Disabling the feature – Sender email address does not belong to the site domain

Hello,

so I am thinking Could You maybe add an option for advanced users (developers?) to turn off the “Sender email address does not belong to the site domain” warning. I perfectly understand why is it there and I think it’s great that You think about usual users but I have bunch of websites which use external mail servers and everywhere I (and my clients) see the red notification. It would be nice to have possibility to disable it maybe in one of forms: button in configuration of the form, variable in php, function in php. 🙂

Sincerely,
Thomas