The world is digital these days. Business, personal, you name it: it lives online. And how well we communicate through this digital realm will greatly rely on email. For the best email communication, you need the best email client for Mac.
With so many email client apps available, finding the right one can be a tedious task. To make things easier, we did the research and compiled a list of the best email clients for Mac right here!
Product FAQ
1. What Is an Email Client App?

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An email client app is not an email service. An email service would fall along the lines of Gmail or Yahoo Mail. An email client app is a program that sifts and sorts through one inbox or several mailboxes and provides you with a more accessible and further organized experience.
2. What Does an Email Client App Do?
Email client apps prioritize emails within a single inbox. There is a variety of extra functionality within an email client app which you won't find in an email service.
3. Where Can You Buy an Email Client App?
Most email client apps are available via the Apple App Store.
How We Reviewed
We reviewed the following products based on the following parameters: features, pros & cons, price, where to buy, and warranty. We invested a lot of time researching different places to provide you with an unbiased “best of” list. Our time spent was dedicated to making sure we could take the strenuous task of digging for information out of the picture so that the most exceptional results could be more easily accessible for you.

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Overall Price Range of This Product (and Similar Products)
The price range for an email client app falls along the lines of free to $130.
What We Reviewed (Best Email Client for Mac)
Airmail 3

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Dealing with an email client app involves processing several criteria, and Airmail 3 meets them all with excellence. Winner of an Apple Design Award, the modern and clean-looking interface aesthetically puts the overall experience of email in your hands.
Like most email client apps, Airmail 3 gives the user a unified inbox experience. The user can funnel each of their email services (Google, Yahoo, AOL, iCloud, etc.) into one unified inbox. Rather than opening multiple tabs or windows and exploring/browsing between all those sources, everything is conveniently located and accessible from one source.
Airmail 3 comes loaded with impressive features. If you would like to reply to an email instantly, the option is there; if you would want to store emails away in separate but organized folders like “To-Do,” “Memos,” and “Done,” they supply these enriching email features. You can time-delay an email from sending out, so you won't bother someone with work emails over the weekend. However, with this feature, you won't miss out on capturing your initial and relevant reactions/responses.
On top of scheduling that delayed response, Airmail also allows us to “snooze” on responding to an email. We get a notification about the email again, later on. Another great feature is Airmail's ability to connect to third-party apps. You can send a “To-Do” list item to one of your to-do apps, such as Wunderlist.
This is easily a top contender for the “best email client for Mac.”
Pros
Cons
Edison Mail

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Edison Mail is a great resource and a top contender for the best email client app for Mac. It doesn't boast the long list of features like Airmail would offer, but it has some important functions, and it is all for free!
Edison Mail will organize your inbox for you. The app will scan through, sort, and automatically separate specific types of emails for you. For example, they can sort emails with shipping info like a tracking number. Messages with receipts can separately be sorted, and messages about a subscription service can also be independently organized.
Pros
Cons
Apple Mail

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Apple Mail is an excellent resource for personal email use. It comes free with every Apple computer. Its pervading nature automatically makes it a contender towards the best email client app for mac. They widely regard it as one of the best solutions for email needs.
Apple Mail is free for all iOS devices and Apple computers. It hosts some powerful tools. You can sign and send out important documents through the app. You can also use Apple Email Drop to send large files through email without taking up too much allocated email storage space.
Pros
Cons
Spark

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Spark is a top-notch, best email client for Mac. Its ease of use and beautiful layout make it a top contender in the market.
Spark is great because it offers so many top-notch features that other email client apps bring but does so with the initial cost of zero dollars!
Spark offers a unified inbox, which will deliver multiple email accounts all into one directory. No more flipping through browser tabs and windows, waiting for an email service to load. They streamline everything into one convenient and unifying source. They sort each email based on being read and unread. There is smart scanning functionality, which will scan through the email received notifying you based on its importance. You can schedule delivery of an email. You can “snooze” your response to an email. You can also link Spark to third-party apps. The service Spark brings to the table is a real value for free.
Pros
Cons
Front

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The highlight feature of Front is a collaboration. With Front, a team can come together over a specific email domain and actively engage, converse, and execute. Amongst everything on the list of the best email client for Mac, Front is most utilized by businesses.
Email messages that come in from clients can be flagged by name/ client or with a certain level of importance and then channeled to specific people on the team. This process helps to get particular emails to the most appropriate people within a group in swift and empowering motions. Front also enables the connection of social media accounts. Team members can access the social media pages of recipients and messengers in the same display.
Pros
Cons
Outlook

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Outlook is available for free on mobile devices. As the best email client for Mac, however, Outlook is about high price or included with Microsoft Office 365 from an affordable price a month.
Outlook, as a desktop mac email client, promotes many of the standard email client functionality. There is a smart inbox which sifts through and marks emails as important or not. You can also customize stroke effects, so deleting, archiving, or moving around to new folders is left to your heart's desire.
Pros
Cons
MailMate

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MailMate offers a strong developer side to sending and receiving emails. MailMate specializes in a powerful and efficient inbox engine. They have unified inboxes, so multiple email accounts can all link and funnel into this one streamlined site. MailMate also instills a truly smart mailbox. You can customize the importance of individual emails, and MailMate will organize everything coming in for you very efficiently.
Pros
Cons
Polymail

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A modern and sure contender of best email client for Mac, Polymail creates an email atmosphere that focuses on the relationship between you and your contact. All emails enter an inbox capable of “snooze” or “read later” assignments. Each contact has an avatar, and upon opening their email, you get a great look at not only the content of their message but also a sidebar view of that contact. Social media accounts, about me, and possibly a picture show up to represent the contact. Previous attachments and email threads become available within this sidebar too.
Polymail makes available templates for emails, so you don't have to worry about how to format what you would like to send. Polymail also connects to Salesforce and makes customer records readily available.
They designed Polymail for teams too. You can track statistics about how much time people spend in their inboxes and how many replies an individual team member receives.
On the premium and enterprise accounts, Polymail makes more stat records available. Some fantastic features include being able to see if your contact has opened your email and if they've downloaded any attachments.
Pros
Cons
Postbox

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Proficient at keeping your inbox organized, Postbox allows you to manage multiple tabs of inbox messages at once. Toggling through all those new emails has never been easier. Each sender has a mini-profile, so you can better know the sender and have access to previous conversations/attachments.
Pros
Cons
Thunderbird

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Talking about the best email client for Mac, you cannot leave Thunderbird off of the list. Thunderbird is over 15 years old and very well polished. Created by the people who have brought us Mozilla Firefox.
Thunderbird allows for imported contacts and calendars. The interface is intuitive and straightforward to use. Thunderbird makes it super convenient, using tabs to keep messages open and available as we browse over our inboxes. Better yet, when we close the program and re-open it at a later time, our old tabs will still be available to us.
Pros
Cons
The Verdict
When it comes down to the best email client for Mac, it's important to consider our needs. Most of us are just looking for more efficient organization along with cool features like “snoozing” a message for reading later. Other cool features might include scheduled/delayed responding so that we can respond in real time but get that message to our contact's inbox when it matters most.
The best email client app for Mac is Polymail.
Polymail is rich with features, starts on a basic/ free plan, and makes email efficient yet personal.
For purely free email client apps, Spark is the number one contender with no question. It has great features and a beautiful interface for free.
Step into a world where digital outreach is as easy as you would like it to be.