Sorry to hear that some of the notifications didn't make it your way! I've been using itch.io's email system (which allows you to contact everyone in the Jam).
As PSNick mentioned, there were other notifications that I sent out. I would maybe look at either taking the mail system itch.io uses off of your blacklist, or using an alternate email for your itch.io account.
Unfortunately, with entries now closed, you won't be able to submit an entry. Sorry again that things didn't line up!