Post-brainstorm change after operator review: overnight-digest /
"don't ping me at 03:00, email me in the morning" use case is poorly
served by ntfy (push) and clumsy via webhook → email-gateway. SMTP joins
webhook + ntfy as the third v1 channel; Apprise stays deferred.
Spec updates:
- Decision 5 reworded: three channels in v1.
- Channel iface gains smtpChannel using net/smtp + crypto/tls. 10s
timeout vs 5s for HTTP — STARTTLS handshake + DATA over a slow link
legitimately needs the headroom.
- Migration 0014 CHECK now allows 'smtp'. New smtpConfig struct: host,
port, encryption (starttls/tls/none), username, password (AEAD), from,
to. One channel = one To-address; multi-recipient = multiple channels
(keeps failure attribution per-recipient).
- Body shape documented: hardcoded subject pattern
'[restic-manager] [<sev>] <host>: <kind>', Message-ID includes the
alert id so threading groups raised → ack → resolved cleanly. Plain
text only in v1.
- Encryption defaults to STARTTLS on 465/587; PLAIN auth over TLS, no
XOAUTH2 yet (app passwords recommended for Gmail / M365).
- Test plan adds MailHog step in the Playwright sweep.
- Non-goals expanded: HTML emails, OAuth2/XOAUTH2, multi-recipient
channels are explicitly out of v1.
Wireframe updates (_diag/p3-alerts-wireframe/wireframe.html):
- Kind picker grows from 2 cards to 3 (Webhook / Ntfy / SMTP @). SMTP
gets the --ok green colour family so it visually separates from
webhook (accent) and ntfy (warm).
- New SMTP variant section (3c): host+port+encryption row, user+pass
row, from+to row, test result, plus right-rail email shape preview
showing the RFC 5322 layout.
- Channel list grows a third row: 'overnight-digest · smtp://… →
ops-overnight@example.com'.
steve
518c29ddb3