To check real/fake email using Never Bounce API which work with Contact Form 7 as extension. Download it from here.
WordPress 4.4 will add native responsive image support by including srcset attributes to the image markup it generates. It has some good purpose though what you will do to remove it. We can easily do it by calling the following line of code also make sure to put this code in functions.php of your active …
How to fix the intentionally vulnerable plugin