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Mac email app for many domains

One inbox for all your domains.

MXDeck is a native Mac email app for people who run 10, 30 or 100 domains. Every contact@ in one window, and a health check that tells you when a domain’s mail setup breaks.

Mac app, coming early 2027. No account with us, your mail stays on your Mac.

Check your domains free →

Many domains, one mess.

Thirty tabs of webmail.

Every new site gets a contact@. Soon you are logging into Roundcube five times a day, or scrolling a 40-account sidebar in Apple Mail.

DNS you set up once and never check.

SPF, DKIM and DMARC were fine at launch. Then a host changed, a record broke, and your mail started landing in spam. Nobody told you.

The one email you need is buried.

The verification link from the affiliate network sits between six “we can rank you #1 on Google” pitches.

What MXDeck does

Built for dozens of domains, not one personal account.

Unified inbox for every domain

Add 30 IMAP accounts in a minute: paste the list, MXDeck finds the servers from your MX records.

Domain health, always on

MX, SPF, DKIM, DMARC, TLS certificates and blacklists for every domain, with a red dot the day something breaks.

DNS setup that writes itself

Connect Cloudflare and MXDeck adds the MX, SPF, DKIM and DMARC records for a new domain, then checks them.

Codes and confirmations on top

Sign-up links and one-time codes get their own lane with Open and Copy buttons.

Cold pitches out of the way

“SEO services”, “redesign your website” and “guest post” offers go to their own lane, not your inbox.

The right sender, every time

Replies go out from the domain the message came to, with that domain’s signature.

Private by design

Your mail never touches our servers.

MXDeck talks straight to your mail servers. Passwords live in the macOS Keychain. There is no MXDeck account, no cloud copy of your inbox, and tracking pixels are blocked by default. The only thing our server sees is public DNS, for the health checks.

  • Affiliate marketers
  • Domain investors
  • Agencies hosting client mail
  • Indie hackers with many products
Free tool

Is your mail setup healthy? Check up to 25 domains free.

Paste your domains and see MX, SPF, DKIM, DMARC, certificates and blacklists in one table, with the exact record to fix each problem.

Run the free check →
Planned pricing, launch early 2027

Free for 3 domains. Pay when you run more.

Free

$0

forever

up to 3 domains

Pro

$6

per month, or $59 a year

up to 15 domains

Portfolio

$15

per month, or $149 a year

up to 50 domains

Agency

$29

per month

unlimited domains

Founder lifetime · first 200 people only

$79 once, Portfolio plan for life.

Up to 50 domains, every future update. Fully refundable until the app ships.

Reserve founder price
Early access

Get the beta first.

Tell us how many domains you run. We build for the answers and invite the waitlist in that order.

How many domains with email do you run?
Two emails at most before launch. Unsubscribe any time.

Questions

Is it out yet?

Not yet. We are building the Mac app now; the waitlist gets the beta first.

Which mail providers work?

Any IMAP and SMTP host: cPanel, ISPmanager, Plesk, Fastmail, iCloud, Yahoo, your own server. Gmail works with an app password at launch; one-click Google and Microsoft sign-in come later.

Do you store my emails or passwords?

No. Everything stays on your Mac, passwords in the Keychain.

How is this different from Apple Mail or Spark?

They are built for one or two personal accounts. MXDeck is built for dozens of domains: health checks, DNS setup, a lane for codes and a lane for cold pitches.

Windows or iPhone?

Mac first. Tell us on the waitlist form what else you need.

What does the free checker check?

MX, SPF, DKIM, DMARC, the TLS certificate of your mail server, reverse DNS and the main blacklists.