Free and open first
Best Email Clients in 2026 — page 5
- 142 apps
- Research read 28 Sept 2026
- How the order is worked out
- 101
Sup
Free plan LinuxMacSup offers deep local organization and customization for users comfortable with console email tools.
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Triage
Free plan iPhoneMacTriage focuses on quickly processing unread email rather than broader inbox management. Its card workflow and on-device storage are useful for Apple users, with paid additions beyond the free plan.
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PopMan
Free plan LinuxWindowsPopMan focuses on server-side mail inspection and cleanup rather than being a full email client.
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WunderMail
by WunderMailFree plan WindowsWunderMail offers Gmail-focused Windows mail access with multi-account support, offline actions, and native notifications.
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mu4e
Free plan Linuxmu4e brings search-centered email management into GNU Emacs, with offline use and extensive integration options. Setup depends on Emacs, mu, Maildir, and separate retrieval and SMTP tools.
- 107
Conjoon
Free plan APISelf-hostedWebConjoon offers a configurable webmail interface with unified multi-account handling and documented APIs.
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Geary
Free plan LinuxGeary focuses on conversation-based email for Linux and supports major consumer services through IMAP.
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Cursus
Free plan LinuxWindowsCursus focuses on a local, keyboard-driven email workflow without a paid tier or account requirement.
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meli
Free plan LinuxMacmeli offers broad mail-source support and a configurable terminal interface, with useful security features. Its read-only mbox support and limited all-email search are important constraints to weigh.
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Mia for Gmail
Free plan MacMia provides Gmail actions and notifications in a Mac menu bar interface. The free tier covers one account, while Premium is needed for multiple accounts.
- 113
Gmelius
Free trial AndroidAPIExtension+2Choose Gmelius if your team works in Gmail and wants shared inbox collaboration alongside configurable AI agents.
- 114
Afterlogic WebMail Pro PHP
by Afterlogic WebMail Pro PHPFree trial AndroidAPIiPhone+4Afterlogic WebMail Pro PHP combines mail, calendar, tasks, files, synchronization, and encryption in a deployable webmail package.
- 115
Balsa
Free plan LinuxBalsa provides broad mailbox support, desktop email functions and message encryption without a listed charge. Its address-book limits and credential-storage differences depend on build configuration.
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Wan
Free plan LinuxSelf-hostedChoose Wan if you want an open source, self-hosted video model suite with multiple generation and editing tasks, and can meet its setup and hardware requirements.
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Afterlogic WebMail Pro ASP.NET
Free trial APISelf-hostedWeb+1Afterlogic WebMail Pro ASP.NET offers broad mail-server compatibility, calendar tools and self-hosted control.
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Workspace ONE Boxer
by Workspace ONE BoxerPaid WebWindowsMac+3Choose Workspace ONE Boxer if you need mobile inbox and calendar tools within an endpoint management offering.
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Superhuman Mail
by Superhuman MailPaid WebWindowsMac+2Superhuman Mail combines broad platform coverage with offline access, scheduled sending, and calendar tools.
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HCL Verse
Paid AndroidiPhoneMac+2HCL Verse brings email, calendars, collaboration, security controls, and deployment flexibility into one enterprise service.
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