This method sends a message to a given recipient(s) from the user associated with the session key. A session key must be submitted via the X-Session-Key header. A successful transaction will receive a 200 status code.
400The SendMessageMessageData model is required in the request body. || The To field is required. || The Subject exceeds maximum length. An invalid Content Id was provided on an attachment.
401The X-Session-Key header is missing. || Bad session key. || Session key expired. || Recipient Invalid - To recipient is [ToEmailAddress]. || Recipient Invalid - Cc recipient is [CcEmailAddress]. || Recipient Invalid - Bcc recipient is [BccEmailAddress]. || File sizes greater than 32 MB are not supported. || Message not sent because you do not have permission to send or the email address is incorrectly formed for one or more of the recipients specified. || At least one recipient must be specified. || The custom notification template '{template name}' was not found. || The CRM Custom ID exceeds maximum length.