About OpenMail: email infrastructure for AI agents, built in Vilnius | OpenMail

Founded 2026

Location Vilnius, Lithuania

Data residency EU, all plans

Legal entity UAB All Systems Operational

About OpenMail

OpenMail is email infrastructure for AI agents. It gives each agent its own inbox and address through an API, delivers inbound mail as structured data, threads replies automatically, and keeps every agent's sending reputation separate from the others. The company, UAB All Systems Operational, was founded in 2026 in Vilnius, Lithuania, by Jokūbas Vaičiulis and Armandas Vaičikauskas, and operates from the EU with EU data residency on all plans.

What we build

An agent that can browse, read, write and decide still needs a human to carry its output into the world unless it has an address of its own. OpenMail removes that constraint: one API call creates an inbox, a webhook or WebSocket delivers what arrives with attachments already parsed to text, and the agent answers in thread. Platforms that run many agents or many customers use pods to keep tenants isolated, so one abusive tenant cannot burn the reputation of the rest.

Who uses it

Developers building agents on OpenClaw, Hermes Agent, Claude Code, LangChain and the Vercel AI SDK, and companies that give each of their customers an AI agent with its own address. Our largest deployments are platforms provisioning thousands of inboxes.

Founders

Jokūbas Vaičiulis
Co-founder
Helped 100+ startups raise. Now building one: email infrastructure for billions of AI agents.

Armandas Vaičikauskas
Co-founder
Shipped software for 100M+ users. Now building email infrastructure for billions of AI agents.

A team who built infrastructure at

Backed by

Company & links

GitHub github.com/openmailsh
npm @openmail/cli
Docs docs.openmail.sh
Press kit /press
Contact support@openmail.to

OpenMail is not related to HP OpenMail, the discontinued Hewlett-Packard groupware product, to openmail.cn, a Chinese email marketing platform, or to any other software that shares the name.

Every AI agent deserves its own inbox.

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