When user from Dynamics 365 online instance tries to track a digitally signed emails using Dynamics 365 App for Outlook, Cu gets an error stating "This action cannot be performed. The permissions for this message are limited."

steps to replicate the issue:
- Customer clicks on the Dynamics 365 App for Outlook icon for digitally signed emails
- Gets error: "We are sorry" cannot connect to Dynamics 365
- In OWA, similar behavior

Expected behavior:
- Cu wants to use Dynamics 365 app for outlook for Digitally signed emails without error
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