Solving “InvalidSenderError: Unauthorized sender” in AppEngine

Mon, Mar 8, 2010

Tech Tips

You might get this message in Google AppEngine when sending an email message and specifying a custom from address. To get it to work you must add the address as a developer for your application (or use the email address you signed up with).

Steps to Add a Developer Email Address:

  1. Log in to your Google App Engine Account.
  2. Under Administration, click Permissions, and add the email address.
  3. Log out, and check for the validation email.

More Info:
This is quite a hassle. I understand the reason is to cut back on spam but not only do you have to have a valid email account but you must create a google account for it.
In my case, I just wanted to send notifications out but I don’t monitor the sender address (but I do include a contact link in the email).
Darn spammers!

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5 Responses to “Solving “InvalidSenderError: Unauthorized sender” in AppEngine”

  1. duxa Says:

    Thank god someone took the time to detail their solution. Much appreciated!

    Reply

  2. appengine_dev Says:

    Strange – there is no “Developers” under the Administration section.
    I am using Google Apps authentication.

    Reply

  3. Abu al-Sous Says:

    Great job, easy to following instructions. May god bless you.

    Reply


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