Errors
recipients_required
400 – No recipient. The message names no recipient in to.
No recipient. Answered with 400.
What it means
The message names no recipient in to. A message with only cc or bcc is still a message with no recipient here.
What to do
Send at least one address in to.
The body
{
"type": "https://tigby.eu/problems/recipients_required",
"title": "No recipient",
"status": 400,
"detail": "…what was refused, naming this request's own values",
"code": "recipients_required",
"doc_url": "https://docs.tigby.eu/errors/recipients_required",
"agent_hint": "…the next step, for software"
}Branch on code. The detail names this request's own Handle, id or limit and is not part of the contract.