MCP-native · v2.2 · agentic email GA

Email infrastructure
for the agent era.

SendFlit is the email control plane for AI agents. Scoped keys, human approval gates, and a complete audit trail — deployed in our cloud, your VPC, or fully on-prem.

Start sending free → Explore the API

Free forever plan — 3,000 emails/month · No credit card · Self-hosted free

app.sendflit.com/emails ● all systems operational

▤ Overview ✉ Emails ◈ Broadcasts ◉ Contacts ⬡ Domains 🔑 API keys ☰ Audit log

Emails

Every send — human and agent — in one governed stream

billing@acme.comInvoice #4821 — March retainersent

agent · growth-bot412 contacts matched: engaged, US/EU, opened in 14dagent

hello@acme.comWeekly digest — 8,204 recipientssent

agent · support-aiRefund confirmation — ticket #9913queued

Approval required — policy: broadcasts over 250 recipients

growth-bot requests to send “Q3 product update” to 412 contacts · matches policy gate set by admin key

Approve & sendReject

Trusted by teams that answer to security reviews

◈ NorthwindCORVUSMeridian Labs· Bastion HealthKESTREL

Platform

Built as an email platform first.
Governed for agent operation.

Everything a modern sender needs — plus the control layer agents require. One API, one audit surface, three deployment boundaries.

Agents

MCP server, 13 governed tools

Point any MCP client — Claude, Cursor, custom agents — at SendFlit. The agent can draft, segment, schedule, and analyze. It cannot exfiltrate or bypass policy.

# register once — the agent discovers everything
$ claude mcp add sendflit \
--transport http \
https://api.sendflit.com/mcp

Governance

Approval gates on policy triggers

Admins set the gates: broadcast size, new domains, external recipients. Agents draft and queue — a human approves. The decision is logged.

14:02:11gate: broadcast > 250approved

13:58:40agent key createdadmin

13:44:02domain added · acme.comadmin

Least privilege

Scoped agent keys

Send-only keys for agents. No PII export, no domain changes, no billing.

🔑 sfk_agent_9f2… · growth-bot

email:sendcontacts:read✕ billing✕ export

Deliverability

Authenticated by default

Per-domain DKIM keys sign every message. Verified before first send.

DKIM✓ signed

SPF✓ aligned

DMARC✓ enforced

Sovereignty

Your boundary, your rules

Same image, same API — run it wherever policy demands.

CloudYour VPCOn-prem

Pricing

Simple pricing, sovereign options

Start free. Upgrade when you scale. Self-host anything, free forever.

Free

forever

Emails 3,000/mo
Contacts 1,000
DKIM + audit trail ✓
MCP server ✓

Start free

Popular

Pro

$20/mo

plus usage

Emails 50,000/mo
Contacts 25,000
Approval gates ✓
Custom domains 10

Choose Pro

Scale

$80/mo

plus usage

Emails 250,000/mo
Contacts unlimited
Dedicated IP ✓
SIEM export ✓

Choose Scale

Sovereign

Enterprise

Custom

single-tenant

VPC / on-prem ✓
SSO / SAML ✓
Audit export ✓
Direct line ✓

Overage $0.80 / 1,000 emails · Self-hosted includes every feature, free, forever

FAQ

Questions enterprise teams ask

How do we stay out of spam folders?

DKIM signing on every send, SPF/DMARC verification per domain, automatic bounce suppression, RFC 8058 one-click unsubscribe, and paced daily limits — the complete set of mailbox-provider requirements, on by default.

Can SendFlit run inside our own cloud?

Yes. SendFlit ships as a single container image — deploy it in your VPC or on-prem. Data, keys, and logs never leave your boundary.

What can our AI agent actually do?

Connect any MCP client and the agent can analyze metrics, draft emails, build segments from plain English, and schedule sends — under scoped keys and approval gates you control.

Do you train models on our data?

No. The AI layer runs per-instance. In self-hosted deployments nothing ever reaches us.

Email infrastructurefor the agent era.