MarginMail vs Outlook for Mac: mail and calendar together, for Google accounts
Short answer: The new Outlook for Mac is free, keeps mail and calendar in one app, supports almost every provider, and adds Copilot with Microsoft 365 plans from $9.99 a month. MarginMail is a native Mac app for Gmail and Google Workspace that also keeps mail and calendar together, adds people pages and notes about what needs you, and keeps AI optional: Apple Intelligence on your Mac, or your own Claude on click. If you live in Microsoft 365, choose Outlook. If you live in Google, try MarginMail.
Last checked: October 16, 2026. Prices in USD.
At a glance
| MarginMail | Outlook for Mac (new Outlook) | |
|---|---|---|
| Price | Free during the beta | App free (ad-supported without Microsoft 365); Copilot with M365 Personal $9.99/mo, Family $12.99/mo, Premium $19.99/mo; business Copilot licensing varies |
| Platforms | Native Mac (macOS 26+); iPhone companion later | Mac, Windows, web, iOS, Android |
| Accounts | Gmail and Google Workspace, several in one unified inbox | Outlook.com, Exchange/M365, Google, iCloud, Yahoo, IMAP |
| Calendar | Built in: unanswered invites marked, A / M / D, Needs your answer list, find a time with holds | Built in, as its own module |
| What needs you | Margin notes (Follow-ups, Meetings, Requests); the Margins stack | Focused Inbox, rules, categories; Copilot can prioritize |
| People | A page per person; companies by domain | People / contacts module |
| AI | Optional. Apple Intelligence on your Mac; your own Claude on click (Write it, What’s been decided) | Copilot: draft and edit conversationally, summarize, Copilot Chat window; agentic inbox and calendar features rolling out (Windows and web first) |
| Where AI runs | Apple Intelligence on your Mac; your own Claude plan only if you opt in, on click (that conversation goes to Anthropic under your account). No MarginMail server. | Microsoft’s cloud |
| AI sends mail | Never | Reports differ on Copilot follow-ups; check your tenant’s settings |
| Vendor servers | No MarginMail server; Mac ↔ Google | Microsoft cloud (non-Microsoft accounts sync through Microsoft’s service, per widespread reports) |
Where Outlook is the better choice
- Your company runs on Microsoft 365 or Exchange. MarginMail doesn’t support Microsoft accounts yet.
- You need Windows, web or Android too.
- You want Copilot across Word, Excel and Outlook under one subscription.
- You’re mixing many providers in one app.
Where MarginMail is the better choice
- You live in Gmail or Google Workspace and want a Mac app built for it.
- You want AI that starts on your Mac and uses your own Claude only when you click, and never sends.
- You want people pages and notes about what needs you, not just a focused list.
- You want live words: type “Tuesday with Ava” and both calendars’ free times appear.
Who should choose which
Outlook for Microsoft 365 workplaces and mixed-provider power users. MarginMail for Google Workspace and Gmail people who want Outlook’s mail-plus-calendar feel in a calm, private, native Mac app.
FAQ
Is Outlook for Mac free?
Yes. The new Outlook for Mac is free; without a Microsoft 365 subscription it’s ad-supported. Copilot features come with Microsoft 365 plans (Personal is $9.99 a month as of October 2026).
Can I use Outlook for Mac with Gmail?
Yes, Outlook can add Google accounts. MarginMail is built only for Google accounts and uses the Gmail and Google Calendar APIs directly from your Mac.
What happened to legacy Outlook for Mac?
Microsoft retired Exchange Web Services in Exchange Online in October 2026, so legacy Outlook for Mac stops working with Exchange Online; Microsoft says most users have moved to new Outlook.
Does MarginMail support Microsoft 365?
Not yet. MarginMail supports Gmail and Google Workspace today; other providers come later.
Does MarginMail have Copilot-style AI?
MarginMail’s AI is optional and private: Apple Intelligence on your Mac finds requests, and your own Claude writes a draft from your notes when you click Write it (only that conversation goes to Anthropic, under your plan). It never sends.
Sources
- Microsoft 365 plans compared: microsoft.com/en-us/microsoft-365/buy/compare-all-microso… (read Oct 16, 2026)
- Outlook for Mac support (accounts): support.microsoft.com/outlook/outlook-for-mac
- Copilot Chat pop-out on Mac, Message Center MC1454996 (updated Sept 11, 2026): mc.merill.net/message/MC1454996
- IT Brief, agentic Copilot in Outlook, Apr 30, 2026: itbrief.com.au/story/microsoft-adds-agentic-copilot-tools…
- End of support for legacy Outlook for Mac: support.microsoft.com/en-us/outlook/end-of-support-for-le…
Mail and calendar together, for Google.
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