We have 2,000 users supported by this solution.
ICT LAN Administrator at Zambia Revenue Authority
Scalable hosted messaging solution that highlights mailboxes that have experienced a violation
Pros and Cons
- "The best part of this solution is the security it offers."
- "This solution involves a lot of work for an administrator. It is not always easy to find exactly what you are looking for within the system."
What is our primary use case?
What is most valuable?
The best part of this solution is the security it offers. Where we are able to determine which mailboxes have been blocked, or which mailboxes cannot be allowed to send traffic because of a violation.
What needs improvement?
This solution involves a lot of work for an administrator. It is not always easy to find exactly what you are looking for within the system. Microsoft can do better in terms of security and offer solutions to deal with phising, BOMB and viruses.
For how long have I used the solution?
I have been using this solution for two years.
Buyer's Guide
Microsoft Exchange Online
May 2025

Learn what your peers think about Microsoft Exchange Online. Get advice and tips from experienced pros sharing their opinions. Updated: May 2025.
851,823 professionals have used our research since 2012.
What do I think about the stability of the solution?
This is a stable solution.
What do I think about the scalability of the solution?
This is a scalable solution, especially if you make use of many Microsoft products.
How are customer service and support?
The technical support for this solution is really good. I would rate it a nine out of ten.
How was the initial setup?
The initial setup is very complex.
What's my experience with pricing, setup cost, and licensing?
This is an expensive solution.
Which other solutions did I evaluate?
We did evaluate other options including Zimbra.
What other advice do I have?
I would rate this solution a nine out of of ten.
Which deployment model are you using for this solution?
Private Cloud
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Microsoft Azure
Disclosure: I am a real user, and this review is based on my own experience and opinions.

Project Manager at a tech vendor with 10,001+ employees
Great for collaboration and syncing calendars with good reliability
Pros and Cons
- "The solution has been stable with good performance on offer."
- "The solution could be a bit cheaper."
What is our primary use case?
We use Microsoft Exchange for sending emails and running calendars. With the calendars, we are able to check other people's calendars and be sure of their availability so that they can deploy solutions. That's what we normally use it for.
What is most valuable?
The solution is great for collaboration purposes.
The calendar capabilities are great.
The solution has been stable with good performance on offer.
The product can scale.
What needs improvement?
The solution could be a bit cheaper.
I'd like it to be more voice-activated and to have more AI so that it becomes easier to use. The world is moving toward more AI and machine learning, and likely they will adopt more of it in the future.
For how long have I used the solution?
We just migrated to the solution. We've used it maybe for about a year and a half so far.
What do I think about the stability of the solution?
The solution is very stable and reliable. There are no bugs or glitches. It doesn't crash or freeze.
What do I think about the scalability of the solution?
I've not had any problem with it personally in terms of scaling. Due to the fact that it's connected, it pulls everything down. I'm able to do whatever is needed of me with it without stress.
Everybody is using it now in the company. If it was not scalable, I don't believe over 100,000 staff members could be using it without issues. It has to be scalable.
If we want to increase usage, we simply purchase more licenses.
How are customer service and support?
I've not had any contact with tech support. It's been very stable for me. There has been no need.
How was the initial setup?
I'm not part of the team that does the installation. That said, I know that Exchange should be good in terms of implementation. In the mailing lists that I used to install, the installation was straightforward. If you get your configurations right, it works. It works well without any trouble. This is Mircosoft. I'm sure it's fine to install.
What's my experience with pricing, setup cost, and licensing?
You do need to pay a licensing fee in order to access the solution. There are also enterprise agreements where companies would have to agree to a certain level of volume.
It could be less expensive. If it was, more companies would use it.
What other advice do I have?
I'm an end-user.
I would recommend the solution to others and rate it at a ten out of ten. It's in the Cloud; people don't need to have anything on-site or to worry themselves with problems any longer. Microsoft takes care of the back end while companies can focus on their day-to-day work and be more productive.
Which deployment model are you using for this solution?
Public Cloud
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Buyer's Guide
Microsoft Exchange Online
May 2025

Learn what your peers think about Microsoft Exchange Online. Get advice and tips from experienced pros sharing their opinions. Updated: May 2025.
851,823 professionals have used our research since 2012.
IT Support Specialist at Wagner Kablo A.S.
Highly scalable solution with excellent webmail platform
Pros and Cons
- "Exchange Online's best feature is its webmail platform."
- "Exchange Online has issues with its mail flow and content search."
What is most valuable?
Exchange Online's best feature is its webmail platform.
What needs improvement?
Exchange Online has issues with its mail flow and content search.
For how long have I used the solution?
I've been using Exchange Online for two years.
What do I think about the stability of the solution?
Exchange Online is stable.
What do I think about the scalability of the solution?
Exchange Online is very scalable
How was the initial setup?
The initial setup was very basic.
What about the implementation team?
I implemented Exchange Online myself.
What's my experience with pricing, setup cost, and licensing?
We have a yearly license for Exchange Online.
What other advice do I have?
I would recommend Exchange Online to other users and rate it nine out of ten.
Which deployment model are you using for this solution?
Public Cloud
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Security Specialist at Engen
Easy to use and scalable
Pros and Cons
- "Microsoft Exchange Online is an easy-to-use solution."
- "We would like to have more automation with Microsoft Exchange Online."
What is our primary use case?
I am using Microsoft Exchange Online for email.
What is most valuable?
Microsoft Exchange Online is an easy-to-use solution.
What needs improvement?
We would like to have more automation with Microsoft Exchange Online.
For how long have I used the solution?
I have been using Microsoft Exchange Online for two years.
What do I think about the scalability of the solution?
We have approximately 3,000 used in my company using this solution.
The solution is scalable.
How are customer service and support?
I have not contacted support.
Which solution did I use previously and why did I switch?
I have not used other solutions previously.
What's my experience with pricing, setup cost, and licensing?
There is an annual license required to use this Microsoft Exchange Online.
What other advice do I have?
I would recommend this solution to others.
I rate Microsoft Exchange Online an eight out of ten.
Which deployment model are you using for this solution?
Public Cloud
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Manager IT Projects & Systems Integration at a transportation company with 5,001-10,000 employees
Review about Microsoft Exchange Online
Pros and Cons
- "The initial setup was straightforward."
- "When initially setting up, it took a bit of time because we had a lot of PST files with the users, and we had to migrate them batch by batch."
- "Also, I think the mobile app on the forms you can improve a little bit more."
What is our primary use case?
My primary use case for this solution is for clumping emails, and group emails according to the conversation. It helps us sift through 100s of emails.
How has it helped my organization?
This solution helped us reduce a lot of overhead.
What needs improvement?
I would love to have a feature that transfers my notes that I have written on my laptop to my mobile device. Also, I think the mobile app on the forms you can improve a little bit more.
For how long have I used the solution?
More than five years.
What do I think about the stability of the solution?
I have not encountered any issues with stability of the product at all.
What do I think about the scalability of the solution?
We have roughly 500 people using this product in our organization. We have had no problem scaling it with our users.
How was the initial setup?
The initial setup was straightforward. But, it took a bit of time because we had a lot of PST files with the users, and we had to migrate them batch by batch.
Which other solutions did I evaluate?
I am familiar with Google and G Suite. I do not have personal comparisons between the two.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Information security consultant at Ypsilon System
Is easy to use, easy to set up, and stable
Pros and Cons
- "I like that Exchange Online is easy to use and that I do not need to maintain the previous Exchange Server. I also do not need to worry about the security of the Exchange Server. If there are any issues, then it will be the service provider's problem and not mine."
- "Microsoft needs to lower the price of the extra production add-ins for Exchange Online."
What is most valuable?
I like that Exchange Online is easy to use and that I do not need to maintain the previous Exchange Server. I also do not need to worry about the security of the Exchange Server. If there are any issues, then it will be the service provider's problem and not mine.
What needs improvement?
Microsoft needs to lower the price of the extra production add-ins for Exchange Online.
For how long have I used the solution?
I just switched to Microsoft Exchange Online two months ago but have been using the on-premises version for a year.
What do I think about the stability of the solution?
It has been stable so far.
What do I think about the scalability of the solution?
I believe that it is scalable. At present, we have three users.
How was the initial setup?
It's very easy to set up. It can be done in one hour by one person. Also, one person can handle the maintenance as well.
What other advice do I have?
I would rate this solution at nine on a scale from one to ten and would recommend it as well.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Network and Security consultant at a energy/utilities company with 201-500 employees
It is a scalable product. We easily use it for 500 employees.
Pros and Cons
- "It is a scalable product. We are using it for 500 users."
- "I have found that Microsoft has vulnerabilities when it comes to Exchange Online. It has become the port of a lot of hacker attacks."
What is our primary use case?
I have found that Exchange Online is a wonderful product with good capabilities to manage the administration of my business.
What needs improvement?
I have found that Microsoft has vulnerabilities when it comes to Exchange Online. It has become the port of a lot of hacker attacks. We investigated the issue, and opened a ticket and the support told us to upgrade from E3 to E5. We upgraded, but we found ourselves still being attacked daily.
In addition, I cannot see good reporting tools. The vulnerability in security is in dire need of improvement. If anyone has a username or a password of an admin, you can access and then go live for everything. Microsoft suggests a two-factor authentication to resolve the issue. But, it is not always helpful.
For how long have I used the solution?
One to three years.
What do I think about the scalability of the solution?
It is a scalable product. We are using it for 500 users at present. It is a sizeable network.
How is customer service and technical support?
The tech support is good. If I have issues, they respond within an hour of my call. They are generally knowledgeable and provide solutions.
How was the initial setup?
The setup was easy, and took only an hour.
What was our ROI?
This solution really does save us a lot of time. And, we saved a significant amount of money by using this service.
What's my experience with pricing, setup cost, and licensing?
We have a license per user scenario.
Which other solutions did I evaluate?
We have looked at FireEye and Dynatrace as possible other options for protection. We also considered Trend Micro for sandbox protection.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Manager at global trading
Overall easy to use, user friendly, and cloud based
Pros and Cons
- "I have found the interface to be user-friendly and the overall simplicity valuable features."
- "The solution should have a stand-alone application instead of us having to go through an internet browser."
What is most valuable?
Having the solution on the cloud has alleviated the need to have hardware on-premises. I no longer have to deal with the expense of power usage and the hardware taking up space. It is much better for us, we can now focus more on the business instead of our assets.
I have found the interface to be user-friendly and the overall simplicity valuable features.
What needs improvement?
The solution should have a stand-alone application instead of us having to go through an internet browser.
For how long have I used the solution?
I have been using this solution for approximately five years.
What do I think about the stability of the solution?
The solution is stable.
What do I think about the scalability of the solution?
In my experience Microsoft Exchange Online is scalable. We have approximately 10 people using this solution in my organization.
How was the initial setup?
We have three technicians that do the deployment and maintenance for the solution.
What's my experience with pricing, setup cost, and licensing?
There is a license required for the solution and it is paid annually.
What other advice do I have?
I would recommend this solution to others.
I rate Microsoft Exchange Online an eight out of ten.
Which deployment model are you using for this solution?
Public Cloud
Disclosure: I am a real user, and this review is based on my own experience and opinions.

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Updated: May 2025
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