Microsoft Exchange Online Competitors and Alternatives

The top Microsoft Exchange Online competitors are
  • Kerio Connect
  • Zimbra Collaboration
  • IceWarp
  • IBM Lotus Notes
  • Novell GroupWise
Read reviews of Microsoft Exchange Online competitors and alternatives
Òscar Ortega
Real User
CEO at a tech services company with 11-50 employees
Mar 04 2018

What do you think of Zimbra Collaboration?

Primary Use Case: I work mainly with webmail. On the web, we have more than 10,000 accounts on our server • Improvements to My Organization: It is the best open source collaboration suite that I know, because it provides high availability and more performance than the other solutions. We can control all the data in my IT infrastructure. • Valuable Features: Shared folders Mobile synchronization Admin tools Anti-spam tools Webmail is simple and powerful. • Room for Improvement: Online documents edition File sharing permissions with Nextcloud integration More features for the open source edition Native HA for more virtualization platforms, like Proxmox • Use of Solution: More than five years.
IceWarp Logo
IceWarp
Marijn
Real User
Commercial - Technical at a cloud provider with 51-200 employees
Jan 29 2017

What is most valuable?

IceWarp offers very extended cross-platform communication solutions. For us as a hosting provider, that makes it the perfect platform to use. We can help any customer that contacts... more»

How has it helped my organization?

IceWarp is very open. That way, we were able to integrate it into our Hosting Control Panel, which makes it very easy to use for our customers.

What needs improvement?

There are some feature improvements possible the way we use it as a hosting provider, but for most we currently have workarounds. As with any communication suite, it's important... more»

Which other solutions did I evaluate?

IceWarp is still our first love.
Mario Treviño Salazar
Real User
Solution Architect for New Products and Services at a comms service provider with 1,001-5,000 employees
Feb 28 2017

What is most valuable?

Lotus Domino is an excellent platform for making groupware applications that are natively integrated with email. It... more»

How has it helped my organization?

We used Lotus Domino / Lotus Notes a lot few years ago for: * Corporate politics and procedures * Corporate phone book... more»

What needs improvement?

The problem with Lotus Domino is that there are no new versions of the product. The last version that I know is 9.x.

What's my experience with pricing, setup cost, and licensing?

I am not sure if IBM is still selling this product. Talking about the support, I think that it is average; it is not... more»

Which other solutions did I evaluate?

We are currently using the Office 365 solution; it has the advantage that now it's in the cloud and it can be accessed... more»

What other advice do I have?

Review the roadmap with IBM before trying to implement this solution, because I think that IBM is not investing in new... more»

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