Please contact your email service provider and request they add Jotform’s IP addresses to their whitelist.
It is also a good idea to add firstname.lastname@example.org and email@example.com to your contacts lists and whitelist our common domain names below.
Jotform IP List
Jotform Default Email List
Jotform Sender Domains List
If you’re still having problems with emails, please do not hesitate to contact us.