omkarhatalkar

Ok, So here is a temporary solution which I did and worked:
1. Remove unnecessary code from index.php
2. delete <FilesMatch>… </FilesMatch> part of code from .htaccess which might be available in wp-admin, wp-content and wp-includes folders as well.

Temporary since it’s a malware likely to affect your index.php file which is overwriting the .htaccess file by adding <FilesMatch>… </FilesMatch> part of code.

Regards,
Omkar N Hatalkar

Tried this Temp Solution but email is still not sent, at-least it removes the red border message.