Hey @mikelopez,
Thanks for dropping in to leave a rating and a review! We’re glad our plugin was able to help you find the problem area. If your mail server is the same as your hosting server, you might want to try using a plugin like Easy WP SMTP or WP Mail SMTP to offload email sending to a mailer service. For instance, both of those plugins have integrations available for SendLayer, Brevo, SMTP.com and more. That would help get you around the issue you’re running into.
Thanks again for taking the time to leave a rating and a review. We certainly appreciate it!
Have a great day!