I am not receiving email notifications on two of my recipient emails

Hey we're not getting emails to the following notification emails

drake@brand-x-mobile.com  and bill@wowbrows.me

for the following form

https://form.jotform.com/40676843724967

This is the second email to support!

The email (dr**e@br**d-x-mobile.com ) is in the bounce list.

Reason(s) : smtp; 550-5.7.1 Unauthenticated email from yahoo.com is NOT

I have removed it now from the list. You should be able to get the email notification now. 

Please contact your email provider and request for the JotMail IP addresses to be whitelisted. You can also use your own email address. Here's a guide: How-to-Setup-SMTP-for-a-Form

Hope that helps. Thank you.