How to send mail with in the app without open Gmail?

Hello, I want to send directley from the app, an email.
there are options to do it?
i know about ifttt and triger
but i want maybe an extiosion if has…
or another option…
and i have made search

You can preset the recipient, subjet & body by using activity starter, then send the mail but it will open gmail or other mail app.

If you want an extension (wich is not free), a google research would have led you here.

For another alternative, here is a tutorial

Different eMail solutions for App Inventor