Interesting!
We had a small meeting here and guess what I've just learned.
For over a week now, verizon refuses all emails coming from our servers! This is really serious as we've even had a couple of purchases coming from that domain (i.e. from users with email ...@verizon.net) and these people didn't even get their license keys!
It's really shame for Verizon to malfunction like this... We've checked tens of spam blacklist DB's are our servers are not listed anywhere...
The problem is, it's pretty hard to contact verizon without email. We tried to fill in a web form and even call them, but neither worked...
Let's wait if they can fix this. Maybe you could also notify them of the issue... I mean, the more people complain, the sooner they're gonna fix it (hopefully).
Thanks
Vlk