Launching today

Nitrosend
Email for AI agents. They sign up, send and reply.
101 followers
Email for AI agents. They sign up, send and reply.
101 followers
Nitrosend is full-stack email built for AI agents. Point any agent at nitrosend.com/SKILL.md and it signs itself up, onboards, connects your domain and sends. Live today: marketing and transactional email, real inboxes for agents on your own domain (beta, by request), and 1-1 customer replies with human escalation. Coming soon: personalised outreach run by your agent. In development: goal-based agentic marketing. Humans approve. Agents operate.





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Nitrosend
Hey Product Hunt, George here 👋🏻
Nitrosend came out of running Obooko (producthunt.com/products/obooko, #2 Product of the Day here in February). Running a free ebook platform with 840,000 readers on its list, entirely through an AI agent, convinced me the dashboard era of email is done. It's also my third email company: SmartrMail (acquired 2022) and Sendicate before it, with six billion emails sent between them.
Six weeks ago we launched Nitrosend as headless email you run from Claude or Codex instead of a UI. Today it goes further: the agent gets an inbox, and get send for itself. Point any agent at nitrosend.com/SKILL.md and it signs up, connects your domain, sorts billing and sends its first email. no human required.
The bit I'm proudest of is Agent Inboxes (beta): real addresses for your agents on the domain you own, created BY your agent, like ernest@yourcompany.com, sylvia@yourcompany.com. They send, receive and hold 1-1 conversations with your customers, and escalate to a human when it matters. Gmail actively fights this. we built the place where it's native. Because very soon this will be table stakes for your agent, so we're shipping it now.
Coming real soon: Agentic Outreach, where your agent researches prospects, writes personally and works the replies. Get a look alike audience from your current customer list, zoom in on your ICP, give them personalised messaging. No start up founder I know likes doing spray and pray outbound, but some still do it as the tools aren't good enough to really make it relevant. We're solving that.
In development: set a goal for your brand's email and Nitrosend does the rest.
Agentic signup and onboarding are shipped, headless full stack newsletters, flows, transactional email all live sending and delighting our first users (including me on Obooko!). Agent Inboxes are beta by request (ask in app and we can turn it on for you), Outreach is coming soon, goal-based is in dev.
Super excited to ship this, ask any question in the comments!
Love the idea - i) Is it visible on the receiving end that its agentic? ii) i it EU compliant i.e. opt out options per default ?
Nitrosend
@nikolaos_chr i) Nope, nothing on the receiving end flags it as agentic. It's a standard email sent from whatever address you set up on your own domain, same as if you'd written it in Gmail. ii) Yep, GDPR compliant, and unsubscribe and opt-out is on by default.
Congrats @gthartley for the launch 🙌 love the target audience lookalike concept for outbound, qq how do you handle privacy and security for AI-managed conversations?
Nitrosend
@priya_kushwaha1 Thanks Priya! On privacy: the agent only sees what you scope it to. Access is per-brand via MCP or API keys, your contact data never trains anything, and sends have approval gates by default so nothing goes out to a list without a human saying so. we've even shipped an optional safe mode if people don't want their agent to be able to do any bulk sends (requires a human clicking final send button)
The beta inboxes on your own domain worry me. A wrong 1-1 customer reply now comes from the company's real domain, so the blast radius lands on the sender, not Nitrosend
Nitrosend
@oleksandr_knyga yes guardrails are important, and you decide how much autonomy you give to your agents on email out, if you're worried you can set it to draft only (human approve). many of our current users are running outbound email already on other tools (a lot using their own domains), but want it better targeted and more personalised. that's what we're aiming at with this
The "agent points at SKILL.md, signs itself up and connects the domain" onboarding is slick, but the thing I'd test first is deliverability once an agent is the one hitting send. When an agent ramps a fresh domain, does Nitrosend enforce its own warmup and rate limits (plus SPF/DKIM/DMARC verification) before it'll send at volume, or can an agent torch a new domain's reputation on day one? That guardrail is what would make me comfortable letting an agent operate unattended.
VIPKID
Tried it out and sent an email from Claude in about 3 minutes. Pretty useful, I'm not a fan of logging into a clunky dashboard just to send an email when everything else is via API/MCP.
Nitrosend
@jgdeutsch love that Jeff. 3 mins though, we gotta improve those numbers hahah. And yeah, who needs dusty UIs these days?!
@jgdeutsch @gthartley I think you should add features that make a user not even feel the time they spend there, because if I have to login on a dashboard just for my AI agent to send an email instead of doing it proactively in the background, it gets annoying. Love the vision though, but still needs some more planning.
Nitrosend
@jgdeutsch @limpho_mofolo that's exactly the direction we're going. The dashboard should be the fallback, not the main thing. Your agent already has full access via MCP, so it can draft, send and manage campaigns in the background without you logging in at all. The proactive stuff (agent flags what needs you, handles the rest) is what we're building towards.
Finally a sane way to let agents handle email without me babysitting every send. Pointed one at the SKILL.md file and it had my domain sending in minutes, which honestly surprised me.
Nitrosend
@cemreb6dj amazing, love to hear that!! thanks for the early support