Oracle Responsys AFTM / Asynchronous API
The AFTM (Automatic Failover for Transactional Messaging) REST API provides asynchronous, high-availability alternatives to the synchronous merge and trigger operations — HA Merge List Members, HA Merge Trigger Email (with and without attachments), HA Merge Trigger SMS, HA Trigger Push Message, and HA Retrieve List Members. Requests are queued and acknowledged immediately; a request carrying more than 200 recipients is rejected outright. Controlled Availability, and it requires an additional SKU.