Try our new research platform with insights from 80,000+ expert users

Symantec Messaging Gateway vs Tessian Guardian 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

Symantec Messaging Gateway
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
20
Ranking in other categories
Secure Email Gateway (SEG) (12th)
Tessian Guardian
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
Email Security (74th), Data Loss Prevention (DLP) (64th)
 

Mindshare comparison

While both are Messaging and Collaboration solutions, they serve different purposes. Symantec Messaging Gateway is designed for Secure Email Gateway (SEG) and holds a mindshare of 2.5%, down 3.0% compared to last year.
Tessian Guardian, on the other hand, focuses on Data Loss Prevention (DLP), holds 0.3% mindshare, up 0.1% since last year.
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Symantec Messaging Gateway2.5%
Microsoft Defender for Office 36524.2%
Proofpoint Email Protection20.3%
Other53.0%
Secure Email Gateway (SEG)
Data Loss Prevention (DLP) Market Share Distribution
ProductMarket Share (%)
Tessian Guardian0.3%
Microsoft Purview Data Loss Prevention8.9%
Varonis Platform6.5%
Other84.3%
Data Loss Prevention (DLP)
 

Featured Reviews

Girish Vijay - PeerSpot reviewer
Deputy Manager IT at Carl Bechem Lubricants India Pvt. Ltd.
A stable and reasonably priced solution that performs well and has a very good malware database
Since Symantec merged with Broadcom, they might have lost some good technical engineers. Maybe that’s the reason why the product is performing poorly. When we have a good marketing and sales team, even though our product cannot perform, we will sell it at a high price because of the buzzwords. However, at the end of the day, the product should perform. Most of the products might not perform. Symantec is a very good product, but the services are basic. I rate the technical features of the product a nine out of ten. However, I would rate the services provided by the solution a six out of ten. Overall, I rate the tool an eight out of ten.
Use Tessian Guardian?
Leave a review
report
Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
879,455 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
17%
Computer Software Company
13%
Manufacturing Company
8%
Government
8%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise1
Large Enterprise8
No data available
 

Also Known As

Symantec.cloud, Symantec Email Security.cloud
No data available
 

Overview

 

Sample Customers

Doric, Joblink Plus, Our Lady of Mercy College, Parramatta, PPB Advisory, Slater & Gordon Lawyers, Sydney Adventist Hospital Ltd.
Affirm, Choate, BMA, Evercore, Gubra, Accel, Fieldfisher, Clearwater, Man Group plc, Graphcore, Investec, Rightmove
Find out what your peers are saying about Microsoft, Proofpoint, Abnormal AI and others in Secure Email Gateway (SEG). Updated: January 2026.
879,455 professionals have used our research since 2012.