What happens if the customer's webhook URL goes down?

We have a 24-hour failsafe that should maintain the webhook URL.

When handling any short-term outages we use a progressive backoff scheme for retrying webhook events. If your webhook handling endpoint goes down for less than 24 hours, you can rely on the EasyPost system to natively retry your webhook event to ensure that it gets delivered.

Due to asynchronicity and ordering concerns, webhooks delivered after long delays may be unreliable; for long-term outages, we recommend retrieving the necessary data from our API directly, using a combination of show and index endpoints as appropriate for your use case.

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