Not getting email notifications sent to us

None of the form results are being sent to us. They should be coming to customerservice@s4g.com. Please advise.

That is because your email address has been added to our bounce list:

Result: 

customerservice@s4g.com is IN Remove the bounce list 

Reason(s) : smtp; 554 4.4.7 Message expired: unable to deliver in 840 minutes.<452  Domain size limit exceeded>

I've fixed this for you, but we recommend checking this guide to prevent the issue from happening again:

http://www.jotform.com/help/208-How-to-setup-email-alerts-to-prevent-email-bouncing-related-issues

The whitelisting part is important.