Each client is one mailbox you're watching. Give it a code name and a receiving address — mail forwarded to that address from the client's Proton account will show up under this code name everywhere in Beacon.
Two things still happen outside Beacon, once per client: create this address as an alias in your Namecheap Private Email account, then set that client's Proton Mail to auto-forward to it.
A service watches one client's mailbox for a pattern in the sender or subject line, and decides whether a match counts as "needs attention" (red) or "clear" (green). Click a service to see its last 3 alerts.
Example: watch Harbor's mailbox for Stripe chargebacks, call it "Stripe", mark it red.
Every alert from the last 6 months, searchable by client, service, or keyword.
Where Beacon reads mail from — the one Namecheap Private Email mailbox that every client's Proton account forwards into. The password is encrypted before it's stored; once saved, it won't be shown again here.
Everyone here gets the read-only Inbox view — no Clients, Services, or History, and no Mark Done. They log in the same way you do, and sessions expire after 24 hours.