Hey Cooncatz,
I’m so sorry to hear you are experiencing this. I just tried to reproduce this on my own installs and wasn’t able to do so. We want to help you get to the bottom of this so here are some things that should help you track it down.?
– Try deactivating all your plugins that are not for Ninja Forms and switching to a default WordPress theme like Twenty Sixteen. If your issue goes away there was a conflict with one of these. Reactivate them one at a time until the issue returns and that will tell you exactly what the issue was.
– Please check out our troubleshooting documentation here: https://ninjaforms.com/docs/troubleshooting-email-problems/
Also, many email hosts will reject emails sent “To” and “From” the same address. Can you make sure that you are using different email addresses in the “To” and “From” fields in your Email notifications.
– As a test, can you try a service like MailGun to manage your email? https://wpninjas.com/sending-email-with-mailgun/
– If this doesn’t resolve your issue you will need to submit a support request to our team(https://ninjaforms.com/contact/).
Thanks,
Kenny
WP Ninjas, LLC