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LevelBlue MailMarshal vs Symantec Messaging Gateway comparison

Why PeerSpot?
 

Comparison Buyer's Guide

Executive SummaryUpdated on Sep 24, 2026

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

LevelBlue MailMarshal
Ranking in Secure Email Gateway (SEG)
14th
Average Rating
7.0
Reviews Sentiment
7.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
Symantec Messaging Gateway
Ranking in Secure Email Gateway (SEG)
13th
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
20
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Secure Email Gateway (SEG) category, the mindshare of LevelBlue MailMarshal is 2.4%, up from 1.0% compared to the previous year. The mindshare of Symantec Messaging Gateway is 3.1%, up from 2.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Symantec Messaging Gateway3.1%
LevelBlue MailMarshal2.4%
Other94.5%
Secure Email Gateway (SEG)
 

Featured Reviews

FA
Cloud & Systems Admin at Service Management Group, Inc.
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.
Dennis O'Reilly - PeerSpot reviewer
Cyber SecOps Principal at Dotcom Security
The product provides good content filtering options, but the false positive submissions must be improved
The tool is very stable. I rate the stability a seven out of ten. It's an on-premise application that runs on a virtual machine. It has dependencies on the hypervisor host that we're running it on. If it's not configured, the application can be influenced by it. Sometimes, there is a service stop error while the service is still running. Sometimes, the service just stops. Some policies do not act the way that we intend them to respond.

Quotes from Members

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

Pros

"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."
"My advice to others who plan to use Symantec Messaging Gateway is that it's a very good product, it's very stable, and it's user-friendly, but the only problem is that it doesn't have good partner support here in Bolivia, where I'm located."
"Symantec Messaging Gateway is stable and scalable."
"Symantec Messaging Gateway has a huge knowledge base about phishing, spamming, spoofing, etc."
"It has very good capabilities for managing malware."
"The cloud-based interface is very user-friendly."
"Symantec Messaging Gateway is stable and scalable. Installation is easy, and the deployment and maintenance can be done by one administrative person."
"The solution is a leader in anti-spam email products and you can block 99% of spam emails, making it very effective with great performance."
"Symantec’s spyware and malware signature database is very good compared to other products."
 

Cons

"The technical support services and stability need improvement as well."
"There is room for improvement in GUI because it is a bit old-fashioned."
"What needs to be improved in Symantec Messaging Gateway is its local partner support, as it's not as technical."
"They have updated the version of the Messaging Gateway and the new features they are adding the need to be re-evaluated. They have done some changes on the policy."
"The biggest problem is it's an on-prem product and we're trying to get out of having equipment in data centers."
"We've had issues in the past where the user finds spam, and Symantec does not recognize it as spam."
"Symantec Messaging Gateway can improve detection because most of them are false negatives or false positives that we are trying to troubleshoot. Additionally, we are having routing problems and they are somehow connected to DNS issues."
"The false positive submissions must be improved."
"If the customer has to think about budget and solutions to reduce IT cost, they should get away from Symantec and try using Microsoft."
"Recently, I've had some problems regarding their support. The tech was acquired by Broadcom, and since then, the support part is very bad."
 

Pricing and Cost Advice

"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."
"A subscription for technical support costs extra."
"For 150 users, we pay INR 1,60,000."
"Symantec Messaging Gateway’s pricing is very cheap."
"It's a bit expensive compared to its competitor Barracuda Email Security Gateway but cheaper than Sophos Email."
"They're a little costly compared to Microsoft."
"The cost of Symantec Messaging Gateway is too expensive in general. However, the appliance also includes the price of the license in the same bundle."
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Top Industries

By visitors reading reviews
No data available
Outsourcing Company
19%
Construction Company
15%
Financial Services Firm
11%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise1
Large Enterprise9
 

Also Known As

Trustwave SEG
Symantec.cloud, Symantec Email Security.cloud
 

Overview

 

Sample Customers

Information Not Available
Doric, Joblink Plus, Our Lady of Mercy College, Parramatta, PPB Advisory, Slater & Gordon Lawyers, Sydney Adventist Hospital Ltd.
Find out what your peers are saying about LevelBlue MailMarshal vs. Symantec Messaging Gateway and other solutions. Updated: September 2026.
920,939 professionals have used our research since 2012.