Email Notifications Not Being Received

Gravity Forms hands off the email notification to wp_mail() immediately, so any mail delivery issues are outside the control of Gravity Forms. Gravity Forms gives you a lot of control over who the email appears to come from, and multiple recipients and the like, and some servers choke on that. The wp_mail() function relies on the underlying MTA of your host, and every host is different.

To make your notifications more reliable, please start by installing an SMTP plugin if you are not already using one. We normally recommend one of these two:

http://wordpress.org/extend/plugins/wp-mail-smtp/
http://wordpress.org/extend/plugins/configure-smtp/

There can be issues on the receiving end as well (Google Apps for your Domain and Gmail sometimes both have a problem) but normally an SMTP plugin takes care of 99% of the problem with email notifications not going out.

Do not add both plugins. You only need one. I like WP Mail SMTP personally. They both do the same thing: hijack the wp_mail function and allow you to use your own authenticated SMTP server to deliver the mail for you.

You need to configure it with your SMTP server settings. Then, send a test to make sure it works. From that point forward, it works seamlessly.

Which plugin did you install? I can send you the link to configure it on your site if I know which one you are using.

http://www.thelocalgood.ca/wp-admin/options-general.php?page=wp-mail-smtp/wp_mail_smtp.php

That page has all the options. You will need the details for an SMTP server you can use. Sometimes your web host provides one. Sometimes you can use gmail/google. Sometimes you can use your ISP. I use sendgrid (a paid service.) Basically, you need a server somewhere that will let you use them to send your email. Normally, you authenticate yourself so they know you are authorized, and they take it from there.

Here is a screenshot of my settings for that page: http://minus.com/lbjJa183c9QXmQ