Ah, ok!
This is not usually a GD issue, but we have come up with a few steps you can take to try to narrow down the problem.
First we recommend you install the “email log” plugin from wordpress.org
Activate that, and do your normal activities that generate email.
Then check the plugin log to see if those emails are being created by the site. If not, maybe it is a GD problem. If yes, then you will probably need to talk to your host or change configuration to meet your hosts criteria.
If you aren’t already, please consider:
Email sent from *@gmail.com will likely be considered as spam.
Your host may block email from all webmail providers
Even if sent, it may still end up in the spam folder.
You can:
Install email log
change the GD Email to a domain email like [email protected]
– make that change at GD – General
Change your WP site email to a domain email
Change the email templates at GD – Notifications (especially the text “Website Enquiry”)