Hey,
we have Full Platform plan of Nylas. We are trying to integrate Nylas into our Laravel backend. Setup 3 environments Production, Staging and Development. We wanted to use the sandbox nylas inbound email for dev, since that doesn’t allow to sent emails to outside members. It used to work. But now when we try to sent to a member it throws 500 error with api.internal_error message.
I have added a connector account and tried with a gmail account for that org. That seems to work fine.