Create a Send As Association
Create a send-as permission. The allowing_user_id must be equal to your own user ID.
Authentication
AuthorizationBasic
Basic authentication of the form Basic <base64(username:)>.
OR
AuthorizationBearer
Bearer authentication of the form Bearer <token>, where token is your auth token.
Request
This endpoint expects any.
Response
Successful response
Errors
400
Bad Request Error
401
Unauthorized Error
404
Not Found Error