Try it free
Try it free

Does MailMate work on macOS 28?

Short answer: no, not on its own. According to Homebrew’s package data (checked October 5, 2026), MailMate is Intel-only and its current download has no Apple silicon build. Apple says Intel-only apps stop running on Apple silicon Macs after macOS 27, apart from some older games. Keep86 is built to keep apps like this running, but we haven’t tested MailMate yet.

Key facts

Architecture
Intel-only · according to Homebrew’s package data, checked October 5, 2026
Native Apple silicon version
None listed
Keep86 status
Not tested yet
Versions
  • 5673 — Intel-only
Homebrew package
mailmate · version 5673 · 321 installs in the last 365 days
Website
freron.com
Last verified

IMAP email client

Your options

  • Keep the version you own with Keep86: it runs in the hidden Keep86 virtual Mac (macOS 27 with Rosetta) and opens from your Dock as before. How it works
  • Keep this Mac on macOS 27 for now. Note that a new Mac will come with macOS 28 or later.
  • Check your copy: select it in Finder, choose File › Get Info and look at “Kind”. “Application (Intel)” means Intel-only.

Questions about MailMate

Does MailMate work on Apple silicon?

Only through Rosetta 2. MailMate is Intel-only: an Apple silicon Mac runs it by translating its Intel code with Rosetta 2, which Apple supports in full until macOS 27.

Does MailMate need Rosetta 2?

Yes, on every Apple silicon Mac. Apple has said that from macOS 28 Rosetta remains only for some older games, so Intel-only apps like MailMate stop opening.

How can I keep using MailMate after macOS 28?

Stay on macOS 27 on this Mac, switch to an alternative, or run MailMate in a macOS 27 virtual machine (UTM, VirtualBuddy, Parallels). Keep86 runs that virtual Mac hidden and shows the app’s windows on your desktop; see the test status above.

Sources

  1. Homebrew Homebrew cask “mailmate” 5673 requires Rosetta (Intel-only build) · checked October 5, 2026

Something wrong or out of date? Let us know

Guides

  • macOS 27 Golden Gate: the last macOS for Intel apps

    macOS 27 Golden Gate came out on 14 September 2026. It runs only on Apple silicon and is the last macOS that runs Intel-only apps through Rosetta.

    3 min read

  • macOS 28 and Rosetta: what stops working

    Apple ends Rosetta for apps after macOS 27. What stops working on Apple silicon Macs with macOS 28, what keeps working and what to do now — with sources.

    3 min read

  • How to find Intel-only apps on your Mac

    Four ways to see which of your Mac apps are Intel-only and will stop working in macOS 28 — Finder, System Information, Activity Monitor and Terminal.

    2 min read

  • How to run Intel apps on Apple silicon after macOS 28

    Your options once Rosetta is gone: a native version, an alternative, staying on macOS 27, or a VM — UTM, VirtualBuddy, Parallels and Keep86 compared.

    3 min read

All 12 guides

App names are trademarks of their owners and are used only to describe compatibility. Keep86 is not affiliated with the developers of these apps. Architecture data partly from Homebrew (formulae.brew.sh), used under the BSD 2-Clause licence.