Thank you for all your recent comments around BT's new mail platform.
This particular thread was created some time ago so at this point I am going to go ahead and lock this thread. I have done so because there is a new discussion taking place over on this link, Monstrous new BT email upgrade which we are actively monitoring. It makes it easier to manage if we have all feedback around our new email platform in one place.
Last week we posted an update on the issues that our customers have raised in terms of BT email, you can read this update from here, Email migrations - Update from BT