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Sendmux API
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Schema
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Billing
3
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1
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7
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Mailbox API
52
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Webhooks
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get
/webhooks
List webhook subscriptions
post
/webhooks
Create a webhook subscription
get
/webhooks/{public_id}
Get a webhook subscription
delete
/webhooks/{public_id}
Delete a webhook subscription
patch
/webhooks/{public_id}
Update a webhook subscription
get
/webhooks/{public_id}/deliveries
List webhook delivery attempts
get
/webhooks/{public_id}/deliveries/{delivery_id}/payload
Get a webhook delivery payload
post
/webhooks/{public_id}/rotate-secret
Rotate the signing secret
post
/webhooks/{public_id}/test
Send a synthetic test event
Webhooks
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Changes to Get a webhook subscription
get
/webhooks/{public_id}
Sep 9, 2026
7807ce923952
Revision changes
info
the endpoint scheme security
oauth2
was added to the API