Scheduling Analysis for Office - Success but nothing emailed

We have BusinessObjects 4.1 SP5, Patch 1 with Analysis for Office 1.4.10 BIP Add-On installed. When we schedule a workbook to be delivered via email the job completes with a status of "success" but it never ends up at the destination. We are able to schedule Webi reports to be delivered via email successfully.

Scheduling the workbook does work if my destination is BI Inbox.

I have reviewed SAP Note 2134836 and I believe we have the environment configured correctly.

Has anyone else had this issue?

Thanks!

Sarah