Real mailboxes on all your domains for $5 a month, flat: up to 50 domains, 100 mailboxes and 25 GB. Ask Claude for hello@yourdomain through the MCP server, or use the CLI or API. Plainmail writes the MX, SPF, DKIM and DMARC records at Cloudflare, Vercel or Porkbun, checks them and creates the mailbox. It's a normal IMAP/SMTP account, so it sits in Apple Mail, the Gmail app, Outlook or Thunderbird. Built for mail between people, not bulk mail.
Every domain I bought for a side project ended up with no email address. Per-user plans charge for every inbox on every domain, and the DNS (MX, SPF, DKIM, DMARC) was always the step I put off.
Writes the mail records at Cloudflare, Vercel or Porkbun (anywhere else, it gives you the exact records and checks them)
Creates a real IMAP/SMTP mailbox you add to Apple Mail, the Gmail app, Outlook or Thunderbird
Sends through Amazon SES with SPF, DKIM and DMARC passing
One plan: $5 a month for up to 50 domains and 100 mailboxes. No per-domain or per-mailbox fees. You sign up with GitHub and can cancel anytime.
It's for replying to users and writing to people, not newsletters or cold outreach. New accounts start at 50 sends a day to keep everyone's delivery clean.
I'd love to hear where setup gets stuck for you, especially if your DNS lives somewhere other than those three.
$5 flat for 50 domains is great for agency life, every client project gets a domain and nobody sets up email until launch week 😅 can i give a client access to just their own mailbox without them seeing the rest
About Plainmail on Product Hunt
“Real email on every domain you own, for $5 a month flat”
Plainmail launched on Product Hunt on November 6th, 2026 and earned 66 upvotes and 3 comments, placing #31 on the daily leaderboard. Real mailboxes on all your domains for $5 a month, flat: up to 50 domains, 100 mailboxes and 25 GB. Ask Claude for hello@yourdomain through the MCP server, or use the CLI or API. Plainmail writes the MX, SPF, DKIM and DMARC records at Cloudflare, Vercel or Porkbun, checks them and creates the mailbox. It's a normal IMAP/SMTP account, so it sits in Apple Mail, the Gmail app, Outlook or Thunderbird. Built for mail between people, not bulk mail.
Plainmail was featured in Email (36.8k followers), Developer Tools (522.6k followers) and Artificial Intelligence (483k followers) on Product Hunt. Together, these topics include over 236k products, making this a competitive space to launch in.
Who hunted Plainmail?
Plainmail was hunted by Joey Dafforn. 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 Plainmail stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Joey Dafforn
Hey Product Hunt 👋
Every domain I bought for a side project ended up with no email address. Per-user plans charge for every inbox on every domain, and the DNS (MX, SPF, DKIM, DMARC) was always the step I put off.
So I built Plainmail. You tell your agent "Set up hello@mynewapp.com on Plainmail", or run "plainmail add hello@mynewapp.com", and it:
Writes the mail records at Cloudflare, Vercel or Porkbun (anywhere else, it gives you the exact records and checks them)
Creates a real IMAP/SMTP mailbox you add to Apple Mail, the Gmail app, Outlook or Thunderbird
Sends through Amazon SES with SPF, DKIM and DMARC passing
One plan: $5 a month for up to 50 domains and 100 mailboxes. No per-domain or per-mailbox fees. You sign up with GitHub and can cancel anytime.
It's for replying to users and writing to people, not newsletters or cold outreach. New accounts start at 50 sends a day to keep everyone's delivery clean.
I'd love to hear where setup gets stuck for you, especially if your DNS lives somewhere other than those three.