Can I use Google's email-settings sendas API with oauth2

Question

I have a valid oauth2 access_token, that has been authorized with the 'https://apps-apis.google.com/a/feeds/emailsettings/2.0/' scope. I can successfully use this access_token to make requests against other profile api endpoints.

I'm trying to fetch the list of email addresses the account has been verified to send as. I'm using https://apps-apis.google.com/a/feeds/emailsettings/2.0/{domain}/{user}/sendas as the url, and passing the access token in the access_token param. I'm getting an authorization error when attempting this.

Is the emailsettings API supposed to be accessible via oauth2? What am I doing wrong?

Answer 1

This works as expected for paid Google apps for business accounts. It appears to not work for free Google apps for business accounts setup prior to Dec 2012. When using a free account, the error message when providing the access_token in the Authorization header is "Domain cannot use API."

Answer 2

Yes the email setting API is accessible via OAuth 2.0. I suspect that you might not be using an admin account to retrieve other user's sendas. Email Setting API is part of the Admin SDK. If you are using just a regular user account, you will only be able to retrieve your own sendas info