HTTP 422
Recipient Domain Not Allowed
One or more recipients are not in the allowed domain list configured for this token.
Example response
{
"type": "https://email.squibble.ch/docs/errors/messages/send/domain-not-allowed/",
"title": "Recipient Domain Not Allowed",
"status": 422,
"detail": "...",
"instance": "/api/v1/..."
}