ethanpil

Install this plugin into any WordPress system with a working Gravity Forms plugin and all known disposable email address hosts will be rejected and fail validation. This only checks the field type “email” and does not require any configuration or special settings. Its global, if its turned on, then its working.
Thanks to adamloving for the initial list: https://gist.github.com/adamloving/4401361
This WordPress plugin is brought to you by <a href="https://www.angeleswebdesign.com" title="Los Angeles Web Design WordPress Experts" rel="nofollow ugc">Los Angeles Web Design</a>

Gravity Forms Reject Disposable Emails

Reject disposable email addresses in Gravity Forms email fields.

tempmaildetector

The Temp Mail Detector WordPress Plugin is a privacy first temporary email prevention plugin which helps stop disposable emails from being able to sign up or comment on your website.
By combining the ability to use custom block lists alongside the optional Temp Mail Detector API you can choose which hosts are allowed or not allowed to register or comment on your website.
<h3>What’s available</h3>
This plugin offers multiple options: 
* Blocklist – You can enter a list of domains you would like to block at signup. 
* Protect comments – Choose if you would like the plugin to protect comments from disposable emails. 
* Plus emails – Block emails which have a <code>+</code> in the user part. 
* External check – This makes use of the dynamic Temp Mail Detector API for real-time checks.
To check against the Temp Mail Detector API, you will need to <a href="https://tempmaildetector.com" rel="nofollow ugc">register for a free API key</a>. 
Each API key gets 200 lookups for free each month, which reset on the first of the month.
<h3>External services</h3>
If external checks are enabled via the use of an API key, when checking if an email is temporary or not through the Temp Mail Detector API, only the website address of the email is sent to be analysed. Your users emails addresses are never transmitted or shared with anyone.
If an email is <code>user@website.com</code>, this plugin will only send <code>website.com</code> to be analysed. By never sharing your users emails, you can both check if an email is disposable while also maintaining your users privacy.
<h3>Terms of Service / Privacy Policy</h3>
Please make yourselves familiar with our terms of service and privacy policy, which can be found here:
<a href="https://tempmaildetector.com/privacy-policy" rel="nofollow ugc">Terms of Service</a>
<a href="https://tempmaildetector.com/privacy-policy" rel="nofollow ugc">Privacy Policy</a>

Temp Mail Detector – Block Temporary Emails

Detect and block temporary emails from registering on your website using the Temp Mail Detector plugin.

Gravity Forms Reject Disposable Emails vs Temp Mail Detector – Block Temporary Emails