calliko

Validation Plugin comments. The plugin is based on js-script jquery.validate. 
The plugin does not require any settings and works automatically for standard WordPress comments, of course, if you have a standard theme.

comment validation

Хороший простой плагин, работает из коробки ровно так, как ты и ожидаешь. 

Работает как ты ожидаешь

Validation Plugin comments. The plugin is based on js-script jquery.validate.

Clarion Technologies

Yogesh Dalavi

Saurabh Patil

Add a customized functionality to add a email field validation check point to the popular Contact Form 7 plugin. A DNS verification validation has been integrated to verify email address from a valid domain.

Contact Form 7 Email Validation

Contact Form 7 Email Validation plugin adds an extended validation to verify domain in email address  for email fields of Contact Form 7 plugin.

comment validation vs Contact Form 7 Email Validation