Hi guys,
Sorry for the delay.
The issue seems to be that emails regarding that opportunity aren't also being attached to the contact within that opportunity. I must admit this issues isn't with me directly, and the lady with the problem isn't currently in. I will try and get a better explanation with more details if possible.
But from what I gather and to clarify: E-mails against that opportunity should also ideally be against the contact linked to that opportunity, but they currently aren't.