Send a message

POST/api/v1/mailbox/messages/send
Requires amailbox token— it acts as one mailbox holder, not as the organization.

Submits through Postfix and files a copy in Sent. The From address is always the signed-in mailbox: submission is trusted-network rather than SASL-authenticated, so Postfix's own sender-login check is bypassed and this endpoint is the only thing preventing one mailbox sending as another. Replies (in_reply_to set) flag the original \Answered; forwards carry attachments over with forward_attachments_from + attachment_indexes. With send_at (ISO-8601) the message is stored in the Scheduled folder and sent at that time instead -- the response then carries send_at and the id it can be cancelled by.

Request

POST/api/v1/mailbox/messages/send
curl -X POST 'https://app.mailyte.com/api/v1/mailbox/messages/send' \
  -H 'Authorization: Bearer MAILBOX_TOKEN'
The key names its own organization, so no X-Organization-ID header is needed.

Response

Successful Response

Returned inside the standard envelope.

Errors

Every status, with what causes it and what to do, is on the error reference.