About SignalLanding
Primary Inbox Placement & Revenue Reach — engineered, not hoped for.
Silent spam quarantine doesn’t page Slack. It quietly removes ~30% of volume from primary. Sentinel makes that failure visible — then ships the paste-ready fix.
Why the name
Signal. Landing. No noise tax.
- Signal
- Authenticated mail that reaches primary — the only inbox that books meetings.
- Landing
- Placement, not a marketing page: SPF under the ceiling, DKIM aligned, DMARC enforced.
- No noise tax
- No seats, no monitoring retainer, no console takeover. Day-1 TXT, then Sentinel. Paste-ready records.
What we are not
- Not a deliverability SaaS retainer
- Not a sequencer seat tax
- Not a vendor in your mail path
What we ship
- Signal Sentinel · $49/mo autonomous firewall
- Incident Patch · $99 once per domain (rescue)
- Sentinel Fleet · $149/mo · ≤10 domains
Ready to stop the silent spam leak?
Run the free domain scan, or go straight to pricing.