The level-2 limiter counted stored plus in-flight messages and reserved its own slot in two critical sections, so SMTP sessions that overlapped could each take the last free slot; tryAdmit now does both under one lock. A session that cannot be written no longer yields a cookie the browser would carry while every request bounced to /login. Deleting an application clears its SASL account before its registry row, matching domain delete, so a saslpasswd2 failure leaves a retryable application rather than an account that still authenticates.
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
The Deliveries list narrowed the journal only when exactly one domain was assigned, so an administrator with none or with two or more read every domain's rows. The domain scope is now an IN constraint the store query carries, a filter that states no scope matches nothing, and the domain/app query parameters are validated against the principal before the query runs.
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
Capture the 2026-08-13 review as the active plan, queue it ahead of inbound-relay, and defer SQLite migration squash to 2.x with a user_version gate.
Co-authored-by: Cursor <cursoragent@cursor.com>