The most important feature I like in Microsoft Outlook is its mail-sorting capability, which helps me organize emails efficiently by date, sender, category, flag status, size, and importance. I can also prioritize my work in Outlook by sorting messages by flag status, importance, and date, so urgent emails, key items, and pending actions get handled first. Overall, Outlook boosts my productivity through seamless integration with Microsoft 365 tools, efficient email and task management, a strong return on investment, and reliable support with straightforward onboarding for users. Review collected by and hosted on G2.com.

One limitation of Microsoft Outlook is its attachment size restriction, which is typically below 25 MB for desktop mail accounts. This can make it difficult to send large files directly. Review collected by and hosted on G2.com.

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 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

I like many things about MS outlook. the best part of outlook is its very useful integration with MS 365 tolls like teams, calendar, etc. This platform i s very fast and handles high email vlumes and capacity. Its onboarding process is very seamless and is very simple . Built in AI features like copilot totally justify its ROI. It helps to in day to day collaborations. Review collected by and hosted on G2.com.

the UI / UX can feel very overly complex compared to lighter more modern email. the downside of outlook is system resource consumtion. Review collected by and hosted on G2.com.

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.

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.

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.

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.