Windows users have plenty of email clients to choose from, but the right choice depends on more than whether an app can send and receive messages. If you manage multiple accounts, use email for work, or want your calendar, contacts, and tasks in the same place, a dedicated email client can make a significant difference.
The best Windows email clients combine a responsive desktop experience with strong account support, useful productivity features, and enough flexibility to work with the services you already use. And because email does not stop when you leave your PC, mobile support is increasingly important too.
There is also a new consideration for anyone using Microsoft 365 or Exchange Online. Microsoft is retiring Exchange Web Services, or EWS, for Exchange Online and moving third-party applications toward Microsoft Graph. Microsoft says EWS access will begin being disabled on October 1, 2026, with full retirement planned for April 1, 2027.
Here is how the leading options compare, and why eM Client comes out ahead for most Windows users.
Top pick for Windows: eM Client
eM Client is our top choice for Windows 10 and 11 because it combines a full-featured email client with calendars, tasks, contacts, notes, chat, and a strong set of productivity tools.
It is particularly well suited to people managing multiple accounts. You can connect accounts from major services such as Gmail, Outlook, Yahoo, and Exchange, as well as accounts using standard protocols such as IMAP. It brings calendars, tasks, contacts, and notes into the same interface, with features such as Quick Actions, advanced search, email rules, snoozing, templates, QuickText, attachment history, offline access, and built-in encryption, providing considerably more depth than a basic desktop mail app.
It also works across Windows, macOS, iOS, and Android, so your email workflow does not have to stop at your Windows PC.
Why choose eM Client
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Complete email workspace: Email, calendar, tasks, contacts, notes, and chat in one app.
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Multiple accounts: Connect personal and work accounts from different providers in one place.
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Powerful organization: Quick Actions, advanced search, rules, snoozing, QuickText, templates, tags, and attachment history.
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Cross-platform: Use eM Client on Windows, macOS, iOS, and Android.
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Microsoft 365 and Exchange: Connect Microsoft 365 and Exchange accounts alongside Gmail, Outlook, Yahoo, and other services.
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Security: Support for PGP and S/MIME, along with other security and privacy features.
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More coming in eM Client 11: The upcoming version adds an AI Assistant, message summaries, quick replies, natural-language search, MCP support, eM Sync, and Microsoft Graph support, alongside features such as the Command Palette, message pinning, account colors, improved rules, and Matrix chat. These eM Client 11 features are currently available in beta.
For Windows users who want more than a basic inbox, eM Client offers one of the most complete alternatives to Outlook, while remaining flexible enough to manage accounts from different providers.
Other options compared
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Thunderbird: Free, open-source, and highly customizable. It supports Exchange and is actively working on Microsoft Graph, making it a strong alternative for Microsoft 365 users. It has an Android app, but no iOS app.
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Classic Outlook: The obvious choice if you already use Microsoft 365 heavily. It offers deep Microsoft integration but might encounter issues with non-standard setups.
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Mailbird: A polished, straightforward desktop client with a focus on simplicity. It works on Windows and macOS but has no native mobile apps. However, the free version is very limited – it only allows the user to add 1 email account, and setting up accounts via the Exchange protocol isn’t available (that option is restricted to the paid (Premium) tier license).
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New Outlook for Windows: Microsoft's replacement for the discontinued Windows Mail app. It makes sense for users already invested in the Microsoft ecosystem, while eM Client offers a more provider-neutral alternative with broader productivity features. The way New Outlook works is closer to webmail than a standalone app – which might not be a preferred option for users looking for the features and flexibility of a traditional desktop email client.
For users who want more independence from Microsoft's ecosystem, support for accounts from different providers, or a broader set of integrated productivity features, a dedicated client such as eM Client is worth considering.
Windows 11 considerations
Windows 11 is where Microsoft's transition to new Outlook for Windows has been most visible. The previous Windows Mail, Calendar, and People apps have been retired, so users looking for the old built-in Mail app are now directed toward Outlook.
Outlook can be an excellent choice if your email, calendar, and work environment already revolve around Microsoft 365. But if you use accounts from several providers or want an email client that is not tied to one ecosystem, eM Client offers a more flexible alternative.
For people who use email heavily on Windows, eM Client's existing productivity features are also a major advantage. Quick Actions can automate repetitive sequences of actions, while rules, advanced search, snoozing, QuickText, templates, and attachment history make it easier to manage a busy inbox.
eM Client works across Windows 10 and Windows 11, while also extending to macOS, iOS, and Android when you need to switch devices.
FAQ
What’s the best email client for Windows 11?
eM Client is our top pick for Windows 11. It combines email, calendars, contacts, tasks, notes, and chat with features such as Quick Actions, advanced search, rules, and support for multiple accounts.
What is the best alternative to Outlook for Windows?
eM Client is a strong Outlook alternative for users who want to manage accounts from different providers in one app, with integrated calendar, contacts, tasks, notes, and chat.
Is Windows Mail still available?
No. Windows Mail reached end of support on December 31, 2024.
Microsoft now recommends New Outlook for Windows as the replacement for those apps.
Does Windows 10 support the same email clients as Windows 11?
Yes, eM Client and virtually all major third-party clients support both versions identically.
Does eM Client support Microsoft 365?
Yes. eM Client supports Microsoft 365 and Exchange accounts. Microsoft Graph support is being introduced in eM Client 11 as Microsoft transitions away from EWS.
Does eM Client have a mobile app?
Yes. eM Client has native apps for iOS and Android, allowing you to use your email, calendar, contacts, and other supported features across desktop and mobile.
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