This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Frostmailer
Cold email inboxes with an API, MCP and managed rotation
Cold email infrastructure for agencies, B2B teams and developers. Azure tenants at €30 a month with acom domain and up to 100 inboxes included, plus Google Workspace from €2.50 an inbox. DNS and warm-up done, delivered in 10 to 24 hours. Order and manage everything through our REST API or MCP server, straight from Claude Code or Cursor. Managed Rotation swaps in fresh infrastructure every 6 weeks so your sending never decays. Or let Build and Release set it all up for you.
Hey Product Hunt, I'm Jason, founder of Frostmailer.
Cold email infrastructure is a solved problem that still eats days. You buy domains, set up SPF, DKIM and DMARC, create mailboxes, wait for warm-up, then copy credentials into your sending tool by hand. We built Frostmailer to make all of that one order.
What makes us different:
- Built for developers and agents. Everything in the app is also in our REST API and MCP server, so you can order, check and manage inboxes from code, Claude Code or Cursor. Tell Claude "order four Azure tenants for my new client" and it does.
- Azure tenants at €30 a month with the .com domain included, each with 25, 50 or 100 inboxes.
- Google Workspace full admin from €2.50 an inbox, plus pre-warmed Azure and Google inboxes if you need to send on day one.
- Managed Rotation. Inboxes wear out over time, so we swap in fresh, warmed infrastructure every 6 weeks and your sending doesn't decay.
- If you'd rather not touch any of it, Build and Release builds the whole system, writes the copy, loads the campaign and hands it over.
Free things to try today, no card needed:
- Mailbox and domain calculator: frostmailer.com/mailbox-calculator
- Spam checker: frostmailer.com/spam-checker
- AI cold email copywriter: app.frostmailer.com/copywriter
I'll be here all day answering questions about deliverability, Azure vs Google, and how many inboxes you actually need.
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About Frostmailer on Product Hunt
“Cold email inboxes with an API, MCP and managed rotation”
Frostmailer was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #102 on the daily leaderboard. Cold email infrastructure for agencies, B2B teams and developers. Azure tenants at €30 a month with acom domain and up to 100 inboxes included, plus Google Workspace from €2.50 an inbox. DNS and warm-up done, delivered in 10 to 24 hours. Order and manage everything through our REST API or MCP server, straight from Claude Code or Cursor. Managed Rotation swaps in fresh infrastructure every 6 weeks so your sending never decays. Or let Build and Release set it all up for you.
Frostmailer was featured in Email (36.8k followers), Marketing (469.8k followers) and SaaS (44.9k followers) on Product Hunt. Together, these topics include over 153.4k products, making this a competitive space to launch in.
Who hunted Frostmailer?
Frostmailer was hunted by Frostmailer. 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.
Want to see how Frostmailer stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Frostmailer