Hi Ceedberri ,
For the mail button action, we are using the
mailto: HTML link.
This link will open the set mailing app in your device.
Mobile devices and Windows tend to already have a mailing app on default.
For Mac, you might have to make sure that you have a mailing app set in your settings.
If you already have a default mailing app set and it's still not working on your end,
let us know which device and browser you are using to test this. We would like to reproduce the issue and see what's causing the issue! 😄