# Best Email Anti-spam Software - Page 5

## How Many Email Anti-spam Software Products Does G2 Track?

**Total Products under this Category:** 120

### Category Stats (Jul 2026)

- **Average Rating:** 4.46/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product:** INKY Email Security Platform (+0.86%) - Among all products in this category, INKY Email Security Platform recorded the largest rating increase compared to last month

_Last updated: July 31, 2026_

## How Does G2 Rank Email Anti-spam Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 5,400+ Authentic Reviews
- 120+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

## G2 Grid® for Email Anti-spam Software
 ![G2 Grid® for Email Anti-spam Software plotting products by satisfaction and market presence](https://www.g2.com/categories/email-anti-spam/grids.png?focus%5B%5D=30562&focus%5B%5D=112257&focus%5B%5D=115555&focus%5B%5D=15605&focus%5B%5D=118732&focus%5B%5D=25519&focus%5B%5D=129100&focus%5B%5D=127460)

Highlighted products: Proofpoint Core Email Protection, Check Point Email Security, Microsoft Defender for Office 365, SaneBox, Abnormal AI, Paubox, Libraesva Email Security, and Hornetsecurity 365 Total Protection.

Underlying data: [Grid® JSON](https://www.g2.com/categories/email-anti-spam/grids.json?focus%5B%5D=proofpoint-core-email-protection&focus%5B%5D=check-point-email-security&focus%5B%5D=microsoft-microsoft-defender-for-office-365&focus%5B%5D=sanebox&focus%5B%5D=abnormal-ai&focus%5B%5D=paubox&focus%5B%5D=libraesva-email-security&focus%5B%5D=hornetsecurity-365-total-protection)

**Sponsored**

### Prisma Browser for Business

Prisma Browser for Business is a secure web browser tailored for small businesses, integrating advanced security features directly into the browsing experience. Built on the Chromium platform, it offers a familiar interface while providing enterprise-grade protection against online threats such as phishing, ransomware, and data breaches. This solution enables teams to work seamlessly across various applications and AI tools, ensuring data security without the need for a dedicated IT team. Key Features and Functionality: - Proactive Threat Protection: Utilizes AI-powered threat scanning to detect and block phishing attempts, malware, and other cyber threats in real-time. - Data Loss Prevention: Implements controls to prevent accidental sharing of sensitive information, such as disabling copy/paste and file uploads to unauthorized platforms. - AI Interaction Management: Monitors and regulates AI tool usage to prevent unintended actions and data leaks, ensuring that business information remains secure. - User-Friendly Deployment: Offers a straightforward setup process with pre-configured security settings, allowing businesses to protect their teams without technical expertise. Primary Value and Problem Solved: Prisma Browser for Business addresses the critical need for robust cybersecurity in small businesses, which are increasingly targeted by sophisticated cyberattacks. By embedding security directly into the browser, it safeguards the primary workspace where employees spend the majority of their time. This solution not only protects against external threats but also mitigates risks associated with accidental data exposure through AI tools and other online platforms. By providing an easy-to-use, comprehensive security solution, Prisma Browser for Business empowers small businesses to focus on growth and productivity without compromising on security.

[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1628&secure%5Bchosen_at%5D=2026-07-31T12%3A02%3A09Z&secure%5Bdisplayable_resource_id%5D=1628&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1628&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1806417&secure%5Bresource_id%5D=1628&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Femail-anti-spam%3Fpage%3D5&secure%5Btoken%5D=e7e1e54115e1a47f007790b14f7ac06513efcc8dea01ae7dd2812ff6cd0a7ee6&secure%5Burl%5D=https%3A%2F%2Fwww.paloaltonetworks.com%2Fprisma-browser-for-business%3Futm_source%3Dg2-panw_inhouse-amer-sase-smco-sfow%26utm_medium%3Ddisplay%26utm_campaign%3Dg2-sase-prisma_browser_smb-amer-us-awareness-en-native-cat_com%26utm_content%3D701Ki000000p2UKIAY&secure%5Burl_type%5D=custom_url)

### [DuoCircle Spam Filtering](https://www.g2.com/products/duocircle-spam-filtering/reviews)

The DuoCircle enterprise email security with its SMTP gateway incorporates the features that you’d expect in an Enterprise Grade Spam Filtering solution at a fraction of the cost.

**Average Rating:** 4.5/5.0

**Total Reviews:** 2

#### How Do G2 Users Rate DuoCircle Spam Filtering?

- **Quality of Support:** 5.0/10 (Category avg: 9.0/10)
- **Ease of Use:** 9.2/10 (Category avg: 9.0/10)

#### Who Is the Company Behind DuoCircle Spam Filtering?

- **Seller:** [DuoCircle LLC](https://www.g2.com/sellers/duocircle-llc)
- **Year Founded:** 2014
- **HQ Location:** San Diego, CA
- **Twitter:** @duocirclellc  
130 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=8e4605f46895e23ff11f77078613f0250d987ad76b735a02760a3296aef1a1c6&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fduocircle%2Fabout&secure%5Burl_type%5D=linkedin_company_website)  
13 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are Recent G2 Reviews of DuoCircle Spam Filtering?

**["It is easy to use and very effective."](https://www.g2.com/survey_responses/duocircle-spam-filtering-review-9091757)**

**Rating:** 5.0/5.0 stars

_— abhishek g._

[Read full review](https://www.g2.com/survey_responses/duocircle-spam-filtering-review-9091757)

**["DuoCircle Spam Filter Review"](https://www.g2.com/survey_responses/duocircle-spam-filtering-review-9622945)**

**Rating:** 4.0/5.0 stars

_— Satyam C._

[Read full review](https://www.g2.com/survey_responses/duocircle-spam-filtering-review-9622945)

#### What Are G2 Users Discussing About DuoCircle Spam Filtering?

- [What is the best email filter?](https://www.g2.com/discussions/what-is-the-best-email-filter)
- [What is an email security filtering tool?](https://www.g2.com/discussions/what-is-an-email-security-filtering-tool)
- [How do these spam filters work?](https://www.g2.com/discussions/how-do-these-spam-filters-work)
- [What does spam filter software do?](https://www.g2.com/discussions/what-does-spam-filter-software-do)

### [spambarrier Cloud AntiSpam & AntiVirus](https://www.g2.com/products/spambarrier-cloud-antispam-antivirus/reviews)

Premium spam and virus protection for your domain. Without user or traffic limit. Easy setup, learning spam filter, the power of the cloud.

**Average Rating:** 4.8/5.0

**Total Reviews:** 2

#### How Do G2 Users Rate spambarrier Cloud AntiSpam & AntiVirus?

- **Quality of Support:** 10.0/10 (Category avg: 9.0/10)
- **Ease of Use:** 9.2/10 (Category avg: 9.0/10)

#### Who Is the Company Behind spambarrier Cloud AntiSpam & AntiVirus?

- **Seller:** [Huestel GmbH](https://www.g2.com/sellers/huestel-gmbh)
- **HQ Location:** Augsburg, DE
- **Twitter:** @pushmailhosting  
6 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=cf850304026d4bb534ae2a8bb0f6f4c7ec2798b37323d3ed8d61ded0f19e7bf1&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F5581646&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are Recent G2 Reviews of spambarrier Cloud AntiSpam & AntiVirus?

**["One Of The Best Spam Filters"](https://www.g2.com/survey_responses/spambarrier-cloud-antispam-antivirus-review-1708305)**

**Rating:** 5.0/5.0 stars

_— Rocky G._

[Read full review](https://www.g2.com/survey_responses/spambarrier-cloud-antispam-antivirus-review-1708305)

**["Keeping Viruses and Spam Away With This Awesome Product - Very Helpful and Impactful"](https://www.g2.com/survey_responses/spambarrier-cloud-antispam-antivirus-review-5082590)**

**Rating:** 4.5/5.0 stars

_— Alex K._

[Read full review](https://www.g2.com/survey_responses/spambarrier-cloud-antispam-antivirus-review-5082590)

#### What Are G2 Users Discussing About spambarrier Cloud AntiSpam & AntiVirus?

- [What is spambarrier Cloud AntiSpam & AntiVirus used for?](https://www.g2.com/discussions/what-is-spambarrier-cloud-antispam-antivirus-used-for)

### [SPAMfighter](https://www.g2.com/products/spamfighter/reviews)

SPAMfighter block the spam mail using spam filter application that comes with spam reporting, phishing attack protection, and automatic whitelist.

**Average Rating:** 4.8/5.0

**Total Reviews:** 2

#### How Do G2 Users Rate SPAMfighter?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 9.2/10)
- **Quality of Support:** 10.0/10 (Category avg: 9.0/10)
- **Ease of Admin:** 6.7/10 (Category avg: 8.9/10)
- **Ease of Use:** 10.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind SPAMfighter?

- **Seller:** [SPAMfighter](https://www.g2.com/sellers/spamfighter)
- **Year Founded:** 2003
- **HQ Location:** Copenhagen, DK
- **Twitter:** @spamfighter  
4,356 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=90e99a859bb1ce4171c5a8195484647ee531cd80e9c322d04ed490202f53e2a7&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fspamfighter&secure%5Burl_type%5D=linkedin_company_website)  
17 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 67% Small, 33% Medium

#### What Are Recent G2 Reviews of SPAMfighter?

**["Efficient product!"](https://www.g2.com/survey_responses/spamfighter-review-1783752)**

**Rating:** 4.5/5.0 stars

_— Verified User in Management Consulting_

[Read full review](https://www.g2.com/survey_responses/spamfighter-review-1783752)

**["Awesome product !!"](https://www.g2.com/survey_responses/spamfighter-review-1784144)**

**Rating:** 5.0/5.0 stars

_— Verified User in Education Management_

[Read full review](https://www.g2.com/survey_responses/spamfighter-review-1784144)

### [The Email Laundry](https://www.g2.com/products/the-email-laundry/reviews)

Anti-spam and virus service

**Average Rating:** 4.5/5.0

**Total Reviews:** 2

#### How Do G2 Users Rate The Email Laundry?

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.2/10)
- **Quality of Support:** 8.3/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.3/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.3/10 (Category avg: 9.0/10)

#### Who Is the Company Behind The Email Laundry?

- **Seller:** [The Email Laundry](https://www.g2.com/sellers/the-email-laundry)
- **Year Founded:** 2007
- **HQ Location:** Naas, IE
- **Twitter:** @theemaillaundry  
1,777 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7bfa4298629863277f4ed470a66b433a5ac7697aa4ae0d27916ccd891c110337&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fthe-email-laundry&secure%5Burl_type%5D=linkedin_company_website)  
3 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 50% Small

#### What Are Recent G2 Reviews of The Email Laundry?

**["Email Laundry is great for Spam Filtering"](https://www.g2.com/survey_responses/the-email-laundry-review-496320)**

**Rating:** 4.0/5.0 stars

_— Sara S._

[Read full review](https://www.g2.com/survey_responses/the-email-laundry-review-496320)

**["Anti Spam Service"](https://www.g2.com/survey_responses/the-email-laundry-review-30000)**

**Rating:** 5.0/5.0 stars

_— shruti S._

[Read full review](https://www.g2.com/survey_responses/the-email-laundry-review-30000)

#### What Are G2 Users Discussing About The Email Laundry?

- [What is The Email Laundry used for?](https://www.g2.com/discussions/what-is-the-email-laundry-used-for)

### [cybonet](https://www.g2.com/products/cybonet/reviews)

PineApp offers comprehensive email security, email archiving and web filtering solutions that are available as hardware or software.

**Average Rating:** 4.5/5.0

**Total Reviews:** 1

#### Who Is the Company Behind cybonet?

- **Seller:** [PineApp](https://www.g2.com/sellers/pineapp)
- **Year Founded:** 2002
- **HQ Location:** Haifa, IL
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=2f41a8c979f130bfe653ff6ee474d3037263b13ac78dd1ac32142ece79c30104&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fpineapp%2F&secure%5Burl_type%5D=linkedin_company_website)  
27 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are Recent G2 Reviews of cybonet?

**["Secure your mail and avoid threats with Cybonet"](https://www.g2.com/survey_responses/cybonet-review-5078842)**

**Rating:** 4.5/5.0 stars

_— Anuj J._

[Read full review](https://www.g2.com/survey_responses/cybonet-review-5078842)

#### What Are G2 Users Discussing About cybonet?

- [What is cybonet used for?](https://www.g2.com/discussions/what-is-cybonet-used-for)

### [Email Threat Detection and Response](https://www.g2.com/products/email-threat-detection-and-response/reviews)

Protect against the most sophisticated email threats and gain comprehensive insights into targeted & advanced email attacks

**Average Rating:** 4.4/5.0

**Total Reviews:** 5

#### How Do G2 Users Rate Email Threat Detection and Response?

- **Has the product been a good partner in doing business?:** 6.7/10 (Category avg: 9.2/10)
- **Quality of Support:** 8.0/10 (Category avg: 9.0/10)
- **Ease of Admin:** 6.7/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind Email Threat Detection and Response?

- **Seller:** [Broadcom](https://www.g2.com/sellers/broadcom-ab3091cd-4724-46a8-ac89-219d6bc8e166)
- **Year Founded:** 1991
- **HQ Location:** San Jose, CA
- **Twitter:** @broadcom  
63,909 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=093adce8015fea9ef126312884b465dc8e3c20e17dcb12fbb77a7bd82577e7a5&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fbroadcom%2F&secure%5Burl_type%5D=linkedin_company_website)  
55,094 employees on LinkedIn®
- **Ownership:** NASDAQ: CA

#### Who Uses This Product?

- **Company Size:** 67% Medium, 17% Large

#### What Are Recent G2 Reviews of Email Threat Detection and Response?

**["Best Email Security Platform by Symantec"](https://www.g2.com/survey_responses/email-threat-detection-and-response-review-8466687)**

**Rating:** 4.0/5.0 stars

_— Verified User in E-Learning_

[Read full review](https://www.g2.com/survey_responses/email-threat-detection-and-response-review-8466687)

**["Email prevention review and threat protection"](https://www.g2.com/survey_responses/email-threat-detection-and-response-review-8468706)**

**Rating:** 4.5/5.0 stars

_— velkumaresan M._

[Read full review](https://www.g2.com/survey_responses/email-threat-detection-and-response-review-8468706)

#### What Are G2 Users Discussing About Email Threat Detection and Response?

- [What are the three types of email threats?](https://www.g2.com/discussions/email-threat-detection-and-response-what-are-the-three-types-of-email-threats)
- [What are the three types of email threats?](https://www.g2.com/discussions/what-are-the-three-types-of-email-threats)
- [What are 4 methods of threat detection?](https://www.g2.com/discussions/what-are-4-methods-of-threat-detection)
- [What is threat detection & response?](https://www.g2.com/discussions/what-is-threat-detection-response)
- [What are email security features?](https://www.g2.com/discussions/what-are-email-security-features)

### [GFI MailEssentials](https://www.g2.com/products/gfi-mailessentials/reviews)

GFI FaxMaker is a leading digital fax solution that makes sending and receiving faxes simple, efficient, and affordable. It eliminates the hassles associated with manual faxing. GFI FaxMaker enables users to send and receive faxes directly from their email client and other applications. Your team will be able to: • Fax securely from anywhere using your computer, tablet or smartphone • Ensure security and compliance with regulations • Save time while having higher quality communications With GFI FaxMaker, the return on investment is high and the benefits of executing the solution can be realized literally in minutes.

**Average Rating:** 2.5/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate GFI MailEssentials?

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.2/10)
- **Quality of Support:** 6.7/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.3/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.3/10 (Category avg: 9.0/10)

#### Who Is the Company Behind GFI MailEssentials?

- **Seller:** [Aurea SMB Solutions](https://www.g2.com/sellers/aurea-smb-solutions)
- **Year Founded:** 1992
- **HQ Location:** Austin, US
- **Twitter:** @GFISoftware  
29,625 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=bf1b5abc1958327aa71d6caa3fcbbd586177e22419afc235da8bd5dbc22942fe&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fgfi-software&secure%5Burl_type%5D=linkedin_company_website)  
194 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Medium

#### What Are Recent G2 Reviews of GFI MailEssentials?

**["GFI Mail Essentials"](https://www.g2.com/survey_responses/gfi-mailessentials-review-4973890)**

**Rating:** 5.0/5.0 stars

_— Jean Y._

[Read full review](https://www.g2.com/survey_responses/gfi-mailessentials-review-4973890)

#### What Are G2 Users Discussing About GFI MailEssentials?

- [What is GFI MailEssentials used for?](https://www.g2.com/discussions/what-is-gfi-mailessentials-used-for)

### [GoSecure Titan Managed Security Platform](https://www.g2.com/products/gosecure-titan-managed-security-platform/reviews)

While GoSecure Professional Security Services focuses on finding the problems, GoSecure Titan® Managed Security Services make sure to solve them – making GoSecure your ally to consolidate, evolve & thrive. Our service offering includes: • GoSecure Titan® Managed Extended Detection & Response (MXDR) which offers the best-in-class 15-minute response time from threat detection to mitigate with a solution that identifies, blocks, & reports potential breaches. • GoSecure Titan® Vulnerability Management as a Service (VMaaS) helps defend against the constantly changing threat landscape by continuously identifying critical assets, threats and vulnerabilities and working quickly to remediating threats as they arise allowing businesses to get more value from their security and IT operations. • GoSecure Titan® Managed Security Information and Event Monitoring (SIEM) offers advanced security intelligence, comprehensive incident handling, simplified compliance, scalability, threat intelligence integration, and optimized security operations. • GoSecure Titan® Managed Perimeter Defense (MPD) helps organizations address the challenge of monitoring and managing their firewall infrastructure. Whether a single firewall, or hundreds, GoSecure has the skills and resources to manage any size environment. Operating 24x7x365, the GoSecure Security Operations Center (SOC) provides global coverage to keep your firewalls operating at peak efficiency. • GoSecure Titan® Inbox Detection & Response (IDR) gives every user the ability to test any suspicious email. They can finally stop worrying about missing threats, wasting time wondering what to do, or worrying about “crying wolf” too often. With a simple click, employees now become a united force against phishing. GoSecure Titan® IDR is the perfect solution to remediate the phishing problem. Enhance your organization’s cyber defense capabilities GoSecure Titan® Managed Security Services provides industry-leading response and mitigation speeds, essential in today’s rapidly evolving threat landscape. Our services are designed to keep your business safe and secure, ensuring peace of mind in the face of growing cyber threats.

**Average Rating:** 3.0/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate GoSecure Titan Managed Security Platform?

- **Ease of Use:** 3.3/10 (Category avg: 9.0/10)

#### Who Is the Company Behind GoSecure Titan Managed Security Platform?

- **Seller:** [GoSecure Inc.](https://www.g2.com/sellers/gosecure-inc)
- **Company Website:** gosecure.net
- **Year Founded:** 2002
- **HQ Location:** La Jolla, US
- **Twitter:** @GoSecure\_Inc  
2,742 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=a62512f6987b26489553ad53bd8abab93478ced03d2e6cb41b70dbf8b516e868&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fgosecure&secure%5Burl_type%5D=linkedin_company_website)  
161 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Medium

### [IBM Lotus Protector](https://www.g2.com/products/ibm-lotus-protector/reviews)

IBM Lotus Protector for Mail Security scans email messages and attached files for unwanted, confidential or malicious content, extending email security and compliance for social business platform.

**Average Rating:** 4.5/5.0

**Total Reviews:** 1

#### Who Is the Company Behind IBM Lotus Protector?

- **Seller:** [IBM](https://www.g2.com/sellers/ibm)
- **Year Founded:** 1911
- **HQ Location:** Armonk, New York, United States
- **Twitter:** @IBMSecurity  
74,660 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=14b544adaece4fdbc987f1d7f7028048c22259946811200cc751263825586af9&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1009%2F&secure%5Burl_type%5D=linkedin_company_website)  
328,202 employees on LinkedIn®
- **Ownership:** SWX:IBM

#### Who Uses This Product?

- **Company Size:** 100% Medium

#### What Are Recent G2 Reviews of IBM Lotus Protector?

**["Peace of mind at a reasonable price"](https://www.g2.com/survey_responses/ibm-lotus-protector-review-864368)**

**Rating:** 4.5/5.0 stars

_— John W._

[Read full review](https://www.g2.com/survey_responses/ibm-lotus-protector-review-864368)

#### What Are G2 Users Discussing About IBM Lotus Protector?

- [What is IBM Lotus Protector used for?](https://www.g2.com/discussions/what-is-ibm-lotus-protector-used-for)

### [Mailguard](https://www.g2.com/products/mailguard/reviews)

MailGuard offers businesses solutions to manage and protect email and web filtering with anti-spam, anti-virus & data security essentials.

**Average Rating:** 4.5/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate Mailguard?

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.2/10)
- **Quality of Support:** 8.3/10 (Category avg: 9.0/10)
- **Ease of Admin:** 8.3/10 (Category avg: 8.9/10)
- **Ease of Use:** 8.3/10 (Category avg: 9.0/10)

#### Who Is the Company Behind Mailguard?

- **Seller:** [Mailguard](https://www.g2.com/sellers/mailguard)
- **Year Founded:** 2001
- **HQ Location:** Melbourne, AU
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=c7dfcce334832fa9d0e934c003adcbea8bbed9151e89b298eb492d69c1b35049&secure%5Burl%5D=http%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fmailguard-pty-ltd&secure%5Burl_type%5D=linkedin_company_website)  
24 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are Recent G2 Reviews of Mailguard?

**["Guard of the emails, the 'Mailguard'"](https://www.g2.com/survey_responses/mailguard-review-6955313)**

**Rating:** 4.5/5.0 stars

_— Sachin V._

[Read full review](https://www.g2.com/survey_responses/mailguard-review-6955313)

### [Mail Protection Service](https://www.g2.com/products/mail-protection-service/reviews)

The Email Security Service is an Email Security system deployed in the cloud or on-prem, suited for advanced businesses and for Telcos or Hosted Service Providers which can manage a multi-tenant system of Email Security, with network, control and security abilities, together with the adequate operation functions, such as helpdesk visibility, message analytics, and quota and user management.

**Average Rating:** 5.0/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate Mail Protection Service?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 9.2/10)
- **Quality of Support:** 10.0/10 (Category avg: 9.0/10)
- **Ease of Admin:** 10.0/10 (Category avg: 8.9/10)
- **Ease of Use:** 10.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind Mail Protection Service?

- **Seller:** [AnubisNetworks](https://www.g2.com/sellers/anubisnetworks)
- **Year Founded:** 2006
- **HQ Location:** Lisbon, PT
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=54010b6fa2d27be6800edd3785e0ee62cb5e335d6a2d85acc9cfc8053fe451e4&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fanubisnetworks&secure%5Burl_type%5D=linkedin_company_website)  
30 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Large

#### What Are Recent G2 Reviews of Mail Protection Service?

**["Good Antispam Solution"](https://www.g2.com/survey_responses/mail-protection-service-review-6481235)**

**Rating:** 5.0/5.0 stars

_— Amilcar G._

[Read full review](https://www.g2.com/survey_responses/mail-protection-service-review-6481235)

#### What Are G2 Users Discussing About Mail Protection Service?

- [What is Mail Protection Service used for?](https://www.g2.com/discussions/what-is-mail-protection-service-used-for)

### [MX Layer Email Security](https://www.g2.com/products/mx-layer-email-security/reviews)

MX Layer is a leading enterprise security company based in the United States. Our focus is on providing cutting-edge cloud-based solutions for email security, business continuity, data loss prevention and email archiving services. At MX Layer, we ensure that our comprehensive email security platform protects your company's critical communications at all times. Our user-friendly web-based interface makes it easy to control inbound and outbound email traffic, protecting your employees and customers from ever-evolving threats such as spam, phishing, and malware. MX Layer offers best-in-class defense against phishing, impersonation, and many other threats, making it the ultimate email security solution for businesses of all sizes. - Email Security - Inbound Email Filtering - Outbound Email Filtering - Email Threat Protection - Anti-spam and Malware Protection - Email Gateway Protection

**Average Rating:** 5.0/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate MX Layer Email Security?

- **Has the product been a good partner in doing business?:** 8.3/10 (Category avg: 9.2/10)
- **Quality of Support:** 10.0/10 (Category avg: 9.0/10)
- **Ease of Admin:** 6.7/10 (Category avg: 8.9/10)
- **Ease of Use:** 10.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind MX Layer Email Security?

- **Seller:** [MX Layer](https://www.g2.com/sellers/mx-layer)
- **Year Founded:** 2015
- **HQ Location:** Las Vegas, US
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b110b35fb10328f3f6607b19d19d34dd99e14ee72082ea22367f8cc2ad11e5b9&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fmxlayer%2F&secure%5Burl_type%5D=linkedin_company_website)  
4 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Medium

#### What Are Recent G2 Reviews of MX Layer Email Security?

**["Great product that just works as expected"](https://www.g2.com/survey_responses/mx-layer-email-security-review-7994986)**

**Rating:** 5.0/5.0 stars

_— Verified User in Telecommunications_

[Read full review](https://www.g2.com/survey_responses/mx-layer-email-security-review-7994986)

### [Outbound Spam Guard (OSG)](https://www.g2.com/products/outbound-spam-guard-osg/reviews)

The Outbound Spam Guard (OSG) is a carrier-grade solution that can be easily deployed to scan and block up to 99% of all unwanted or malicious outbound email traffic.

**Average Rating:** 5.0/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate Outbound Spam Guard (OSG)?

- **Quality of Support:** 10.0/10 (Category avg: 9.0/10)
- **Ease of Use:** 10.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind Outbound Spam Guard (OSG)?

- **Seller:** [CYBONET](https://www.g2.com/sellers/cybonet)
- **Year Founded:** 2002
- **HQ Location:** Haifa, IL
- **Twitter:** @Cybonet1  
78 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=2f41a8c979f130bfe653ff6ee474d3037263b13ac78dd1ac32142ece79c30104&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fpineapp%2F&secure%5Burl_type%5D=linkedin_company_website)  
28 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are Recent G2 Reviews of Outbound Spam Guard (OSG)?

**["Stopped A Massive Spam Attack"](https://www.g2.com/survey_responses/outbound-spam-guard-osg-review-1708753)**

**Rating:** 5.0/5.0 stars

_— Brian M._

[Read full review](https://www.g2.com/survey_responses/outbound-spam-guard-osg-review-1708753)

#### What Are G2 Users Discussing About Outbound Spam Guard (OSG)?

- [What is Outbound Spam Guard (OSG) used for?](https://www.g2.com/discussions/outbound-spam-guard-osg-what-is-outbound-spam-guard-osg-used-for)
- [What is Outbound Spam Guard (OSG) used for?](https://www.g2.com/discussions/what-is-outbound-spam-guard-osg-used-for)

### [SMX](https://www.g2.com/products/smx/reviews)

SMX is a cloud-based email security and hosting provider having configurable content management and data loss prevention features, secure cloud email archive and more.

**Average Rating:** 5.0/5.0

**Total Reviews:** 1

#### Who Is the Company Behind SMX?

- **Seller:** [SMX](https://www.g2.com/sellers/smx)
- **Year Founded:** 2004
- **HQ Location:** Takapuna, NZ
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=cf794d8c69950f8e11233a209f5a321ab020d57c0f438bfe46a7e288e7963bb5&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fsmx%2F&secure%5Burl_type%5D=linkedin_company_website)  
25 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Medium

#### What Are Recent G2 Reviews of SMX?

**["Recommended Email Filtering Solution"](https://www.g2.com/survey_responses/smx-review-4584202)**

**Rating:** 5.0/5.0 stars

_— Jordan C._

[Read full review](https://www.g2.com/survey_responses/smx-review-4584202)

#### What Are G2 Users Discussing About SMX?

- [What is SMX used for?](https://www.g2.com/discussions/what-is-smx-used-for)

### [SPAMfighter Exchange Module](https://www.g2.com/products/spamfighter-exchange-module/reviews)

SPAMfighter Exchange Module is a spam filter for your Microsoft Exchange or Small Business server. The award winning spam engine will relieve you of the annoying spam that’s flooding both your own inbox and those of your users. Filtering the spam at the source makes the SPAMfighter Exchange Module ideal for companies and organizations with a flexible work force, where e-mail on the smartphone is priceless. The SPAMfighter Exchange Module is tailor made to integrate seamlessly with the Microsoft servers. The result is that it takes just a few minutes to install and that it will start filtering spam right away. In the continuous development of the solution we have added special features, you can activate and configure if you want, e.g. - filtering outgoing and internal e-mails - adding customized disclaimers to all outgoing e-mails - intelligent re-routing Features: Community based spam engine ensures constant updates The award winning SPAMfighter spam engine is based on the experiences of the community. That means that SPAMfighter will constantly evolve and answer to the newest threats from the spammers, without having to wait for the developers. The heuristic approach to spam filtering also means that SPAMfighter will not filter your valuable business e-mails based on simple words. It’s a more complex world than that! Low rate of false-positives We at SPAMfighter pride ourselves of an unusually low rate of false-positives, i.e. share of genuine e-mails left in the spam folder. When you chose to install a spam filter and let someone else interfere with your e-mails, you do so to save time and trouble – not to miss out on business opportunities. We don’t delete any of your e-mails, so at any point in time you can access the spam folder to see if we disagree on the value of an e-mail. Free 30-day trial of the full version We have nothing to hide! That’s why we are giving you a chance to test the full version of the SPAMfighter Exchange Module with no limits for a period of 30 days. Just download the software from our web site and install it on your server to automatically initiate the free trial period. That way you can see for yourself whether SPAMfighter Exchange Module lives up to your expectations or not.

**Average Rating:** 4.5/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate SPAMfighter Exchange Module?

- **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 9.2/10)
- **Quality of Support:** 10.0/10 (Category avg: 9.0/10)
- **Ease of Admin:** 10.0/10 (Category avg: 8.9/10)
- **Ease of Use:** 10.0/10 (Category avg: 9.0/10)

#### Who Is the Company Behind SPAMfighter Exchange Module?

- **Seller:** [SPAMfighter](https://www.g2.com/sellers/spamfighter)
- **Year Founded:** 2003
- **HQ Location:** Copenhagen, DK
- **Twitter:** @spamfighter  
4,356 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=90e99a859bb1ce4171c5a8195484647ee531cd80e9c322d04ed490202f53e2a7&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fspamfighter&secure%5Burl_type%5D=linkedin_company_website)  
17 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Large

#### What Are Recent G2 Reviews of SPAMfighter Exchange Module?

**["A Great Plug and Play Spam Tool"](https://www.g2.com/survey_responses/spamfighter-exchange-module-review-8908584)**

**Rating:** 4.5/5.0 stars

_— Geoffrey K._

[Read full review](https://www.g2.com/survey_responses/spamfighter-exchange-module-review-8908584)

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Similar Categories

- [Secure Email Gateway](/categories/secure-email-gateway)
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 ![Lauren Worth](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Lauren Worth")
LW

Researched and written by [Lauren Worth](https://research.g2.com/insights/author/lauren-worth)

Updated October 3, 2024

Email anti-spam technology is used to prevent malicious content from being delivered via email. These tools scan email messages, content, and attachments for potential threats and then filter or block suspicious messages from being delivered. Administrators can whitelist approved content or senders while also blacklisting or blocking communications from suspicious parties.

Companies use email anti-spam tools to prevent their employees from being misled through phishing attacks or compromising local networks when downloading malware. They also prevent employees from delivering information to misidentified users, saving the business from potential breaches.

All [secure email gateway software](https://www.g2.com/categories/secure-email-gateway) possesses anti-spam or email filtering capabilities, but those tools also have additional features for comprehensive spam filtering, email encryption, and information archiving.

To qualify for inclusion in the Email Anti-Spam category, a product must:

- Filter email content for malware or viruses
- Identify mislabeled senders or potential phishing attempts
- Provide blacklisting or blocking capabilities to restrict communication with suspicious parties

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