SMS to URL Forwarder

<i>Incoming SMS to URL forwarder</i> will forward incoming SMS to a URL you specify:

Set sender phone number or name and URL. It should match the number or name you see in the SMS messenger app.
If you want to send any SMS to URL, use * (asterisk symbol) as a name.

Every incoming SMS will be sent immediately to the provided URL.
If the response code is not 2XX or the request ended with a connection error, the app will try to send again up to 10 times.
The first retry will be after 10 seconds, later wait time will increase exponentially.
If the phone is not connected to the internet, the app will wait for the connection before the next attempt.

Optional extras: match senders with a regular expression, filter by message text, sign requests with HMAC-SHA-256, keep messages that failed to deliver for a manual retry, send a periodic heartbeat ping for monitoring, forward to local-network endpoints without internet, and back up / restore your forwarding rules as a JSON file.