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Mimecast Mailbox Continuity vs OpenText Retain Unified Archiving comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Mimecast Mailbox Continuity
Ranking in Email Archiving
7th
Average Rating
8.0
Reviews Sentiment
6.1
Number of Reviews
6
Ranking in other categories
No ranking in other categories
OpenText Retain Unified Arc...
Ranking in Email Archiving
15th
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the Email Archiving category, the mindshare of Mimecast Mailbox Continuity is 4.6%, down from 5.7% compared to the previous year. The mindshare of OpenText Retain Unified Archiving is 1.1%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Archiving Market Share Distribution
ProductMarket Share (%)
Mimecast Mailbox Continuity4.6%
OpenText Retain Unified Archiving1.1%
Other94.3%
Email Archiving
 

Featured Reviews

Todd Blake - PeerSpot reviewer
Provides peace of mind and expands well but needs a better interface
It's a hosted solution. I'm not sure which version of the solution Im on at this time. I would advise others to research all the options out there and see what the best fit is. We started this mailbox continuity project before we moved to Office 365. And now that we've moved to Office 365, we kind of don't need this piece of technology in the same way that we used to need it when we had an on-prem exchange. Therefore, make sure that you actually need it and then research to find the best options. Overall, I would rate the solution seven out of ten.
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Also Known As

No data available
Micro Focus Retain Unified Archiving, Micro Focus Retain Email, Micro Focus Retain Archiving for Email
 

Overview

 

Sample Customers

DAC Beachcroft, OceanFirst, Currie & Brown, Alexander Forbes, Lagan Group, Lals Group, Greater Manchester Fire and Rescue Service, Wedlake Bell, Macmillan Cancer Support, Bech-Bruun
Roosevelt Island, PCS, The City of East Grand Rapids
Find out what your peers are saying about Microsoft, Barracuda Networks, Veritas and others in Email Archiving. Updated: August 2025.
867,836 professionals have used our research since 2012.