secret is never returned (has_secret indicates whether one is set). An id that does not exist or belongs to another org → 404 not_found. created_at/updated_at are null for subscriptions created in the dashboard before timestamps existed.curl --location 'https://api.mailfloss.com/v1/webhooks/' \
--header 'Authorization: Bearer <token>'{
"id": "aBcDeFgHiJkLmNoPq",
"name": "CRM sync — undeliverables",
"url": "https://example.com/mailfloss/webhook",
"events": [
"status-undeliverable",
"job-finished"
],
"data_source": "all",
"active": true,
"has_secret": true,
"created_at": "2026-07-10T04:12:00.000Z",
"updated_at": "2026-07-10T04:12:00.000Z"
}