Self-hosted · $249 once · no subscription

Cold email that reaches the inbox.

Spread every campaign across warmed-up mailboxes, rotate senders and subject lines, and make each email unique. On your own server, for a one-time $249.

14-day money-back guarantee · One-command install · Free updates

Works with the mailboxes and AI tools you already use

  • Gmail
  • Outlook
  • Amazon SES
  • Mailgun
  • Any SMTP
  • Claude
  • ChatGPT
Why cold email lands in spam

Same 1,000 emails. Opposite result.

Inbox providers punish high volume from one sender and copy that repeats. Spread the load and vary every email, and the same campaign gets through.

The usual way

1 address × 1,000

Spam
  • One sender carries all the volume
  • The same subject line every time
  • Identical copy that filters spot fast

With CleanMails

20 mailboxes × 50

Inbox
  • Volume spread across warmed-up senders
  • Senders and subjects rotate
  • Spintax makes every email unique
01

Connect mailboxes

Gmail, Outlook or any SMTP/IMAP mailbox. Add as many as you like, with no per-mailbox fee.

02

Let them warm up

Built-in warmup ramps each new mailbox up over 14 days, so inbox providers learn to trust it.

03

Launch the campaign

Multi-step sequences rotate senders, subjects and copy automatically, inside your send windows.

Everything in one app

Everything a $97/month tool does. On your server.

Campaigns, mailboxes, warmup, a unified inbox and AI replies, without the monthly bill.

One inbox, with AI replies

Replies from every mailbox land in one place. AI drafts the answer with your own OpenAI or OpenRouter key.

CleanMails unified inbox showing reply threads from several mailboxes

Sender rotation

Each email goes out from the next mailbox with the next subject line.

Spintax

Write once. Every lead gets a different version.

Warmup on autopilot

New mailboxes ramp up over 14 days on their own. See every mailbox’s progress at a glance.

CleanMails warmup screen showing each mailbox and its warmup progress

Full API + MCP server

Run campaigns from your code, or let Claude and ChatGPT do it.

Multi-step campaigns

Follow-ups with delays and send windows in each lead’s time zone.

Unlimited everything

No caps on mailboxes, leads or emails from us. Only your providers set limits.

Client workspaces

A separate, white-labeled workspace for every client. Built for agencies.

“This is exactly what I was looking for.”

Real messages from people running CleanMails

Email from Adan DLC praising CleanMails for self-hosted email infrastructure
Reddit comment from nosferatu_ saying CleanMails is exactly what they were looking for
Pay once

Stop renting your cold email.

Subscription tools bill you every month. CleanMails costs the same in year three as on day one.

Total cost after 3 years

Instantly $79/mo

$2,844+

Smartlead $39/mo

$1,404+

CleanMails one time

$249

Competitor totals use the lowest plan on their public pricing pages. With CleanMails you also pay for your own VPS (from about $5 a month) and mailboxes.

Setup

Live on your server in minutes.

Any Linux VPS with 1 GB of RAM and a domain. Paste one command and the installer does the rest.

root@your-server

$ curl -fsSL https://coldmail.host/install.sh | sudo bash

Then paste your license key at /welcome and send your first campaign. Updates are one click from the admin panel.

Pricing

One price. Everything included.

No monthly fee, no per-seat charge, no upsells.

Lifetime license

$249once

Pay once. Use it on your server for as long as you like.

Buy CleanMails

14-day money-back guarantee, no questions asked.

Secure checkout by Dodo Payments. License key by email.

One license key activates one server.

Everything included

  • Unlimited mailboxes & senders
  • Unlimited leads & contacts
  • Sender & subject rotation
  • Built-in warmup
  • Spintax & multi-step campaigns
  • Unified inbox with AI replies
  • Full API + MCP server
  • Webhooks, Slack, Discord, Telegram
  • Unlimited client workspaces
  • White-label branding
  • Your server, your data
  • Free updates for life
FAQ

Questions, answered.

Something else? hello@coldmail.host

Is it really a one-time payment?

Yes. You pay $249 once and keep using it, with free updates. Your only ongoing costs are your own VPS (from about $5 a month) and the mailboxes you connect.

Will my emails land in the inbox?

CleanMails gives you what matters most for deliverability: warmup, sender and subject rotation, spintax, and volume spread across many mailboxes. Results still depend on your domains, mailbox setup and copy. No tool can rescue a burned domain.

What do I need to run it?

A Linux VPS with 1 GB of RAM and a domain name. Run the one-line installer, open your domain, paste your license key, and you are live.

Which mailboxes can I connect?

Gmail, Outlook, Amazon SES, Mailgun, or any mailbox with SMTP and IMAP. Connect as many as you need.

Is there a sending limit?

Not from us. Your volume is only limited by the providers and mailboxes you connect.

Can I use one license on several servers?

Each license key activates one server. Moving servers or need more licenses? Email hello@coldmail.host.

What if it is not for me?

Email hello@coldmail.host within 14 days of buying for a full refund. No questions asked.

Own your cold email.

$249 once. Your server, unlimited mailboxes, every feature. Send your first campaign this week.

14-day money-back guarantee