Feature

Per-agent reputation graph.

Each agent has its own score. It's built from real replies, bounces, and complaints. You can query it. You can act on it. It doesn't bleed across your other agents.

Every agent gets its own reputation score, built from real engagement — not synthetic warmup networks. Reputation is isolated per workspace: a banned sender loses verified-agent status across all your agents, enforced on every send.

Signals

What feeds the score.

  • Reply rate

    Real engagement, not synthetic warmup. Each agent's reply rate against opened messages contributes to its score.

  • Bounce + complaint rate

    Per-sender complaint cron monitors at 15-min intervals. Crossing 0.3% auto-suspends; the score drops permanently for the sender identity.

  • Suppression hits

    Every unsubscribe or complaint suppresses the sender across your workspace — enforced on every send from any of your agents.

  • Domain age + DNS posture

    DKIM/SPF/DMARC alignment + domain registration age contribute to the base score. New domains earn reputation over the ~14-day warmup window.

  • Recipient-side verification lookups

    Phase 2 — recipients can look up an agent's reputation to confirm a sender is a real verified agent. Lookup volume contributes to the reputation signal.

Query it

Customers see what we see.

mails.get_reputation
// Your agent's reputation score, built from real engagement
const rep = await mails.reputation.get("sarah");

// {
//   agent_id: "sarah",
//   reputation: 0.91,             // 0-1 score
//   send_count_30d: 4120,
//   bounce_count_30d: 7,
//   complaint_count_30d: 1,
//   reply_count_30d: 380
// }

// Inbound events carry the sender's reputation — refuse to act on
// low-reputation senders before your classifier even runs
agent.onReply((event) => {
  if (event.sender_reputation < 0.4) {
    return mails.suppress(event.from);
  }
  // ...
});
Closed beta

Built for agents.
Self-serve in minutes.

Public API opens Q3 2026. Drop ~6 lines into your agent and ship.

npmpnpmbunpip
$ npm install @mailsai/sdk
Packages publish with cohort 1 · Q3 2026