Customers sometimes have problems associated with comment notifications from WordPress. That is, they have comments turned on, and they have their settings configured to send email when a new comment appears. But they don’t get the email.

And it might not be only comment notifications that don’t get through. Other WordPress notifications, such as new user registration, or password lost and changed, might not get through.

Unfortunately, there isn’t a simple answer. WordPress has its own built-in email feature. But that depends on the underlying email infrastructure provided by the host of your site. If there is something misconfigured in the email setup on your host, you might not get any email from WordPress.

Check out the following resources for more information on the problem and what to do about it:

• Gravity Forms: Troubleshooting Notifications – This starts out describing problems that prevent GF notifications, then proceeds to outline more fundamental problems.
• Yoast: Email Reliability – The Gravity Forms article refers to this article for more fundamental technical information about how email gets delivered. In particular, it provides info about SPF records and how they work.