curl -X POST 'https://api.nuntly.com/emails/bulk' \
  -H 'Authorization: Bearer apk_xxx' \
  -H 'Content-Type: application/json' \
  -d '{"emails":[{"from":"Tomlinson AI <ray@info.tomlinson.ai>","to":"brian67@gmail.com","subject":"Verify your email address","text":"Thank you for signing up! Please verify your email address."}]}'

{
  "data": {
    "emails": [
      {
        "id": "<string>"
      }
    ],
    "id": "<string>"
  }
}