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E2a

Open-source email gateway for AI agents

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We were building an agent system and wanted email as a trigger. We decided to take it out and made it a standalone service.The primary email features we wanted and used for our own agent system:1. Email threading stays consistent with agent conversation threading2. Human in the loop review for outbound emails (especially during testing phase)3. Quick onboarding/offboarding email addresses for agents within minutes4. Websocket for local agents and at-least-once webhook delivery for Cloud agentsNot yet: DMARC (only SPF/DKIM today), scoped API keys, HA/multi-region (single VM + single Postgres), app-layer email data encryption, compliance attestations (SOC 2/HIPAA).GitHub: https://github.com/Mnexa-AI/e2aHosted: https://e2a.dev/Appreciate any feedback / contributions.

HN · launched May 11, 2026 · 48 upvotes (top 16%) · 0 views

Niche: ai and productivity email clients · 126 launches, 8 in the last 7 days ▼ -43% · Explore this niche →

Category and tags
  • Horizontal
  • Communication
  • Developer
  • AI-native
  • Hobby / open-source project

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More like this: all 126 launches in ai and productivity email clients →

Could you build this?

Yes An email gateway that parses inbound webhooks (via SendGrid/Postmark/Mailgun), tracks thread headers (Message-ID/In-Reply-To), and forwards them to an agent system is straightforward CRUD and API integration.

Discussion

3 comments analyzed.

Competitors mentioned: mcp_agent_mail - email-based multi-agent workflow coordination, nornweave - Inbox-as-a-Service for AI agents

Competitors

Other products that read as similar to this one : 416 launches clear the similarity bar, closest 8 shown.

Attention rank: #99 of 417 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 192 days after the earliest competitor.

  • AgentMail · ph · 2026-04-09 · 274 upvotes · similarity 0.60
  • Agent.email · hn · 2026-05-21 · 99 upvotes · similarity 0.59
  • Agent Inbox · ph · 2026-11-02 · 118 upvotes · similarity 0.56
  • OpenMail · ph · 2026-11-04 · 203 upvotes · similarity 0.56
  • AgentMailr · hn · 2026-03-15 · 7 upvotes · similarity 0.52
  • Agentboxd · ph · 2026-09-29 · 1 upvotes · similarity 0.52
  • Cloudflare Email Service · ph · 2026-04-17 · 167 upvotes · similarity 0.50
  • CapiMail · ph · 2026-11-13 · 3 upvotes · similarity 0.50

Related data

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.