The rule name goes into the Subject header, and EmailMessage refuses a
header holding a line break, so the whole email failed. The web form can't
enter one but MCP takes any string. The subject now folds whitespace.
Found by the new From-fallback test in CI run 8349.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
#5064 "Notifications that arrive":
- render_webhook: alert.* is escaped to sit inside a JSON string (a quote
or newline in a rule name no longer breaks the body); raw.* is the plain
value for |tojson; a missing value reads "no data"; the template runs
sandboxed and the body is checked to be JSON before it is sent.
- SMTP: 15s timeout; port 465 connects with implicit TLS, otherwise the
box means STARTTLS; a From address setting (falls back to the username).
- A webhook error no longer carries the URL, which is a secret.
- Settings → Notifications: "Send a test email" / "Send a test webhook"
send a sample alert with the form's values (unsaved) and show the result
and the body that went out; template help names alert.* and raw.*.
- Notification audits go through audit_request; the test send is audited
as settings.notification.tested, with the channel and outcome only.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>