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Mimecast Email Security vs Trustwave Secure Email Gateway comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 5, 2024

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 Email Security
Ranking in Secure Email Gateway (SEG)
4th
Average Rating
8.0
Reviews Sentiment
6.2
Number of Reviews
30
Ranking in other categories
Office 365 Protection (4th)
Trustwave Secure Email Gateway
Ranking in Secure Email Gateway (SEG)
13th
Average Rating
7.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2025, in the Secure Email Gateway (SEG) category, the mindshare of Mimecast Email Security is 11.6%, down from 16.1% compared to the previous year. The mindshare of Trustwave Secure Email Gateway is 0.7%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG)
 

Featured Reviews

ShaheenKapery - PeerSpot reviewer
Provides valuable security features and has a straightforward setup process
The initial setup process is straightforward and takes a weekend at most. A .com domain can take up to forty-eight hours, while a local domain takes about four to eight hours because it has to propagate through the international DNS records. It is a cloud-only solution. If you're managing email security on-premises, you use your bandwidth to download emails, including spam, and then use your servers to clean it up. For example, say a third of your email is spam; this consumes significant bandwidth and resources. However, if you use Mimecast, they filter the emails on their servers before delivering them to you. It can be a major selling point in regions with expensive bandwidth, such as Africa. You can save bandwidth and improve overall efficiency by offloading the spam filtering to Mimecast.
FA
Offers clear vision on the clear side of what is being blocked and easy to use but a bit old-fashioned GUI
I would rate my experience with the initial setup a four out of ten when one is difficult, and ten is easy. It's difficult initially since it's an on-premise solution. So it's a bit difficult. So the initial assessment took a few days, and then the deployment was a couple of days. It is on-prem. That is also one of the improvements you need to make on the cloud. Most of the people like things to be on the cloud. You don't have the burden of setting up things on-premise.

Quotes from Members

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

Pros

"The most valuable feature is the DMARC Analyzer."
"It's good, it keeps the spam out."
"The setup was easy."
"What I like about the integration is that it is directly into Microsoft 365, users can use their Microsoft 365 credentials to log into the portal and access their mail."
"I would rate Mimecast Email Security a nine out of ten."
"The platform's most valuable features are journaling and email archiving, effectively stopping phishing attacks."
"The piece that is most valuable from the Mimecast standpoint will be the sandboxing feature."
"The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other communications, making it reliable. The configuration is relatively easy."
"I like that it doesn't hold emails for any reason; it sends out notifications to the user as well as administrators. So we have a clear vision on the clear side of what is being blocked and in time as well."
"The product's most valuable features are spam protection and artificial intelligence."
 

Cons

"The feature that should be included is to remove the block on the encrypted files."
"While it's quick and easy, the initial setup could be more user-friendly."
"I did have a problem with Mimecast. That is why I was looking for an alternative solution because their sender IP address gets poorly rated by Microsoft."
"We have subscribed to an archival service, and yet, when we have to get our data out, we have to pay a fee to get our own data. They charge an extraction fee."
"Mimecast needs to reduce the number of false positive emails; a big pain point for us."
"The solution should include more AI features instead of Mimecast's more general static configuration tooling."
"External security features need improvement."
"They should improve the cookies management feature."
"There is room for improvement in GUI because it is a bit old-fashioned."
"The technical support services and stability need improvement as well."
 

Pricing and Cost Advice

"We pay monthly fees to our provider."
"It is a bit expensive."
"The licensing costs are per-user for the product that you get with them."
"There are additional costs beyond the standard licensing fee."
"Compared to the other solutions in the market, Mimecast Email Security with Targeted Threat Protection's pricing is fine."
"The product price is moderate. I rate the pricing a five out of ten."
"The solution is expensive."
"It's an expensive solution."
"It is a cost-effective product."
"The pricing is in the middle. Compared to other products, it should be five out of ten, where one is cheap and ten is expensive."
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Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
855,347 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
8%
Manufacturing Company
7%
Retailer
5%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

What do you like most about Mimecast Email Security with Targeted Threat Protection?
The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other communications, making it reliable. The configuration is relatively easy.
What is your experience regarding pricing and costs for Mimecast Email Security with Targeted Threat Protection?
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
What needs improvement with Mimecast Email Security with Targeted Threat Protection?
There is nothing that notably stands out in need of improvement at present.
What do you like most about Trustwave Secure Email Gateway?
I like that it doesn't hold emails for any reason; it sends out notifications to the user as well as administrators. So we have a clear vision on the clear side of what is being blocked and in time...
What is your experience regarding pricing and costs for Trustwave Secure Email Gateway?
The pricing is in the middle. Compared to other products, it should be five out of ten, where one is cheap and ten is expensive.
What needs improvement with Trustwave Secure Email Gateway?
There is room for improvement in GUI because it is a bit old-fashioned. Moreover, it can add more advanced features compared to a competitor like Mimecast.
 

Also Known As

Mimecast Email Security with Targeted Threat Protection
Trustwave SEG
 

Overview

 

Sample Customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Information Not Available
Find out what your peers are saying about Mimecast Email Security vs. Trustwave Secure Email Gateway and other solutions. Updated: April 2025.
855,347 professionals have used our research since 2012.