jcoffey-dev
a24ed3b60a
Deliverability spec (inbuxa-drafts specs/deliverability.md), the server side. Every node that sends mail checks itself once a day, at its own minute in the first hour (UTC), and when an administrator asks: - its outgoing addresses (the connection strategy's, or what its EHLO name resolves to), their reverse DNS and whether it resolves back, and nine blocklists, read by each list's own codes so a refused query is never taken for a listing (DL-1 to DL-6); - for every domain: SPF for each address, each DKIM key (by signing a message that's never sent and verifying it as a receiver would), DMARC, the MTA-STS policy against the MX, TLS reporting, and the domain blocklists (DL-7 to DL-12); - whether it holds a certificate for its EHLO and MX names (DL-13). It keeps one report per node, facts only; the console grades them. - inbuxa:DeliverabilityReport: /get, and a create that asks every node to check now, broadcast as DeliverabilityCheck (DL-15). A tenant administrator gets their own domains only (DL-20). - inbuxa:DeliverabilitySettings: which built-in lists are left out, and the lists themselves (DL-6). - sysDeliverabilityGet, sysDeliverabilityUpdate, sysDeliverabilityCheck; a tenant ceiling always turns the last two off.