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How many times have you received comments on your WordPress site with Email IDs like abcd@gmail.com, user@example.com and wsdgn@kjdngkndfgdljtn.com? Well I’ve received many such SPAM comments and even though Akismet does a good job on catching them why allow them in?
The current email validation methods only check for an @ and a dot(.) which is highly insufficient as 99% of spammers use syntactically valid emails.
Mailgun an email provider run by Rackspace created an email validation service which goes far deeper checking emails.
Features of Mailgun’s Email validation service
- Performs the usual email syntax check.
- Checks the existence of the email domain. So
user@some-random-characters.comcan’t escape. - Checks if the email domain has a MX record. So
anything@example.comis caught. - Checks if the username complies with the grammar of its ESP (Email Service provider). Eg Gmail doesn’t allow usernames less than 6 characters and hyphens so
small@gmail.comandhyphen-user@gmail.comcan’t get away.
Features of this plugin
- Integrates with the is_email() function of WordPress. So it works seamlessly with Contact Form 7, Jetpack/Grunion contact forms, WordPress registration form and any form which uses the
is_email()function. - Kicks spam before it is inserted into the database
- Ensures that the commenting process is uninterrupted even if Mailgun suffers a downtime
- Works completely transparent, nothing changes in the frontend
Requirements
This plugin requires a Mailgun Public API Key which can be obtained through a free sign-up at Mailgun (No credit card required).
If you’re trying out this plugin on a local WAMP/LAMP/MAMP installation make sure your system is connected to the Internet for this plugin to contact Mailgun.
Screenshots
*This plugin is NOT a product of Mailgun
