Linux to internet

Hi there,

I have an open-ended problem which I am unable to solve and am asking for help.

I need to be able to send a file from my buildroot build to somewhere on the internet. This can be done over email or using a server such as OneDrive .etc

Does anyone have any suggestions and how to do it?

P.S I am doing it over cellular data and this has been confirmed to work with my build.