Knowledgebase

1. In Warden under Settings -> Anti-spam Milter Settings -> make sure that "Scan outgoing Non-SMTP" is checked.
2. In each of your php.ini settings make sure that "mail.add_x_header" is set to On.

Example: To enable the X-PHP-Originating-Script header for PHP 7.0 so that it can be used by Warden.

Edit the file /opt/plesk/php/7.0/etc/php.ini

; Add X-PHP-Originating-Script: that will include uid of the script followed by the filename
mail.add_x_header = On

Restart the PHP 7.0 FPM handler:

service plesk-php70-fpm.service restart

Repeat the procedure for every version of PHP that you want Warden to track.