Question

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sending email with GAE copies sender — how to stop?

Below is a code to send emails from google app engine in Python. I made a list (pythons) of email-ids to whom I desire to send email to and ran a loop, each time reassigning message.to and executing message.send().

Code below, when run on Google App Engine, sends a copy of email to the sender ([e-mail]) of the email (along with the email sent to the desired email-id). What could be possible reason for this?

from google.appengine.api import mail
from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.api import users

class MainPage(webapp.RequestHandler):
    def get(self):
    user = users.get_current_user()

    if user and user.nickname()=="AUTH_USER1":
        self.response.headers['Content-Type'] = 'text/plain'
        self.response.out.write('Hello, ' + user.nickname())
    else:
        self.redirect(users.create_login_url(self.request.uri))



    message = mail.EmailMessage(sender="Auth User1 <[e-mail]>",
    subject="Testing Google App Engine")

    message.html = """

hi, how have you been
"""
    list = ['[e-mail]','[e-mail]', '[e-mail]']
    for i in range(0,len(list)):
        message.to = list[i]
        message.send()


application = webapp.WSGIApplication(
                                 [('/', MainPage)],
                                 debug=True)
def main():
    run_wsgi_app(application)

if __name__ == "__main__":
    main()

Answer 1

This is by design. You cannot send email from a user in App Engine without the user getting a copy.