gsvaghi on "[Plugin: Fast Secure Contact Form] Wordpress or PHP version"

I would like to use the SMTP email facility which is available with the PHP version of FS Contact forms. Does the PHP version have full integration with Wordpress. Is there another version of the SMTP email facility I can use with WP? The suggested SMTP and WP integration plugin is no longer supported...

http://wordpress.org/plugins/si-contact-form/