This is a complete, authenticated email send — no SMTP host, no port, no XOAUTH2 string anywhere:



curl --request POST \
--url "https://api.us.nylas.com/v3/grants/<GRANT_ID>/messages/send" \
--header "Authorization: Bearer <NYLAS_API_KEY>" \
--header "Content-Type: application/json" \
--data '{
"to": [{ "name": "Kim...