Praveen a11n

This plugin will send an email out to the administrator of the WordPress site to confirm and check if the server is able to send out an email
In future this plugin will also provide a whole suite of checks for other things.

Server Mail Check

This plugin will send an email out to the administrator of the WordPress site to confirm and check if the server is able to send out an email

Mailcheck.co

0jekson0

nosovk

Our plugin will be useful to those who are working every day to increase conversion in email mailings and want to decrease bounce rate or accept only real users of all submissions. We will also be useful to those who want to know who is behind that email.
We created a plugin that gives the most accurate data, reachable leads, and which will only accept email addresses from users who have submitted valid emails through any type of form.
At the moment we integrate with: 
* WP-forms 
* ACF 
* Contact Form 7 
* WooCommerce 
* Elementor 
* Mailpoet
You can install and use the plugin by adding an API key, generated from the account <a href="https://www.mailcheck.co" rel="nofollow ugc">free account</a>. 
We aimed to help and make sure you have accurate list of the real users 
<a href="https://www.mailcheck.co/" rel="nofollow ugc">mailcheck</a> feel free to request more integration if needed or contact our support team. 
If you are looking for more detailed information of how to better use the plugin, feel free to check our blog.

MailCheck.co: Validate emails in one click

VALIDATE YOUR MAILING LIST IN ONE CLICK Be confident your mailing list contains only real emails addresses, get rid of bots and inactive users

Server Mail Check vs MailCheck.co: Validate emails in one click