Hi @MITRADebarthaGECoreTechCyber-2843,
There's nothing to it my friend. I'm not sure if you flask app is the email app itself or if it's sending the request, but it really doesn't matter. What you would do though is create an endpoint on your email generator app that will respond to HTTP request, a post. Something like
@app.route('/send',methods = ['POST'])
def login():
mailbody = request.form['body']
// send email
return 200
and from your other app, you would simple send an HTTP POST request to https://youemailapp.azurewebsites.net/send.
Let me know if that helps or if you have any blockers.