I am having the exact same issue. Confirmations emails are not being received and haven't been for some time now. They have checked junk, added the customercare address to their contacts and talked with their IT department. Can you please look into the following emails for me and the clients are understandably frustrated.
@zoeb I checked the status of those two emails, and only found the first on our Bounce list. The other one should have no problems currently. (I also eded the post for privacy)