What are the rules for sending email through an application

[mikaye]

Previously, I had sent emails in my GAE appplication through my own
account. This works fine.

e.g. myapp.appspot.com

I'm working with a 3rd party and have updated their site so their
domain, http://www.nextgreatstartup.com, points to myapp.appspot.com
by adding it as a service to their GAE apps aacount. So far, so good.

I added a new user to their GAE apps account,

e.g. in...@nextgreatstartup.com

I updated the app to send emails through this user.

I don't see any error messages in the app logs nor do I receive any
emails sent from the app.

Any idea what I'm doing wrong?

[stephenp]

Is in...@nextgreatstartup.com an administrator in the appengine console for "myapp"? You should see it listed under "Permissions" on the AppEngine console. 

If you don't see the email, you can use the form at the bottom of the Permissions page to send an invitation to in...@nextgreatstartup.com. Once that user accepts the invitation, you'll be able to send emails with that from address.

Stephen