curl --request POST \
  --url https://openapi.enginy.ai/v1/identities/{identityId}/mailboxes \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "email": "jsmith@example.com",
  "provider": "imap",
  "credentials": {
    "password": "<string>",
    "imapHost": "<string>",
    "imapPort": 32768,
    "smtpHost": "<string>",
    "smtpPort": 32768
  },
  "makePrimary": false
}
'

{
  "status": "success",
  "message": "<string>",
  "data": {
    "id": 123,
    "identityId": 123,
    "email": "<string>",
    "provider": "google",
    "isPrimary": true,
    "emailCredentialsExpired": true,
    "healthStatus": "healthy",
    "warmup": {
      "enabled": true,
      "mailboxId": 123
    }
  }
}