Hosted mailbox or relay
Full MX hosting with DKIM/SPF/DMARC, or bridge any IMAP, Microsoft Graph, or Gmail account.
v1 · self-host or hosted
AI-powered email infrastructure
Connect your domain, plug in any LLM, and let agents triage, draft, and reply to email autonomously. Multi-tenant, white-label, deliverability-first.
No credit card required · open-source core · cancel anytime
Inbox
Live- Sagent
Re: Q3 contract review
Looks good — agent drafted reply.
- sauto
Invoice #1402 paid
Payment from Northwind LLC processed.
- Mopen
Demo follow-up
Scheduled the call for Thursday at 2pm.
Trusted by teams shipping millions of emails
NorthwindAcme CoGlobexInitechUmbrellaHooli
Everything in one platform
Built for modern email teams
From transactional sends to long-running agent threads — one stack, one API, one bill.
Multi-LLM agent engine
Anthropic, OpenAI, Gemini, Mistral, Groq, Bedrock, or your own self-hosted Ollama.
Deliverability built-in
IP warmup, bounce handling, suppression lists, real-time DNS verification.
Multi-tenant ready
Isolated tenants with per-org branding, role-based access, and audit trails.
Webhooks & API first
Every event streams out as a webhook. Drive your own UI with the REST API.
Self-host or hosted
Run the open-source binary in your VPC, or use the hosted plane for zero-ops.
Multi-LLM agent
Bring your own model
Switch between providers per workspace. Compare quality and cost, fall back gracefully, route by department.
# agent.toml
provider = "anthropic"
model = "claude-opus-4"
fallback = ["openai/gpt-4.1", "groq/llama-3.3"]
tools = ["read", "draft", "send"]
Deliverability built-in
Real signal, not vanity
Track bounces, complaints, and inbox placement at the IP and domain level. Warmup curves automated.
Inbox rate
98.4%
+1.2%
Bounce
0.3%
-0.1%
Spam
0.02%
-0.01%
How it works
Live in under ten minutes
Four steps from cold start to autonomous email handling.
- 01
Connect a domain
Add MX, SPF, DKIM and DMARC. Verification runs in seconds.
- 02
Configure your agent
Pick an LLM, write a system prompt, and choose tools.
- 03
Auto-triage inbound
Mail is parsed, classified, and routed to the right queue.
- 04
Reply at machine speed
Drafts go out signed, warmed, and tracked end-to-end.
Why us
pixu.in vs the rest
| Feature | pixu.in | SendGrid | Postmark |
|---|---|---|---|
| Multi-LLM agent loop | ✓ | — | — |
| IP warmup & rotation | ✓ | ✓ | ✓ |
| Hosted IMAP bridge | ✓ | — | — |
| Self-host option | ✓ | — | — |
| White-label / multi-tenant | ✓ | — | — |
| Open source core | ✓ | — | — |
"We replaced two SaaS subscriptions and a homegrown forwarder with pixu.in. Our agent now handles 60% of inbound support without a human touch."
JM
Jamie Morales
Head of Operations · Northwind
"Self-hosted, multi-tenant, with first-class deliverability. It's the email backbone we always wanted but never had time to build ourselves."
PR
Priya Rao
Staff Engineer · Globex
Pricing
Simple, predictable plans
Start free, scale as you grow. Self-host the open-source core for unlimited usage.
Free
For solo builders kicking the tires.
$0 / month
Get started- 1 domain
- 500 emails / mo
- 1 LLM provider
- Community support
Pro
Production-ready for growing teams.
$49 / month
Start 14-day trial- 10 domains
- 50,000 emails / mo
- All LLM providers
- Webhooks & API
- Priority email support
Enterprise
For organizations with scale and compliance needs.
Custom
Contact sales- Unlimited domains
- Volume pricing
- SSO / SAML
- Dedicated IPs
- SLA & dedicated support
Ready to ship?
Spin up your first domain, plug in your favorite LLM, and watch the agent take the first email off your hands.