Microsoft Outlook

By Microsoft

4.5/5(3,517)
4.5 out of 5 stars

How would you rate your experience with Outlook?

Microsoft Outlook Reviews & Product Details

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Value at a Glance

Averages based on real user reviews.

Time to Implement

1 month

Return on Investment

13 months

User Insights

Average based on 3517 real user reviews.

Implementation Time

1 month

Perceived Cost

$$$$$

Microsoft Outlook Reviews (3,517)

View 9 Video Reviews
Reviews

Microsoft Outlook Reviews (3,517)

View 9 Video Reviews
4.5
3,517 reviews

What do users say?

Generated using AI from real user reviews
Users consistently praise Microsoft Outlook for its seamless integration of email, calendar, tasks, and contacts, which enhances productivity and organization. The platform's ability to manage high volumes of communication effectively is a key reason for its popularity, although some users note that the interface can feel cluttered and overwhelming for newcomers.

Pros & Cons

Generated from real user reviews
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Jay C.
JC
Jay C.
Business Development Executive
Mid-Market (51-1000 emp.)
"All-in-One Email, Calendar, and Tasks—Outlook Keeps Me Organized"
3.5/5
What do you like best about Microsoft Outlook?

What I like best about Microsoft Outlook is how seamlessly it consolidates email, calendar, tasks, and contacts into a single, unified hub. Instead of juggling separate apps, I can turn an email thread into a calendar invitation with just a couple of clicks Outlook automatically pulls the conversation’s context, suggests available time slots, and even tracks RSVPs. I also love converting important messages into flagged to-do items, which then appear right alongside my tasks and calendar events, so nothing slips through the cracks. When I need to dig up an old attachment or a specific message from months ago, the search function feels almost instant and remarkably precise, filtering by sender, date, keyword, or folder without frustration. That level of integration doesn’t just save clicks it transforms Outlook from a basic email client into a command center for my daily workflow, reducing mental clutter and letting me focus on what actually needs to get done. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

What I dislike most about Microsoft Outlook is how often its performance grinds to a halt especially when I’m dealing with a large mailbox or older PST files that have accumulated years of email history. What should be a simple click to open a message or switch folders can turn into a spinning cursor and several seconds of frustrating delay. The search function, which I otherwise admire, occasionally betrays me by failing to locate an email I know exists even when I type the exact subject line or sender name forcing me to manually hunt through folders like it’s 1999.

Crashes and sudden freezes are also more common than I’d like, and when Outlook does go down, the recovery process feels unnecessarily slow and clunky, sometimes taking several minutes to reopen and rebuild what was just lost. On top of that, the desktop version has grown bloated over the years packed with features I’ve never touched making the interface feel overwhelming and chaotic for new users who just want to send an email or set a reminder. Syncing issues across my desktop, mobile, and the web version add another layer of frustration: I’ve often found duplicate calendar entries, missing emails on one device that clearly exist on another, or read messages stubbornly staying marked as unread. And finally, the spam filtering leaves a lot to be desired obvious junk sneaks into my inbox with depressing regularity, while legitimate messages from colleagues or clients get banished to the junk folder without explanation. All of this adds up to a tool that, despite its power, can sometimes feel more exhausting than efficient. Review collected by and hosted on G2.com.

Velit T.
VT
Velit T.
Media Manager / Team Leader
Mid-Market (51-1000 emp.)
"Best Email App: Excellent Organization and Seamless Calendar Integration"
3.5/5
What do you like best about Microsoft Outlook?

Microsoft Outlook is the best email app I have used and the first. The way it lets me organize my emails with folders, rules, and categories is excellent. The calendar integration is seamless, making it easy to manage meetings and appointments alongside my emails in one place. It truly does the job and keeps everything well-organized. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

The Mac version of Microsoft Outlook is quite heavy on system resources. It tends to consume a lot of memory and can slow down the Mac, especially when running alongside other applications. This can be frustrating for Mac users. Hopefully future updates will optimize the performance on macOS. Review collected by and hosted on G2.com.

Manogya T.
MT
Manogya T.
Regional Marketing Head (North & East)
Enterprise (> 1000 emp.)
"A reliable and convenient platform for emails & businesses communication"
4.5/5
What do you like best about Microsoft Outlook?

Microsoft Outlook has helped me in better management of corporate networks. It is more than just a normal email app for me because it helps in managing my calender and meetings better. I like its clean features unlike other apps. It actually has helped me in keeping my more important and less important emails separate. I can access it anywhere and on any device Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

I feel it serves offline constraints. It is less accessible and inconvenient in case of less internet bandwidth. Review collected by and hosted on G2.com.

Shoaib S.
SS
Shoaib S.
People and Culture Officer
Consulting
Small-Business (50 or fewer emp.)
"Seamless Multi-Email Sync and Organization in Classic Outlook"
4.5/5
What do you like best about Microsoft Outlook?

The ability to add and organize all my emails, regardless of which domain they belong to, is a big plus. I can have my work email and my personal emails all added within the same program, and everything works seamlessly. The sync between external email providers and the Outlook-integrated ones is smooth and reliable.

They have released a NEW OUTLOOK version, but the classic is still what I stick to. Performance-wise, the web version is the fastest way to get around, and then the native applications come next. It’s also very easy to use, with multiple view options such as conversation view or individual email views. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

The new Outlook experience, although similar to the web experience, still lacks a few features, such as the ability to archive online or have shared inboxes sync properly. That said, based on how their customer service and support team operate, I’m pretty sure these features will be integrated into the new experience soon. Review collected by and hosted on G2.com.

AJ
Ashish J.
Associate Systems Analyst
Information Technology and Services
Mid-Market (51-1000 emp.)
"Powerful Microsoft 365 Integrations, but the UI Can Feel Cluttered"
3.5/5
What do you like best about Microsoft Outlook?

I use Outlook every day as a GMT engineer, and it’s pretty central to how I work. The biggest thing for me is how well it connects with tools like Microsoft Teams and Power Automate. I’ve set up a few workflows where alerts coming into my inbox automatically trigger tasks or notify the team, which saves me a lot of manual effort each week.

The interface is straightforward, and features like Quick Steps and Focused Inbox help when I’m dealing with a lot of emails. Recently, the AI features have actually been useful too - being able to quickly summarize long email threads has saved me time more than I expected.

Since it’s already included in our Microsoft 365 setup, it’s an easy choice, and there’s plenty of documentation online if you need to set up something more advanced. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

One thing I feel could be improved is the UI - it works well, but it doesn’t always feel as modern or minimal as it could be. Sometimes the interface can feel a bit cluttered, especially when you’re switching between mail, calendar, and settings. It’s not a dealbreaker since everything is functional, but a cleaner and more streamlined design would make the overall experience smoother, especially for new users. Review collected by and hosted on G2.com.

Diego T.
DT
Diego T.
Manager, Knowledge Management & Digital Adoption
Mid-Market (51-1000 emp.)
"Seamless Microsoft Suite Integration for a More Collaborative, Organized Inbox"
5/5
What do you like best about Microsoft Outlook?

The best thing about Microsoft Outlook is its integration with the rest of the Microsoft apps in the enterprise suite. The ability to switch between OneDrive, Tasks, Copilot, and use Loop components directly in an email makes it truly collaborative. It's also my favorite email app for organizational purposes. I find it much easier to organize emails the way you prefer than in Gmail. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

Depending on the org you work for, you may find performance and the UI are not as fast or pleasing with Outlook Classic, which, unfortunately, some are still on. Product adoption and user onboarding is totally dependent on someone walking you through the app, as it may not be as intuitive as other email apps. Review collected by and hosted on G2.com.

John L.
JL
John L.
Commodity Futures Trader
Small-Business (50 or fewer emp.)
"Essential Microsoft 365 Integration with Scheduling Assistant That Keeps Me Organized"
4.5/5
What do you like best about Microsoft Outlook?

The integration with the rest of the Microsoft 365 suite is essential for how I work. I really like that I can drag and drop emails into my calendar to create appointments, and share OneDrive files without having to leave the app. The “Scheduling Assistant” is a lifesaver when I’m trying to find meeting times across a busy team, and the “Rules” and “Folders” features help keep my inbox organized so it doesn’t turn into a total disaster. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

The search function can be surprisingly flaky for such a powerful tool. Sometimes it won’t find an email I know is there unless I use very specific search parameters. It can also be pretty heavy on system resources—when I’m working with a large mailbox and have several other apps open, Outlook occasionally lags or takes a long time to index new messages. Review collected by and hosted on G2.com.

MOHIT C.
MC
MOHIT C.
Business Intelligence Developer
Consulting
Mid-Market (51-1000 emp.)
"Microsoft Outlook: Seamless M365 Integration with Powerful Scheduling and Automation"
5/5
What do you like best about Microsoft Outlook?

I suppose it’s the convenience of having everything at once. I do not need to switch between five separate applications to track my schedule, contact someone, or get something done. The Integration of the calendar makes life easier because I always know when my colleagues are free and make an appointment immediately, no emails involved. Search also helps me a lot since no matter how many emails I get, I can easily find that particular attachment within seconds. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

The major issue that annoys me is that Outlook is quite heavy on my computer. When too many tabs or other resource-intensive applications are running, Outlook becomes slow; for example, it takes longer to search past emails and open attachments. Another problem that I would like to highlight is the necessity to wait for the email to index or reboot the application to see it immediately after searching. Finally, there is one more issue that needs to be mentioned, although it is minor. Sometimes I receive alerts on my phone; however, my email does not appear on my computer screen within one or two minutes, it may be some integration or sync issue. Review collected by and hosted on G2.com.

Chirag A.
CA
Chirag A.
Software Automation Developer
Transportation/Trucking/Railroad
Enterprise (> 1000 emp.)
"An Essential Email & Calendar Hub with Smooth Performance and AI Copilot"
5/5
What do you like best about Microsoft Outlook?

This is one Single application without which I can't function and it's an absolute necessity in ever organization. It keeps tracks of my calendar, my day schedule and need not to mention the primary mailbox stuff.

I really like it's UI, and also the accessibility features including switching to themes, classic and modern modes. The integration of it across any SMTP servers, my automation tools, teams and any office365 based apps.

The performance is pretty smooth with no lags. Also with AI Copilot integration the intelligence system is top noch and helps me drafts my email perfectly. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

Trust me, I’ve never faced any major issues with Outlook, and I’ve never really felt the need for additional features.

The only problem I run into is with search. Sometimes, even when an email is definitely there, Outlook fails to find it and instead shows irrelevant emails based on the search text. It also occasionally doesn’t return older emails, especially ones that are more than two years old.

On my MacBook, Outlook also doesn’t display the extra mailboxes that have been set up as additional mailboxes; it only shows the primary mailbox. Review collected by and hosted on G2.com.

Rahul S.
RS
Rahul S.
IT Manager
Media Production
Enterprise (> 1000 emp.)
"All-in-One Organization with Microsoft Outlook"
5/5
What do you like best about Microsoft Outlook?

What I appreciate most about Microsoft Outlook is how it combines email, calendar, and contacts in one platform. I can easily switch from reading messages to scheduling meetings, thanks to the Focused Inbox and strong search features that keep clutter at bay. The scheduling assistant makes finding meeting times with colleagues simple. It's reliable, syncs well across devices, and integrates with Teams and OneDrive. While it may not be flashy, it effectively helps me stay organized and productive. Review collected by and hosted on G2.com.

What do you dislike about Microsoft Outlook?

Outlook has potential but often feels slow and bloated, especially with many emails and add-ins. While its settings and rules are powerful, they can be confusing and require too many clicks for simple adjustments. Features like Focused Inbox and automated filters may misclassify important messages. Although the search function is usually reliable, it can be slow and inconsistent. Additionally, calendar invites and device syncing can lead to issues like time zone errors and duplicate reminders. Overall, the app can feel overwhelming for those seeking a simpler experience. Improvements in these areas would greatly enhance usability. Review collected by and hosted on G2.com.

Questions about Microsoft Outlook? Ask real users or explore answers from the community

Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights.

GU
Guest User
Last activity 4 months ago

What are the latest integrations and features in Microsoft Outlook that enhance email communication and productivity?

GU
Guest User
Last activity about 2 months ago

What are the latest integrations and features in Microsoft Outlook that enhance email communication and productivity?

Pricing Insights

Averages based on real user reviews.

Time to Implement

1 month

Return on Investment

13 months

Average Discount

8%

Microsoft Outlook Comparisons
Microsoft Outlook Features
Filters
Reminders
Notifications
Calendar
Contacts
Desktop Application
Mobile Application
Multi-Calendar View
Customizable Viewing
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Outlook
4.5/5(3,517)