Choosing events meant a flat multi-select over 649 event types. Every
form field that takes a set of EventType (webhooks, tracers) now gets a
picker:
- the events grouped by category, named in words (Sign-in, Outgoing
delivery, Security…), each group with a switch for all of it;
- a search that reads names, labels, explanations and group names;
- each event's label, name and the server's explanation;
- common picks: delivery results, failed sign-ins and bans, alerts,
spam verdicts and certificates.
Monitoring › Webhooks opens with what a webhook receives: the JSON
shape the server posts ({events: [{id, createdAt, type, data}]}), how
X-Signature is computed (HMAC-SHA256 of the raw body, base64), and how
to see one arrive. There's no "send test": the server has no call for
it, and posting from the browser wouldn't test the server.