My notifications are coming from a gmail account set up through config.php for all form submissions, however some emails are going through and others are not.
I have also contacted my server support and asked about SMTP and they replied:
"I've looked over the server, and email is working properly. This seems to be a coding issue with the script itself. We are not php coders, but to answer the question from the post, we do not require that you use SMTP for your script.
The only thing that you might try would be to change this directive to "true".
define('SMTP_AUTH',false);
Other than that, you may need to find a more experienced php coder to look at the script."
Any help troubleshooting this? Thank you in advance