Is jotform.com email blocked by xfinity?

Thanks for meeting us in our community about your email, @chris14313. You've reached the right team for assistance. We recommend checking our Spam filters article for assistance. 

Thank you for the recommendation. Unfortunately, the expected emails were not in spam either. After discussing the issue with the form organizer it appears that xfinity is in fact blocking that domain outside of the spam filter as none of the Comcast.net email address users are receiving emails. I switched to Gmail to be able to continue email communications.