access delegated mail folder with gmail api
let's say there are alice@gmail.com and bob@gmail.com. Alice has delegated her account to Bob. When I authenticate with Bob and try to list Alice inbox using the REST interface I get a 403 error: bob@gmail.com does not have privileges to alice@gmail.com mailbox. The URL used to query the inbox is: www.googleapis.com/gmail/v1/users/alice@gmail.com/messages When I use bob@gmail.com (or me) as userId there is no problem. How do I access Alice's account? Greetings You would need to get alice's consent and oauth token to access alice's account through the API--delegation is not supported like it is