Our users are being prompted for login credentials when opening email activity records. I've determined that the reason for this is the msgbody is being rendered in an IFrame control with a security setting of "restricted".
Being that this form is out of the box, I assumed that the only way to change/remove that troublesome IFrame attribute was to write some javascript in the email forms Onload event. That seemed simple enough but it didn't work because the Onload event occurs after the form has loaded, after our users are prompted.
Is there a configuration setting or any other way to override this security attribute for out of the box CRM Forms?
