Confirmation Emails For Contracts Sent, Viewed, Signed, Etc. Not Working

Hello Everyone! 

I always rely on the emails from adobesign@adobesign.com  as confirmation that my contracts have been sent. I also like to see when they are viewed, and absolutely when they are signed. The last 6 months or so, they stopped working. Thus, I would have to log into Acrobat on my browser (notifications on desktop app haven't been working in months either) and check religiously to make sure contracts have been sent/signed. It's extremely frustrating.

The emails miraculously started working again about a month and a half ago and then a few days ago, they stopped again. I have adobesign@adobesign.com  in my address book and favorited. 

Is there a bug in their system? Is anyone else experiencing this? Any tips on resolving this issue?

Many thanks in advance!