Stop losing emails to spam because of broken DMARC.
We add proper ARC sealing so Gmail, ProtonMail, Outlook, and Yahoo trust every forward.
Traditional forwarders break SPF. We rewrite the sender so it always passes.
Original DKIM signatures stay intact. Our ARC chain proves they passed at origin — even after forwarding.
The missing piece. We add a perfect ARC chain so Gmail/Proton/Outlook see 100% DMARC pass — every time.
Real-time delivery status + full DMARC reports in one place.
Full visibility and control over every email that passes through your domain.
Delivery rates, top senders, daily volume, and DMARC pass rates — all in real time.
Block by email or @domain pattern. Rejected at the SMTP level before forwarding.
Proactive checks for MX, SPF, DMARC, and DKIM — catch misconfigurations before they cause bounces.
Route info@, support@, sales@ to different inboxes. Per-domain DKIM signing on Pro+.
Manage email forwarding from Claude, Cursor, or any MCP client. Full REST API with persistent API keys, OpenAPI spec, and webhook notifications.
ar_live_ keys in Settings — no expiring JWTs for integrations{
"mcpServers": {
"arc-relay": {
"url": "https://arc-relay.com/mcp",
"headers": {
"Authorization": "Bearer ar_live_your_key"
}
}
}
}Check any domain's email authentication — no account needed.
Start free. Upgrade when you need more.