Webhooks and Callbacks : SMS.to

Webhooks and Callbacks

SMS.to provides different types of webhooks or callbacks for your business to automatically receive updates on important events and be able to process them on your side.

What are Webhooks/Callbacks?

Webhooks are one of the best ways to connect other applications with SMS.to - especially when the communication and events between those are happening async...

Outbound Message Status Callbacks/Webhooks

This type of callback allows you to automatically receive the status updates on messages you have sent on SMS.to. SMS.to provides you this feature by allow...

Inbound Message Status Callbacks/Webhooks

An inbound - also called MO: mobile originated - message is a message that is sent from a mobile end device and received on SMS.to. This feature is applica...

Opt-Out Callbacks/Webhooks

This type of callback allows you to automatically receive an update when one of your contacts/recipients unsubscribes from your traffic on SMS.to. SMS.to p...

Secure Webhooks and Callbacks

For most use cases our standard approach for webhooks is sufficient but if you have advanced security requirements, you can make use of our secure webhook f...