# AgentMail, Inc. (B20250206733)

> AgentMail, Inc. is a San Francisco-based YC Summer 2025 startup building an API-first email infrastructure and inbox platform that lets AI agents create, send, receive, search, and manage threaded email autonomously.

Company page on Leadbay: https://mad-max.leadbay.ai/company/agentmail.to · loaded 2026-10-28

## At a glance

- Website: https://agentmail.to
- Team based in: San Francisco (ycombinator.com and 3 more)
- Founded: 2025 (ycombinator.com and 1 more; Sources disagree: 2024 (agentmail.to, a company database))
- Founders: Haakam Aujla, Michael Kim, Adi Singh
- Industry: Technology, Information and Internet
- Employees: 10 (employees and founders, investors not counted; ycombinator.com; Sources disagree: 8 (ycombinator.com), 13 (agentmail.to, a company database))
- Total funding: $6.6M (agentmail.to and 1 more)
- Backed by: General Catalyst, Y Combinator, Phosphor Capital, Paul Graham, Dharmesh Shah, Paul Copplestone, Karim Atiyeh, Taro Fukuyama, Yuri Sagalov (Partner at General Catalyst)
- Seen in its site's code: Next.js (/_next/static/) (read 2026-10-30)
- Email: contact@agentmail.cc
- Address: 777 TENNESSEE STREET
SAN FRANCISCO, CA 94107

## What it sells, to whom

- AgentMail, Inc. is a San Francisco-based YC Summer 2025 startup building an API-first email infrastructure and inbox platform that lets AI agents create, send, receive, search, and manage threaded email autonomously. ([agentmail.to](https://www.agentmail.to/), [agentmail.to](https://www.agentmail.to/llms.txt), [globenewswire.com](https://www.globenewswire.com/news-release/2026/03/10/3253159/0/en/agentmail-raises-6m-led-by-general-catalyst-to-build-the-first-email-provider-for-ai-agents.html))

## Why it stands out

- Y Combinator Summer 2025 batch company (YC listing; not a conventional award). ([ycombinator.com](https://www.ycombinator.com/companies/agentmail), [ycombinator.com](https://www.ycombinator.com/launches/NvQ-agentmail-the-api-first-email-provider-for-ai-agents))
- Competes with: Traditional transactional email/API providers: SendGrid, Resend, Amazon SES, Mailgun, and Postmark., InboxKit (alternative agent/mailbox infrastructure)., Indirectly, Gmail and Microsoft Outlook/365, which AgentMail positions itself against for programmatic agent inbox provisioning. ([agentmail.to](https://www.agentmail.to/blog/best-email-api-for-ai-agents-2026), [inboxkit.com](https://www.inboxkit.com/compare/agentmail), [startupfortune.com](https://startupfortune.com/giving-your-ai-agent-an-email-address-is-now-a-real-product-category/))

## Products and services

- **AgentMail email inbox API**: programmatic inbox creation, sending/receiving, replies, threading, search, attachments, and persistent message history. ([agentmail.to](https://agentmail.to), [agentmail.to](https://www.agentmail.to/), [agentmail.to](https://www.agentmail.to/llms.txt))
- **Developer integrations**: REST API, Python and TypeScript SDKs, webhooks, WebSockets, IMAP, SMTP, and MCP server. ([agentmail.to](https://www.agentmail.to/), [agentmail.to](https://www.agentmail.to/llms.txt), [ycombinator.com](https://www.ycombinator.com/launches/NvQ-agentmail-the-api-first-email-provider-for-ai-agents))
- **Identity and deliverability features**: custom domains plus SPF, DKIM, and DMARC support; API permissions and agent guardrails. ([agentmail.to](https://www.agentmail.to/), [agentmail.to](https://www.agentmail.to/llms.txt), [ycombinator.com](https://www.ycombinator.com/launches/NvQ-agentmail-the-api-first-email-provider-for-ai-agents))
- **Pods**: multi-tenant inbox infrastructure for platform builders and customer/project isolation. ([agentmail.to](https://www.agentmail.to/), [agentmail.to](https://www.agentmail.to/llms.txt), [ycombinator.com](https://www.ycombinator.com/launches/NvQ-agentmail-the-api-first-email-provider-for-ai-agents))
- Free tier publicly described as 3 inboxes and 3,000 emails per month, with no credit card required. ([agentmail.to](https://www.agentmail.to/), [agentmail.to](https://www.agentmail.to/llms.txt), [ycombinator.com](https://www.ycombinator.com/launches/NvQ-agentmail-the-api-first-email-provider-for-ai-agents))

## Customers and markets

- **Customers**: More than 500 B2B customers as reported by TechCrunch in March 2026., Named customer/use-case examples: Locus Founder and DoAnything; other publicly reported early customers include Replit, Factory, Salient, Eve, Alchemy, Polsia, and Prime Intellect (secondary-source report). ([techcrunch.com](https://techcrunch.com/2026/03/10/agentmail-raises-6m-to-build-an-email-service-for-ai-agents/), [agentmail.to](https://www.agentmail.to/blog/how-locus-runs-ai-cofounders-with-agentmail), [startupfortune.com](https://startupfortune.com/giving-your-ai-agent-an-email-address-is-now-a-real-product-category/))
- **Markets**: AI-agent developers and agent platforms needing programmatic, persistent inboxes. ([cryptorank.io](https://cryptorank.io/news/feed/75e9b-agentmail-ai-email-funding-general-catalyst), [zerogtalent.com](https://zerogtalent.com/blog/agentmail-s-6m-funding-marks-the-first-dedicated-email-infrastructure-for-ai-agents), [thenextweb.com](https://thenextweb.com/news/agentmail-raises-6m-seed-ai-agent-email-inboxes))
- **Markets**: Enterprise and B2B workflows in procurement, logistics/supply chain, finance, loan collections, marketing technology, customer support, and operations. ([cryptorank.io](https://cryptorank.io/news/feed/75e9b-agentmail-ai-email-funding-general-catalyst), [zerogtalent.com](https://zerogtalent.com/blog/agentmail-s-6m-funding-marks-the-first-dedicated-email-infrastructure-for-ai-agents), [thenextweb.com](https://thenextweb.com/news/agentmail-raises-6m-seed-ai-agent-email-inboxes))

## Team

- Haakam Aujla, Founder/CEO · [LinkedIn](https://www.linkedin.com/in/haaaujla)
- Michael Kim, Founder/CTO · [LinkedIn](https://www.linkedin.com/in/hyun-michael-kim-281242220)
- Adi Singh, Founder · [LinkedIn](https://www.linkedin.com/in/adivirsingh13)

Backed by: General Catalyst, Y Combinator, Phosphor Capital, Paul Graham, Dharmesh Shah, Paul Copplestone, Karim Atiyeh, Taro Fukuyama, Yuri Sagalov

## Where to find more

- [AgentMail Pricing](https://www.agentmail.to/pricing)
- [AgentMail Blog](https://www.agentmail.to/blog)
- [Welcome](https://docs.agentmail.to/)
- [API Welcome](https://docs.agentmail.to/api-reference)
- [This page in Markdown, for agents](https://mad-max.leadbay.ai/company/agentmail.to.md)

## Decision makers

- [Haakam Aujla](https://mad-max.leadbay.ai/person/haakam-aujla--agentmail.to.md), Founder/CEO · [LinkedIn](https://www.linkedin.com/in/haaaujla)
- [Michael Kim](https://mad-max.leadbay.ai/person/michael-kim--agentmail.to.md), Founder/CTO · [LinkedIn](https://www.linkedin.com/in/hyun-michael-kim-281242220)
- [Adi Singh](https://mad-max.leadbay.ai/person/adi-singh--agentmail.to.md), Founder · [LinkedIn](https://www.linkedin.com/in/adivirsingh13)

Work emails and direct phones come with a Leadbay account: https://wow.leadbay.ai/?register=true

Where it comes from: 13 sites read (agentmail.to, engineering.agentmail.to, docs.agentmail.to, console.agentmail.to, github.com, globenewswire.com, ycombinator.com, techcrunch.com, …).

## Best angle

2026-10-28 · Headcount: Headcount up 333% in a year (1 source)

## Best way in

- LinkedIn message to Haakam Aujla: Founder/CEO · profile linked from the company's record
- LinkedIn message to Michael Kim: Founder/CTO · profile linked from the company's record

## Signals: what happened

- 2026-10-28 · Headcount: Headcount up 333% in a year (1 source: [A company database](https://agentmail.to/))
- 2026-06-19 · News: AgentMail published a customer case study describing Locus Founder using AgentMail inboxes for autonomous business agents (4 sources: [techcrunch.com](https://techcrunch.com/2026/03/10/agentmail-raises-6m-to-build-an-email-service-for-ai-agents/), [globenewswire.com](https://www.globenewswire.com/news-release/2026/03/10/3253159/0/en/agentmail-raises-6m-led-by-general-catalyst-to-build-the-first-email-provider-for-ai-agents.html), [agentmail.to](https://www.agentmail.to/blog/agentmail-seed-launch))
- 2026-05-04 · Product: AgentMail announced Pods, its multi-tenant email-infrastructure primitive (4 sources: [techcrunch.com](https://techcrunch.com/2026/03/10/agentmail-raises-6m-to-build-an-email-service-for-ai-agents/), [globenewswire.com](https://www.globenewswire.com/news-release/2026/03/10/3253159/0/en/agentmail-raises-6m-led-by-general-catalyst-to-build-the-first-email-provider-for-ai-agents.html), [agentmail.to](https://www.agentmail.to/blog/agentmail-seed-launch))
- 2026-03-10 · Fundraising: AgentMail announced a $6 million seed round led by General Catalyst and launched an onboarding API allowing agents to obtain email addresses without human assistance (4 sources: [techcrunch.com](https://techcrunch.com/2026/03/10/agentmail-raises-6m-to-build-an-email-service-for-ai-agents/), [globenewswire.com](https://www.globenewswire.com/news-release/2026/03/10/3253159/0/en/agentmail-raises-6m-led-by-general-catalyst-to-build-the-first-email-provider-for-ai-agents.html), [agentmail.to](https://www.agentmail.to/blog/agentmail-seed-launch))
- 2026-03-01 · News: TechCrunch reported tens of thousands of human users, hundreds of thousands of agent users, and more than 500 B2B customers (4 sources: [techcrunch.com](https://techcrunch.com/2026/03/10/agentmail-raises-6m-to-build-an-email-service-for-ai-agents/), [globenewswire.com](https://www.globenewswire.com/news-release/2026/03/10/3253159/0/en/agentmail-raises-6m-led-by-general-catalyst-to-build-the-first-email-provider-for-ai-agents.html), [agentmail.to](https://www.agentmail.to/blog/agentmail-seed-launch))

## Working on now

- Building API-first email infrastructure that gives AI agents persistent, independent inboxes for identity, authentication, two-way communication, threads, attachments, search, and real-time events.
- Expanding distribution through agent-building platforms and cloud ecosystems, especially Vercel, Telnyx, Browser Use, LiveKit, and MCP-compatible clients.
- Serving both developer/agent-platform users and enterprise deployments; reported use cases include procurement, logistics, finance, support, account provisioning, OTP/verification, and voice-agent workflows.
- Scaling toward enterprise requirements with usage-based billing, SOC 2-oriented controls, EU-region cloud, BYO-cloud, SSO, white-labeling, and dedicated IP options.
- Recent product focus includes calendars in inboxes, Domain Connect, AgentID, CLI access, MCP, and machine-to-machine payment support.

From: [Inboxes for AI Agents: Introducing AgentMail on the Vercel Marketplace | AgentMail](https://www.agentmail.to/blog/agentmail-on-vercel-marketplace), [Every AI agent that signs up for Telnyx gets an inbox | AgentMail](https://www.agentmail.to/blog/every-ai-agent-on-telnyx-gets-an-inbox), [How To Give Your Browser Use Agent an Email Inbox Using AgentMail | AgentMail](https://www.agentmail.to/blog/agentmail-browser-use-full-web-email), [AgentMail Blog](https://www.agentmail.to/blog), [Introducing Usage-Based Billing for Enterprise | AgentMail](https://www.agentmail.to/blog/usage-based-billing-enterprise)

## Summary

AgentMail, Inc. is an API-first email infrastructure provider that offers programmable, dedicated inboxes for AI agents [1][2][3]. It enables agents to send, receive, thread, and process emails autonomously without relying on human-centric providers like Gmail [4][5][6]. It sells usage-based subscriptions to developers, startups, and enterprises for agentic workflows like supply chain coordination, procurement, and loan collections [2][5][7]. Founded in 2025 by Haakam Aujla, Michael Kim, and Adi Singh, the San Francisco-based company raised $6 million in seed funding led by General Catalyst, with participation from Y Combinator, Phosphor Capital, and various angel investors [2][4][5].

[1]: https://www.agentmail.to/docs/knowledge-base/what-is-agentmail "What is AgentMail and how is it different?"
[2]: https://techcrunch.com/2026/03/10/agentmail-raises-6m-to-build-an-email-service-for-ai-agents/ "AgentMail raises $6M to build an email service for AI agents | TechCrunch"
[3]: https://www.crunchbase.com/organization/agentmail-10e0 "AgentMail - Crunchbase Company Profile & Funding"
[4]: https://www.ycombinator.com/companies/agentmail "AgentMail: Email Inboxes for AI Agents | Y Combinator"
[5]: https://thenextweb.com/news/agentmail-raises-6m-seed-ai-agent-email-inboxes "AgentMail raises $6M to give AI agents their own email inboxes"
[6]: https://www.producthunt.com/products/agentmail "AgentMail: Email Inboxes for AI Agents  | Product Hunt"
[7]: https://zerogtalent.com/blog/agentmail-s-6m-funding-marks-the-first-dedicated-email-infrastructure-for-ai-agents "AgentMail’s $6M seed builds first email service exclusively for AI agents"
[8]: https://news.ycombinator.com/item?id=46812608 "Launch HN: AgentMail (YC S25) – An API that gives agents their own email inboxes | Hacker News"

## Sources

- [AgentMail, Inc. (B20250206733)'s website](https://agentmail.to)
- [Company record, via Exa](https://agentmail.to/)
- [Inboxes for AI Agents: Introducing AgentMail on the Vercel Marketplace | AgentMail](https://www.agentmail.to/blog/agentmail-on-vercel-marketplace)
- [Every AI agent that signs up for Telnyx gets an inbox | AgentMail](https://www.agentmail.to/blog/every-ai-agent-on-telnyx-gets-an-inbox)
- [How To Give Your Browser Use Agent an Email Inbox Using AgentMail | AgentMail](https://www.agentmail.to/blog/agentmail-browser-use-full-web-email)
- [AgentMail Blog](https://www.agentmail.to/blog)
- [Introducing Usage-Based Billing for Enterprise | AgentMail](https://www.agentmail.to/blog/usage-based-billing-enterprise)
- [AgentMail Raises $6M led by General Catalyst to Build the](https://www.globenewswire.com/news-release/2026/03/10/3253159/0/en/agentmail-raises-6m-led-by-general-catalyst-to-build-the-first-email-provider-for-ai-agents.html)