Push-based OTP flows
Send new-message events to your auth or testing worker the moment email arrives.
Signed webhooks
PostMX can push signed webhook events when messages arrive so your app can react immediately without polling loops.
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Send new-message events to your auth or testing worker the moment email arrives.
Capture links, verify signatures, and continue your downstream flow immediately.
Route important inbox traffic into internal tools and workflows programmatically.
Use request IDs and signed payloads to debug production delivery issues quickly.
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Receive real email, verify the signature, and trigger the next step with less latency.