The 5 Best Free Email Clients for Mac in 2019

Take a test drive with these free email programs for the Mac

A woman at a work table looking at email on her mac computer.

@jsdaniel via Twenty20 

A free email client comes installed and ready for use with macOS, and macOS Mail is not a bad program at all. However, you might want to examine its free alternatives. Here are the best free email clients available for macOS. Give them a try.

01
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MacOS Mail

Mac OS 10
image copyright Apple

What We Like

  • Included in the Mac operating system.

  • Supports smart folders and robust filters.

  • Markup tools for annotating photos or PDFs email attachments.

  • VIP user notifications.

What We Don't Like

  • Basic design that lacks customization features.

  • No option to snooze emails.

  • Hasn't had a major design upgrade in years.

The Mail application that ships with macOS and OS X is solid, feature-rich and spam-eliminating software that is also an easy-to-use email client. Optimized to work on the Mac, the Mail app is trouble free and full featured. It can handle all your email accounts in one place.

02
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Spark

A screenshot of the Spark Mail website.

What We Like

  • Clean, modern design.

  • Quick Replies feature for sending short, templated responses.

  • Smart mailboxes.

  • Supports multiple email accounts.

What We Don't Like

  • Slow tech support.

  • Questionable privacy policy.

  • Doesn't support many services.

Spark is an impressive email program that auto-organizes your inboxes and lets you postpone email easily as well as send quick one-click replies. Spark's "Smart Inbox" bubbles messages that are important to you to the top, and uses categories of Personal, Notifications, and Newsletters.

Spark's scheduling feature allows you to assign a time period during which it will send a particular message. Select from times later today, in the evening, tomorrow, or on any date.

03
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Mailspring

Screenshot of the Mailspring application.

What We Like

  • Integrates with Gmail, iCloud, Office 365, Outlook, and Yahoo

  • Supports snoozing.

  • CPU and battery efficient.

What We Don't Like

  • Some features limited to paid subscription.

  • Doesn't support Exchange accounts.

  • Mandatory Mailspring ID.

Aimed at the professional email user, Mailspring boasts mail merge, reminders, and the option to schedule mail—all available in a pro edition.

With the free version, you get a clean, highly productive and expandable email program that includes thrills such as link and open tracking, quick reply templates, and undo send. However, the free edition is limited to 10 accounts.

04
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Mozilla Thunderbird

Screenshot of the Mozilla Thunderbird website.

What We Like

  • Flexible filtering system.

  • Many available plug-ins.

  • Tabs for navigation.

  • Easy to configure.

What We Don't Like

  • Rudimentary design.

  • Not as user friendly as other clients.

  • No longer in development.

Mozilla Thunderbird is a full-featured, secure, and functional email client. It lets you handle mail efficiently and filters away junk mail. Thunderbird is no longer in active development except for security updates, but it supplies a streamlined interface and a powerful email package.

05
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Mozilla SeaMonkey

Screenshot of the SeaMonkey email client showing emails in the Inbox.

What We Like

  • All-in-one internet suite that includes email.

  • Customizable toolbars.

What We Don't Like

  • Outdated interface.

  • Some features not intuitive.

  • No mobile device support.

Never underestimate Mozilla. The company built SeaMonkey, the email component of its open source browser, on the same Mozilla platform as Firefox 51. It delivers HTML5, hardware acceleration, and improved JavaScript speed. It is a solid performer, full featured and usable.