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Microsoft Outlook: Market Share & Competitor Statistics

People in the United States use Microsoft Outlook the most

7 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

With robust features, highly customizable options, and seamless integration within the Microsoft ecosystem make Microsoft Outlook one of the most robust and popular email clients globally.

In this comprehensive guide, we will explore the email client market share and historical trends and compare it with its major competitors.

With over 400 million users worldwide, Microsoft Outlook is one of the most extensively used email services.

More than347 billionemails are exchanged every day.

Current Market Share of Microsoft Outlook

Current Market Share of Microsoft Outlook

Global Market Share

Microsoft Outlook has been persistent with its productivity-enhancing features and is becoming simpler to use and personalize.

According to SimilarWeb, with a global ranking of3, Microsoft Outlook boasts over3.17 millioncompanies using the email client.

It maintains a dominant market share of40.28%, followed by Gmail at35.69 %, MailChimp at8.33 %, and Microsoft Office 365 at4.56%in the email management category. Here are some other competitors with their market share:

However, if we talk about the most used email clients worldwide, Apple and Gmail have surpassed Outlook.

According to thelatest data, Apple Mail is58.09%, Gmail is28.72 %, and Outlook holds a4.14%market share in most used email. Here are the details:

Theglobal website rank was700in May 2023 but decreased to787in three months, which suggests a shift in online popularity.

It also indicates potential changes in user engagement or competitive dynamics within the digital landscape.

However, it has successfully maintained its category rank, demonstrating its continued relevance and ability to stay competitive within its niche.

Regional Market Share

Microsoft Outlook boasts a diverse customer base across various geographic locations worldwide.

With its calendaring and other productivity features, Outlook has gained popularity in email management across different continents, with1,505,729customers in the United States,306,088in the United Kingdom, and154,088in Germany. Here are more details:

This widespread adoption across different geographies showcases Outlook’s impact in improving user communication and organization.

If we segregate the data further, we can see that32.54 %of customers in the United States use a Desktop to log in or use Outlook.com, followed by5.59%in the United Kingdom and3.64 %in France.

According to a report by Similar Web, Outlook.com has a56.83%male audience and43.17%female. If we talk about the age distribution, the age group that visits it mostly is25-34on desktop. Here are the details:

Regarding Device distribution, the monthly visits percentage via the mobile web is92.34%worldwide, and7.66%of people use the website on a desktop.

Over85%of Outlook users check their emails from their mobile devices.

Industry-Specific Market Share

Microsoft Outlook is a popular choice for email management in the Information Technology and Services industry. The primary users of its services are the companies with50-200employees and with revenue ranging between1M and 10Mdollars. Here are other details:

According to enlyft,Of companies using Microsoft Outlook,35 %of them are small, i.e, less than 50 employees,47%are medium-sized, and17%are large, i.e, more than 1000 employees. Here is the graph to help you understand the percentage of companies using the service :

If we talk about the percentage of companies using Microsoft Outlook based on the revenue they generate,69%of the companies are small (<$50M),15%are large (revenue – >$1000M), and9 %are medium.

More than87%ofFortune 500companies rely on Microsoft Outlook, which indicates its reliability and powerful influence.

With the shift in trends and technology, Microsoft Outlook’s market share and stats have been experiencing fluctuations over the past few years.

Though it managed to maintain its place in the world’s top ten most-used email clients, it has faced a decrease in the percentage of users.According to Litmus, 2014, it was9%, and in 2023, it reached4.14. Here are more details:

The rank of the email client has also changed, ranging from4thto6thplace for years.2014, it held the 4th rank, then dropped to5thplace in2015and remained there for three years.

In2022, Microsoft Outlook rose above in ranks and is in3rdposition and has maintained the position in the subsequent year, while Outlook.com is in6thplace.

If you think Outlook is complicated and want to check outanother email client, check out this guide for options.

Outlook’s Major Competitors

Introduced in 1997, Microsoft Outlook has always been helpful as an email client and task management tool, but there are others in the competition, too.

Gmail by Google and Apple Mail by Apple.Inc., are its formidable competitors and capture a vast market share in the email management industry. Here is the list of competitors of Outlook recorded in 2023:

Benefits and Drawbacks of Microsoft Outlook Compared to its Competitors

Microsoft Outlook has been in the race for a long time and has undergone many changes. It has the upper hand over its competitors due to its seamless integration and productivity features but also has a few drawbacks when compared to others. Here we are comparing it with its top two contenders:

In the digital landscape, efficient communication is essential, and with rapid growth in the Email market, the email client market share will continue to change.

With itsextensive range of features, seamless integration with Teams and Office 365, and compatibility with mobile devices, Outlook enhances productivity, helps users with efficient email management, and will likely stay in the game for a long time.

Its substantial market share and user statistics are evidence of people’s reliance on the email client. Another popular product by Microsoft is Windows, and if you want to know about itslatest iteration’s market share, user base, and other insights, read this post.

If you know any other interesting facts about Microsoft Outlook or want to share your experience using its desktop or mobile app, feel free to mention them in the comments section below.

Srishti Sisodia

Windows Software Expert

Srishti Sisodia is an electronics engineer and writer with a passion for technology. She has extensive experience exploring the latest technological advancements and sharing her insights through informative blogs.

Her diverse interests bring a unique perspective to her work, and she approaches everything with commitment, enthusiasm, and a willingness to learn. That’s why she’s part of Windows Report’s Reviewers team, always willing to share the real-life experience with any software or hardware product. She’s also specialized in Azure, cloud computing, and AI.

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Srishti Sisodia

Windows Software Expert

She is an electronics engineer and writer with a passion for technology. Srishti is specialized in Azure, cloud computing, and AI.

Reviewed byAlex Serban