Airmail
Airmail
3.7
  • Robust iOS application
  • Receives regular updates
  • Free version available
Best iPhone App
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Some email providers offer decent mobile apps, but few provide mobile support that can compete with Airmail. Airmail is a fast email client with strong performance on macOS computers as well as iPhones and iPads. Their iOS app received the Apple Editor’s Choice award on the App Store and has mostly positive reviews across over 1,000 ratings. Airmail is the best provider available in 2021 for users who want to manage their inboxes on an iPhone or iPad.

A quick look at Airmail’s version history on iOS shows that they’re serious about updating the application. With more than ten new releases in 2021 alone, Airmail is supported as actively as any email software we’ve seen. It’s also worth mentioning that they introduced compatibility with iOS 15 almost simultaneously with Apple’s official release of iOS 15. You can count on Airmail for consistent bug fixes and compatibility updates for new versions of the iOS operating system.

Airmail’s pricing is a little confusing, as the website simply states that “new users can try Airmail without Multi Account, and limited capabilities” without clarifying what those limitations are. The standard Pro tier costs $2.99 per month or just $9.99 per year, which works out to a discount of more than 70 percent. There’s also a Business tier available for a one-time fee of $49.99, with volume discounts available for bulk orders.

Pros & Cons

Pros

  • Robust iOS application
  • Receives regular updates
  • Free version available

Cons

  • Confusing pricing

What Customers Are Saying

Airmail has mixed feedback across multiple review platforms, but users seem to like its interface and overall functionality. Many of the complaints have to do with Airmail’s switch to a subscription-based model, which left existing Premium users without features they had already paid for under the previous pricing system.

Summary

  • Starting Price
    • Airmail Pro: $2.99/month
    • Airmail for Business: $49.99 One time payment
  • Free Trial/Demo
    Free Trial and Free Version Available
  • Agency Features
    Not provided
  • Automation Options
    Yes
Ratings
  • User Review Score 3.7
BlueMail
BlueMail
4.4
  • Excellent free tier
  • Compatible with Windows, Mac, Linux, Android, and iOS
  • Intuitive user interface
Best Free Option
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While some premium email providers offer extra features, you might be looking for an application that doesn’t charge any license or subscription fees. We looked at several different pieces of free email software and found that BlueMail offers more than the competition for users who aren’t looking to spend any money. Their free tier is missing some more advanced tools, but it comes with all the basic functionalities you need such as encryption, ad-free content, and no listed send limits. Overall, it was a clear choice as the best free email software available in 2021.

BlueMail also supports a long list of devices and operating systems, making it one of the most versatile applications we’ve seen. It’s currently available for Mac, Windows, Linux, iOS, and Android, and you can even download a client for Amazon devices. Whatever device you’re using, you can install BlueMail and start managing your emails in just a few seconds.

You can upgrade to BlueMail’s Business tier for $4.49 per user per month in order to access extra tools like priority support, policy and device management, and team oversight for corporate users. At $6.99 per user per month, the Enterprise plan introduces even more features such as single sign-on, custom branding, and deeper customization.

Pros & Cons

Pros

  • Excellent free tier
  • Compatible with Windows, Mac, Linux, Android, and iOS
  • Intuitive user interface

Cons

  • Limited recent updates

What Customers Are Saying

BlueMail has received mostly positive reviews from a decent volume of users. Reviewers are particularly happy with the platform’s clean, sleek interface that makes it easy to find whatever you’re looking for.

Summary

BlueMail
BlueMail
  • Starting Price
    • Business: $4.49/user/month
    • Enterprise: $6.99/user/month
  • Free Trial/Demo
    Free Version Available
  • Agency Features
    Not provided
  • Automation Options
    Yes
Ratings
  • User Review Score 4.4
EM Client
eM Client
4.0
  • Compatible with popular email services
  • Basic features are free for individual use
  • Discounts for schools, universities, and NGOs
Best Compatibility
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No matter what email service you’re using, eM Client can help you clean up your inbox and increase your productivity. It’s fully compatible with eleven of the most popular platforms: Google Workspace, iCloud, Microsoft 365, Microsoft Outlook, Microsoft Exchange, macOS Server, IceWarp, SmarterMail, Kerio, Mailfence, and MDaemon Email Server, which was our pick for the best email software in terms of user reviews. With that in mind, eM Client offers the most versatile compatibility of any email platform in 2021.

On top of email management, eM Client also comes with a variety of extra productivity tools such as scheduling and task management, notes, contacts, and more. All messages support full text search and can be automatically translated into your native language as soon as they enter your inbox. Users can also create custom signatures and templates in order to create emails more efficiently.

Free eM Client accounts come with some notable limitations including no scheduled sends, no message translation, and just two email accounts on a single device. You can upgrade to Pro for a one-time payment of $49.95 in order to remove these restrictions and access one year of VIP support. Companies and organizations can buy bulk Pro licenses at a significant discount—for example, you can get 10 licenses for just $188.95, or $18.90 per unit. All licenses come with a 30-day money-back guarantee.

Pros & Cons

Pros

  • Compatible with popular email services
  • Basic features are free for individual use
  • Discounts for schools, universities, and NGOs

Cons

  • Mixed user reviews

What Customers Are Saying

While reviews of eM Client are generally positive, we found more criticism for this application compared to most of the competitors we’ve listed. Some reviewers had trouble with the user interface, while others missed the option to recall emails after sending.

Summary

EM Client
eM Client
  • Starting Price
    • Pro for Individuals: $24.95 One time payment
    • Pro for companies: $109.95 per unit $11
  • Free Trial/Demo
    Free Trial and Free Version Available
  • Agency Features
    Not provided
  • Automation Options
    No
Ratings
  • User Review Score 4.0
Front
Front
4.6
  • Strong enterprise features
  • Active support
  • Impressive scalability
Best for Enterprises
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Enterprise users have unique needs when it comes to email software. If you’re looking for an email platform for a larger organization, you likely need a variety of additional features such as single sign-on, dedicated onboarding, ongoing support, and team management controls. Front offers all of these tools and more through its Enterprise tier, which comes with custom pricing based on the needs of each unique user. All things considered, Front is the best email software for enterprise users in 2021.

Front continues to receive regular updates covering both bug fixes and more robust changes. One 2021 update, for example, introduced several new tools for customer relationships including conversation histories, custom workflows based on user data, enhanced team performance monitoring, and direct integrations with a variety of CRMs. These releases demonstrate the team’s commitment to improving the Front platform and staying ahead of the competition.

The Front Starter plan costs $19 per month billed annually and comes with unlimited connections to email, SMS, and social media accounts. It also includes other features like basic rule templates and support for most third-party integrations. The Prime plan comes with service-level agreements, sophisticated analytics, plus custom rules and integrations. As we said earlier, the Enterprise tier offers single sign-on, team administration, plus dedicated onboarding and support. Both Prime and Enterprise come with custom pricing based on the scale and needs of your organization.

Pros & Cons

Pros

  • Strong enterprise features
  • Active support
  • Impressive scalability

Cons

  • No free option

What Customers Are Saying

Front has some of the most impressive user reviews of any email platform we’ve looked at. The only recurring complaint we noticed had to do with the mobile app, which is missing some of the features and capabilities that are available with the desktop client.

Summary

  • Starting Price
    • Starter: $19/user/month
  • Free Trial/Demo
    Free trial
  • Agency Features
    Not provided
  • Automation Options
    Yes
Ratings
  • User Review Score 4.6
Mailbird
Mailbird
4.4
  • Integrates with email and messaging apps
  • Automatically creates contact profiles
  • Clean interface
Best Multi-Channel Chat
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Managing communications on multiple channels can be a serious headache. Mailbird is designed to integrate your email client with other messaging apps in order to consolidate every channel into a single interface. It currently supports some of the most popular third-party platforms including Whatsapp, Dropbox, Evernote, Twitter, Facebook, Google Calendar, Google Docs, Slack, WeChat, and more. It’s the best email software in 2021 for users who want to streamline a multi-channel workflow.

Mailbird also comes with helpful built-in tools like speed reading, attachment searching, and message snoozing. Furthermore, it will automatically take in contacts from those other platforms and add the information to a unified profile. You won’t have to deal with duplicate contacts or spend any extra time tracking down contact information from a specific application. Unfortunately, we weren’t able to find any information about recent updates.

Users can subscribe to Mailbird through either the Personal or Business plan depending on their needs. Personal costs $3.25 per month billed annually. While it comes with unlimited accounts, it’s missing some key tools like live chat support, Google Workspace integration, and support for Microsoft Exchange accounts. Those restrictions are removed in the Business tier, which costs $4.92 per month billed annually or $99.75 for a lifetime license.

Pros & Cons

Pros

  • Integrates with email and messaging apps
  • Automatically creates contact profiles
  • Clean interface

Cons

  • No ongoing free option

What Customers Are Saying

Mailbird customers appreciate its professional design and support for various messaging applications. We also found praise for some of the less flashy features like snoozing and tracking that make it easier to stay on top of an email workflow.

Summary

Mailbird
Mailbird
  • Starting Price
    • Mailbird Personal: $29.5 One time payment
    • Mailbird Business: $2.04/month
  • Free Trial/Demo
    Free Trial and Free Version Available
  • Agency Features
    Not provided
  • Automation Options
    No
Ratings
  • User Review Score 4.4
Mailspring
Mailspring
4.4
  • Linux client available
  • Active support community
  • Receives regular updates
Best for Linux
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Looking for email software can be tough as a Linux user. While most of its competitors have started focusing on the macOS and Windows operating systems, Mailspring still offers a robust client for Linux. Even better, there’s an active group in the Mailspring forums that can help you get the application up and running in case you run into any issues. With a uniquely strong Linux community, Mailspring is the best choice for Linux users in 2021.

The latest major release of Mailspring was version 1.9.0, which came out in April of 2021. Since then, there have been two smaller updates that fixed some issues from the original release while adding features like forwarding rules, ProtonBridge integration, and localizations for German and Czech. With ideas for future updates already available in the Mailspring forums, it’s clear that the team plans to continue making changes to the platform based on user feedback.

The free version of Mailspring is surprisingly robust, with helpful tools like email recall, read receipts, link tracking, customizable themes, and support for multiple accounts. Mailspring Pro, on the other hand, currently costs $8 per month. The Pro tier includes additional features such as send scheduling, mailbox analytics, and customizable follow-ups. You can upgrade from Free to Pro at any time within your Mailspring account preferences.

Pros & Cons

Pros

  • Linux client available
  • Active support community
  • Receives regular updates

Cons

  • Limited user reviews

What Customers Are Saying

Mailspring had the most limited reviews of any application we looked at, so it’s tough to draw any conclusions from customer feedback. We would recommend starting with the free version before considering an upgrade to Pro.

Summary

Mailspring
Mailspring
  • Starting Price
    • $8.00/user/month
  • Free Trial/Demo
    Free trial
  • Agency Features
    Not provided
  • Automation Options
    Yes
Ratings
  • User Review Score 4.4
MDaemon Email Server
MDaemon Email Server
4.8
  • Flexible pricing
  • On-premises, virtual, and cloud deployments
  • Strong user reviews
Best User Reviews
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We made a point to look for providers with positive reviews, but MDaemon Email Server still stands out from the other services we covered when it comes to customer feedback. With an average score of 4.8 out of 5 across multiple review platforms, it’s clear that MDaemon Email server offers more than enough for the vast majority of its users. It’s the email application with the best overall user reviews in 2021.

It’s also worth noting that MDaemon offers on-premises email servers along with virtual deployments depending on your needs. You can also find hosted MDaemon mailboxes in the cloud in Africa, Canada, India, the United Kingdom, United States, and Asia-Pacific regions through a variety of third-party resellers. However, one drawback we noticed is that the MDaemon website and client appear to be relatively dated compared to the top competitors.

Pricing for MDaemon email server is dependent on several different factors including the term of your license, your number of users, and the kind of support you’re looking for. Priority phone and support is available for an extra charge, giving you a one-day response guarantee for the lifetime of your subscription. Check the MDaemon website for more details about pricing for your specific use case.

Pros & Cons

Pros

  • Flexible pricing
  • On-premises, virtual, and cloud deployments
  • Strong user reviews

Cons

  • Dated interface

What Customers Are Saying

As mentioned above, MDaemon stood out to us due to its uniquely strong user reviews. Customers appreciate the platform’s detailed log files, which make it easy for plan administrators to track unsuccessful sends and manage all of their incoming and outgoing emails.

Summary

MDaemon Email Server
MDaemon Email Server
  • Starting Price
    • 5 user: $1,346/3 years
    • 10 user: $1,558/3 years
    • 25 user: $1,771/3 years
    • 50 user: $1,992/3 years
    • 100 user: $2,425/3 years
    • 200 user: $2,692/3 years
    • 300 user: $2,913/3 years
    • 400 user: $3,090/3 years
    • Contact for more pricing options
  • Free Trial/Demo
    Free Trial and Free Version Available
  • Agency Features
    Not provided
  • Automation Options
    Yes
Ratings
  • User Review Score 4.8
Postbox
Postbox
4.5
  • Intuitive user interface
  • Additional themes available
  • 30-day free trial
Best User Interface
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While design is ultimately subjective, Postbox comes with a clean, sleek interface that’s hard not to love. Whether you’re using it on Windows or macOS, you’ll feel right at home in its minimalist design that’s familiar yet different from the other apps we’ve seen. It’s not just us—while some Postbox users criticize other aspects of the platform, most of them are very happy with the visual design itself. All in all, Postbox is the email software with the best user interface in 2021.

The Postbox Release Notes page offers information about recent releases. Unfortunately, the updates don’t appear to be dated, so it’s difficult to determine how much support the application actually receives. Postbox is compatible with most major email providers including Gmail, iCloud, Yahoo, AOL, Microsoft 365, Outlook, ProtonMail, FastMail, and more—you shouldn’t have trouble integrating it with any IMAP or POP account.

Another advantage of Postbox over most alternatives is its highly competitive pricing. With no ongoing subscription fees, you can currently get a lifetime license for a one-time payment of $39 per user. While this is listed as a discount down from $49 per user, there’s no way to tell if or when the price will go back up. Extra themes are available in the Theme Store for additional customization. You can also start with a 30-day free trial with no credit card information required.

Pros & Cons

Pros

  • Intuitive user interface
  • Additional themes available
  • 30-day free trial

Cons

  • Mixed user reviews

What Customers Are Saying

The majority of users are happy with Postbox, but we found a surprising number of complaints about their customer service team. Reviewers noted that Postbox may charge an additional fee for support, potentially raising the price far above the listed $39 for a lifetime license.

Summary

  • Starting Price
    • $29/user One time payment
  • Free Trial/Demo
    Free trial
  • Agency Features
    Not provided
  • Automation Options
    No
Ratings
  • User Review Score 4.5
Spike
Spike
4.7
  • Free tools for students and educators
  • Excellent productivity tools
  • 14-day free trial
Best for Productivity and Collaboration
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Spike is an innovative email client that makes your inbox look more like other messaging apps. With messages sorted by recipient rather than thread or subject line, it’s almost a hybrid between email and a more traditional messaging service. We chose Spike as the best email software for productivity and collaboration due to its powerful suite of features for businesses and organizations. Subscribers can create tasks and to-do lists, send text and voice messages, manage their files, view their schedule, run video meetings, and more. It’s the best email platform and all-in-one productivity solution we’ve found in 2021.

The Spike for Students solution also makes Spike an ideal choice for students and teachers. Its feature set is well-suited to an educational environment, and the application is also completely free for educational use. As a teacher, Spike will make it easy to manage your entire classroom for remote, in-person, or hybrid learning.

Personal accounts with Spike are free, but they only come with 5 GB of storage and 20 total notes. They also include a Spike signature in each message, which may make your emails appear less professional. Premium plans start at $12 per user per month for individuals, $8 per user per month for teams of 2 or more, and $7 per user per month for teams of five or more. You can test out the service for up to 14 days before deciding whether to continue with a subscription.

Pros & Cons

Pros

  • Free tools for students and educators
  • Excellent productivity tools
  • 14-day free trial

Cons

  • No Linux app

What Customers Are Saying

Spike has uniformly positive feedback across more than 100 reviews, including numerous positive reviews in 2021 alone. The main criticism we saw is that Spike doesn’t offer a client for Linux, but that should only be an issue for a small percentage of users.

Summary

  • Starting Price
    • Solo: $12 per account/month billed annually
    • Team: $8 per account/month billed annually
    • Business: $7 per account/month billed annually
  • Free Trial/Demo
    Free Trial and Free Version Available
  • Agency Features
    Not provided
  • Automation Options
    Yes
Ratings
  • User Review Score 4.7
Zimbra
Zimbra
4.4
  • Outstanding customer support
  • 60-day free trial
  • Hosted and on-premises deployments
Best Customer Service
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If you run into any issues with your email software, you want to know that someone is ready to help on the other end. Zimbra is one of the only email platforms with guaranteed 24/7 support, ensuring that you’ll be able to contact a live representative whenever you run into technical issues or any other unexpected problems. With customizable support offerings available, you’ll have the option to select whatever customer service program matches the needs of your organization.

While Zimbra offers information about product updates on their website, we were disappointed to find a lack of data about any releases since April 2020, which marked the release of Zimbra 9.0.0. That appears to be the most recent update, making Zimbra one of the least active platforms we’ve covered when it comes to updates and application support.

Fortunately, Zimbra offers the most generous free trial we’ve seen from any email application, giving new customers a full 60 days to test out the platform before committing to a paid subscription. After that, you’ll need to get a custom quote for either Zimbra’s hosted or on-premises deployment. Keep in mind that these services are offered through third-party resellers rather than being provided by Zimbra itself.

Pros & Cons

Pros

  • Outstanding customer support
  • 60-day free trial
  • Hosted and on-premises deployments

Cons

  • Missing recent updates

What Customers Are Saying

While Zimbra only has a small number of user reviews, the feedback we were able to find was overwhelmingly positive. Most Zimbra customers are extremely happy with the platform’s interface, which makes it easy to manage even sophisticated email workflows.

Summary

  • Starting Price
    • Custom Quote
  • Free Trial/Demo
    Free Trial and Free Version Available
  • Agency Features
    Not provided
  • Automation Options
    No
Ratings
  • User Review Score 4.4

How We Chose the Best Email Clients

Basic email clients like Gmail and iCloud come with enough features for many personal users, but you might be looking for third-party email clients for a number of reasons. Whether you’re looking to market your business, manage your schedule, or just consolidate multiple inboxes into one, there’s an application out there for you.

With that in mind, there’s no one best option when it comes to email providers. We focused on the following four criteria to bring you the ten best pieces of email software available in 2021 for a variety of use cases.

Functionality

While all of the applications on this list come with basic email tools like mailbox visualization and access on a variety of devices, there are significant differences between platforms when it comes to functionality. We’ve made an effort to outline the key features of each application and highlight areas in which they stand out from the alternatives.

Keep in mind that functionality also needs to be considered alongside the price and overall value of an email service. For example, even though many of the services we’ve covered provide tools for enterprise clients, we found that Front was the best overall choice for enterprise users who need to work with a more robust provider.

Ease of Use

Managing your email workflow can be complicated, and some applications help more than others when it comes to ease of use. You shouldn’t have to spend extra time understanding how an application functions or troubleshooting any technical issues.

Design is inherently subjective, but that doesn’t mean that some platforms aren’t easier to use than others. We looked at each provider’s client to understand their interface, and we also read through customer reviews in order to get an idea of how the application works for real users.

Pricing

Email clients are easier to find than ever before, so there’s no reason to break the bank on any of these applications. In fact, you can get decent email features at no charge with BlueMail and some of the other free providers we’ve highlighted.

Of course, that isn’t to say that premium applications are never worth the additional cost. We’ve highlighted email software at a variety of price points to help you find the option that makes the most sense for your needs and budget.

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