version: 14.0.7128.5000

Adobe Acrobat Pro XI version: 11.0.0

I have deadlines I am missing because of this! Help!

Joel