AgentMailr
dedicated email inboxes for AI agents
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I kept running into the same problem while building AI agents: every agent that needs email ends up sharing my personal inbox or a single company domain. That breaks attribution, creates deliverability risk, and makes it impossible to test sender identities per agent.So I built AgentMailr. You call an API to create an inbox, your agent gets a unique email address, and replies route back to that specific agent. Works for both inbound (OTP parsing, reply routing) and outbound (cold email, notifications).Bring your own domain is supported so emails come from your domain, not ours. REST API and MCP server are live. Node/Python SDKs are in progress.Happy to answer questions about the architecture or how I'm handling multi-agent routing.
HN · launched Mar 15, 2026 · 7 upvotes (top 59%) · 0 views
Niche: transactional email platforms · 58 launches, 2 in the last 7 days ▼ -71% · Explore this niche →
Category and tags
- Horizontal
- Communication
- B2B
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 58 launches in transactional email platforms →
Could you build this?
Yes Lumbox/AgentMailr is an email service wrapper offering disposable inboxes, OTP regex extraction, and REST/MCP APIs over standard mail protocols (like Mailgun/SES or a self-hosted mail server).
Discussion
5 comments analyzed.
Competitors mentioned: Beads project (multi-agent harness), OpenClaw/ClawdBot
Concerns raised: Why different API instead of standard SMTP/IMAP/POP3/AWS SES, Deliverability and domain reputation with many agents on shared infrastructure, Zookeeper-type coordination problems with agent messaging
Feature requests: Broader identity layer for agents beyond just email, Fix broken GitHub link in footer
Competitors
Other products that read as similar to this one : 866 launches clear the similarity bar, closest 8 shown.
Attention rank: #422 of 867 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 135 days after the earliest competitor.
- AgentMail · ph · 2026-04-09 · 274 upvotes · similarity 0.74
- OpenMail · ph · 2026-11-04 · 203 upvotes · similarity 0.74
- Agentboxd · ph · 2026-09-29 · 1 upvotes · similarity 0.72
- InboxMail · ph · 2026-11-02 · 2 upvotes · similarity 0.71
- Agent.email · hn · 2026-05-21 · 99 upvotes · similarity 0.69
- Agent Inbox · ph · 2026-11-02 · 118 upvotes · similarity 0.66
- dearagent · github · 2026-09-11 · 25 upvotes · similarity 0.62
- FutureMail · ph · 2026-10-13 · 2 upvotes · similarity 0.62
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.