hi! 

The module does not work with domain www. Without www works fine.

There is a website with the domain http://domain (no www), it works fine unit.

I am copying this site domain http://www.domain - module does not work. After entering the order number and e-mail wrote that the message was sent, but the message is not sent.

I have removed the unit and copied to the site domain without www module after module is installed again. The situation is the same module at the www does not work, if you revert the domain without the www - the module work. %(

Hello Mike,

It seems that there is a problem with your opencart store configuration. You should check your config files and your store settings.