Your agents sign up for tools, receive verification codes and reply to customers, mostly from your Gmail or a shared sending pool where one bad actor gets everyone flagged. OpenMail gives every AI agent its own inbox on your domain with its own sending reputation, for one API call each. Incoming mail reaches your code over webhook or WebSocket, attachments arrive as text, and there's a hosted MCP server and a Hermes plugin. Built and hosted in the EU, free for 3 inboxes.
Hi Product Hunt, Jokūbas here, co-founder of OpenMail with @efemeralizacija .
We started in March because every agent we saw was using a borrowed email address. It signed up for tools and answered customers from someone's Gmail, or from a shared sending domain where one bad tenant got everyone's mail flagged. That falls apart once you run more than a few agents, and faster when the agents belong to your customers.
OpenMail gives each agent its own inbox: a real address on your domain, inbound delivered to your code over webhook or WebSocket, attachments turned into text your model can read, and a sending reputation that belongs to that inbox alone, so one agent misbehaving doesn't take the others down with it. There's a hosted MCP server and a Hermes Agent plugin, and all of it runs in the EU.
Most of this year went into receiving and keeping tenants apart: isolation and abuse containment, the part that never makes it into a demo video and that you need by your second customer.
Launch-day offer: make an account today and enter Launch2026 in billing before Friday 6 November for three months of Pro. The free tier is 3 inboxes and 3,000 emails a month either way.
If you've built something that needs email, tell me what broke with your current setup; that is what we build next. And ask the hard questions about deliverability, abuse and pricing. Armandas and I are here all day and will answer every one, with numbers where we have them.
OpenMail launched on Product Hunt on November 4th, 2026 and earned 161 upvotes and 33 comments, placing #4 on the daily leaderboard. Your agents sign up for tools, receive verification codes and reply to customers, mostly from your Gmail or a shared sending pool where one bad actor gets everyone flagged. OpenMail gives every AI agent its own inbox on your domain with its own sending reputation, for one API call each. Incoming mail reaches your code over webhook or WebSocket, attachments arrive as text, and there's a hosted MCP server and a Hermes plugin. Built and hosted in the EU, free for 3 inboxes.
On the analytics side, OpenMail competes within Email, Developer Tools and Artificial Intelligence — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how OpenMail performed against the three products that launched closest to it on the same day.
Who hunted OpenMail?
OpenMail was hunted by André J. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of OpenMail including community comment highlights and product details, visit the product overview.
André J
Hi Product Hunt, Jokūbas here, co-founder of OpenMail with @efemeralizacija .
We started in March because every agent we saw was using a borrowed email address. It signed up for tools and answered customers from someone's Gmail, or from a shared sending domain where one bad tenant got everyone's mail flagged. That falls apart once you run more than a few agents, and faster when the agents belong to your customers.
OpenMail gives each agent its own inbox: a real address on your domain, inbound delivered to your code over webhook or WebSocket, attachments turned into text your model can read, and a sending reputation that belongs to that inbox alone, so one agent misbehaving doesn't take the others down with it. There's a hosted MCP server and a Hermes Agent plugin, and all of it runs in the EU.
Most of this year went into receiving and keeping tenants apart: isolation and abuse containment, the part that never makes it into a demo video and that you need by your second customer.
Launch-day offer: make an account today and enter Launch2026 in billing before Friday 6 November for three months of Pro. The free tier is 3 inboxes and 3,000 emails a month either way.
If you've built something that needs email, tell me what broke with your current setup; that is what we build next.
And ask the hard questions about deliverability, abuse and pricing. Armandas and I are here all day and will answer every one, with numbers where we have them.
Docs: docs.openmail.sh. Thanks for having a look.