You can create an email notification using the liquid markup language which gives you a lot of flexibility in the notification emails that you receive

Allows 'file' type inputs and uploading of files via its' forms.

You get a form endpoint like https://getsimpleform.com/messages?form_api_token=39c8f9e5a2de15ad63469475702522b9 which you can plug into your form's action. Giving you complete control over your markup.