ENGAGEMENT.md §6.0b assigns this repo the operator-facing half of Phase 9
(website#176 + docs#191). Two new sections, split along the line that actually
matters when somebody reports it.
"One person stopped receiving email" is the suppression case, and the three
things an operator gets wrong about it: they can still reset their password
(suppression scopes to engagement rules only, so that is the expected shape of
the problem rather than a contradiction); Not sent, Bounced and Failed in the
Send Log mean three different things and only one of them is about your
configuration; and no row at all means they were excluded before anything was
queued, by an opt-in or by the verification gate.
"Everyone stopped receiving email at once" exists to stop the wrong reflex. A
whole-deployment stop is never the suppression list — a wrong password never
suppresses anybody, only the receiving server naming a specific dead mailbox
does — and it says so before an operator starts clearing rows.
Also notes that lifting a suppression asks for the full address because
addresses are stored one way, so it reads as the privacy design rather than a
missing feature.
Co-Authored-By: Claude <noreply@anthropic.com>
