Covers PMG's self-service quarantine portal (ticket-based sign-in,
release, personal whitelist) and the on-demand link request for
customers who need something released immediately rather than
waiting for the daily digest. Cross-linked from the existing
spam-filtering-changes migration notice.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VXgBxaVABantBF8twz4LpU
