Symantec Messaging Gateway Alternatives (September 2025)

Fortinet's Email Security Solutions provides protection for your critical business information. Learn how to send Secure Email Gateways (SEG) with FortiMail.

Secure your business with total messaging control. Cybonet stops the majority of malicious email threats at your network's perimeter while simultaneously providing a range of additional options for comprehensive security and messaging control.

Email security is critical for all organizations. Block all email attacks using Mimecast's advanced email security product with targeted threat protection.

The most comprehensive protection against traditional and targeted attacks. Blocks spam, phishing, and advanced persistent threats (APTs). Flexible hybrid SaaS deployment option.

The award-winning Clearswift Secure Email Gateway offers an unprecedented level of email security, including cyberattack protection and data loss prevention.

Email Security, Archiving, Encryption, & Awareness Training. Compatible with Office 365. Virus, Phishing, Ransomware & Malware Protection.

Email security and spam filtering with SpamTitan from TitanHQ uses double AV and AI driven malicious URL detection to block malicious threats

Barracuda Essentials for email security provides IT service providers with complete email security, archiving, e-discovery and backup solution.

Over 90% of targeted ransomware attacks start with a spear phishing attack. But with a single appliance, you can detect and block targeted attacks.

Secure your business with total messaging control. Cybonet stops the majority of malicious email threats at your network's perimeter while simultaneously providing a range of additional options for comprehensive security and messaging control.

N-able Mail Assure offers MSPs AI-driven email security with close to 100% filtering accuracy. Mail Assure also provides continuous uptime and email archiving.

High performance on-premises appliances that protect organizations across the web, social media, applications and mobile networks.

Intelligent Email Security protects against data breaches by engaging and empowering users without introducing friction.

The Barracuda Email Security Gateway is an email security gateway that manages and filters all inbound and outbound email traffic to protect organizations from email-borne threats and data leaks. As a complete email management solution, the Barracuda Email Security Gateway lets organizations encrypt messages and leverage the cloud to spool email if mail servers become unavailable.The Barracuda Email Security Gateway is also available as a virtual appliance or in a public cloud environment (Amazon Web Services, or Microsoft Azure). For…

Boost your email security with Proofpoint Essentials and OnDMARC; protect your business against phishing, ransomware, and fraud.

VIPRE provides email security solutions for every size organization and the IT partners that serve them.

Spambrella is your company for managed email security services and User Awareness Training solutions and products. Try our security services for email today!

An essential suite of email and web security services for SMB and Enterprise.

MX Layer provides cutting-edge cloud-based solutions for email security, business continuity, data loss prevention, and email archiving services.

Safeguard your network’s most vulnerable system with anti-virus and anti-spam technologies that block malicious software and spam at the gateway.

Protect your business e-mail from cyberattacks: phishing, ransomware, spam, viruses. Installation in just a few clicks. French solution 🇫🇷

INKY helps companies secure email using a cloud-based security platform that proactively and instantly scans inbound, internal, and outbound emails to eliminate phishing and malware. The platform intelligently eliminates security threats by blocking malicious emails while assisting employees in real time to handle suspicious emails.

Exceptional Email Security, Email Archiving and Phishing Awareness. Libraesva stops Zero-Day Email Attacks, integrating with M365 and Google

Protect your enterprise with best in breed email security from Sendio. Eliminate ransomware, phishing attacks, spam and malware using behavioral technology.

SMX offers a cloud-based email security solution for SEG, archiving and added Microsoft 365 defence. Trusted by enterprises, governments and ISPs across ANZ.

Protect your customers with artificial intelligence with real-time spear phishing protection and cyber fraud defense to prevent personalized attacks.

Cloud Email Protection, the integrated cloud email security solution from Fortra, stops advanced threats that bypass security defenses and make it into inboxes.

Prevent malware, ransomware and other threats from compromising your email and your business with Secure Cloud.

Trend ScanMail™ for Domino provides comprehensive mail server security with real-time protection and streamlined administration that blocks emails with links to malicious sites.

MailGuard is a leading Australian technological innovator, providing complete enterprise-grade protection against email security threats such as phishing, ransomware, and BEC. First to stop fast breaking attacks, MailGuard detects and prevents email threats 2-48 hours ahead of the market.

Phishing protection including spam filtering, outbound SMTP with DKIM, backup MX services, and Advanced Threat Protection. With 24x7 support included.

Award-winning cloud-based email security platform prevents phishing, malware, spoofing, and BEC, from reaching a user’s mailbox. See the Trustifi Difference.

As email is the preferred medium for business communications, preventing confidential information from being leaked in outbound email messages must be a top priority in order to lower the risk of a...

Protect your organization from today’s advanced email threats, business email compromise (BEC), and consumer phishing with Proofpoint's Email Fraud Defense.

Enhance VIPRE Email Security Cloud with unparalleled protection against malicious links and infected attachments.

Data Center Security – Complete server protection, monitoring, and workload micro-segmentation for private cloud and physical on-premises data center environments.

With Darktrace's self-learning cyber security AI, you're protected against future email attacks that aren’t limited to past attack rules & data. Get a demo.

Detect and block both malicious and malware-less email threats with Proofpoint Email Protection.

Stop advanced email threats and optimize security operations with AI-powered email security that adapts to your organization. Available for on-premise and Microsoft 365.

Cloudmark is a trusted leader in intelligent threat protection against known and future attacks, safeguarding 12 percent of the world’s inboxes from wide-scale and targeted email threats.

Powerful, effective protection against spam and malware

GreatHorn is an API, cloud-native email security solution that mitigates the risk of business email compromise across Microsoft 365 and Google Workspace.

N-able SpamExperts offers professional anti-spam email filtering and archiving for Web hosting providers, Internet Service Providers and Telcos.

#1 Open Source Free Anti Spam and Antivirus software. MailCleaner is a gateway between your mail infrastructure and Internet. Block all spam.

Real-time link click protection defends against malicious links in emails every time, on every device, from anywhere.

Guardian Digital has developed unparalleled AI-powered business cloud email security services. Secure your business emails and stay threat-ready today.

To meet today's Cyber Security challenges, enterprises need an integrated cyber defense platform that integrates industry-leading solutions and solves for the most pressing C-level challenges like evolving threats, privacy & compliance, and digital transformation.

Mimecast brand protection services combine machine learning and targeted scans to identify potential attacks reduce compromise. Learn more.

SonicWall Cloud App Security offers next-gen security for your users and data within cloud applications, including email, messaging, file sharing and file storage. For organizations adopting SaaS applications, SonicWall Cloud App Security delivers best-in-class security and a seamless user experience.

Skyhigh Secure Web Gateway (SWG) the complete solution protecting both users & data. Integrated RBI, CASB, industry leading DLP 99.999% uptime.

Kaspersky Security for Microsoft Office 365 protects your cloud-oriented enterprise from email-borne threats. Learn how it uses advanced next generation techniques to stop phishing, ransomware, malicious attachments, spam and business email compromise (BEC).

Cisco Secure Email Encryption Service gives senders enhanced security and reliable controls for traditional email tools.

Secure your business emails. Train your employees to cyber attacks. Protect your emails with Mailinblack.

The most integrated endpoint security platform on the planet delivers cloud-based protection with AI-guided security management, all on a single agent/console architecture.

Spambarrier ist ein Dienst, der Ihre E-Mails filtert, bevor sie Ihren Mailserver erreichen. Der einfache Weg, sich vor Spam zu schützen Hosting sicher in Deutschland und datenschutzkonform.

Advanced email protection to prevent credential phishing, business email compromise, account takeover, and more.

Email Encryption is an essential part of Secure Cloud. With Zix, we send encrypted email automagically in the background. No extra steps are required, ever.

IM Security for MS Skype provides advanced threat and data protection for business servers, using built-in DLP and allowing you to take immediate control of data.

EmailSuccess is a reliable, fast and secure Mail Transfer Agent capable of delivering huge volumes of emails to the biggest email service providers.

Mesh is the world's first email security platform built exclusively for MSPs, enhancing their efficiency and ensuring greater safety for their customers. Offering flexible deployment options - Mesh Gateway (MX based), Mesh 365 (API based), and Mesh Unified (MX and API based) - Mesh protects organiza

Get advanced threat protection with Microsoft Defender for Office 365 and protect against cyber threats like business email compromise and phishing.

Discover how Proofpoint Digital Protection helps protect social media accounts against account hacks, attacks, malicious content and other risks.

Industry-leading cloud-native Security Service Edge (SSE) solution enables your workforce and protects your data across web, cloud, email, & private apps.

MagicMail is the top selling, carrier-grade email server built for ISPs, Telcos, and Cable companies to manage your back-end services for email.

Take back control of your email reputation with award-winning, cloud-based DMARC, DKIM and SPF configuration and management.

IRONSCALES’ cloud email security software is an AI-powered email platform for enterprise organizations. Our self-learning service protects against advanced email attacks that bypass traditional defenses.

Material is a multi-layered detection and response toolkit for email. It stops sophisticated email-based attacks and contains the blast radius of compromised accounts.

The MDaemon Email Server is trusted by businesses in over 140 countries to provide a secure, reliable, and affordable alternative to Microsoft Exchange or Microsoft 365. IT professionals recommend MDaemon as an easy-to-use, reliable, and secure mail server that does not require expensive administration or impose high per-user costs. On-premise or hosted email deployment.

A powerful email server that blocks 99% of junk emails. It also enables encrypted emailing with large sized file sharing and helps in preventing IP leakages

Forcepoint Data Loss Prevention (DLP) is an enterprise solution that prevents data exfiltration across all channels, including cloud, email and endpoint. Learn more here.

Protect your business network from viruses and threats, secure your work email and Windows file server with AVG business antivirus endpoint security. Download a Free Trial or Buy Online.

Secure Internet Gateway (SIG) provides next generation, cloud-based firewall protection for businesses, MSPs, and MSSPs.

Mailprotector has the complete email security products your users need to cover all three comprehensive pillars: email security, encryption, and privacy.

Full suite for Microsoft 365 security, Risk, Governance, Compliance & Backup

Advanced threat and data protection for Microsoft Office 365, Google Workspace, and other cloud app security services.

Achieve and maintain DMARC enforcement 4x faster than any other platform with Valimail’s best-in-class email authentication solutions.

The Barracuda Web Security Gateway lets organizations benefit from online applications and tools without exposure to web-borne malware and viruses, lost user productivity, and misused bandwidth. As a comprehensive solution for web security and management, it unites award-winning spyware, malware, and virus protection with a powerful policy and reporting engine. Advanced features ensure that organizations adapt to emerging requirements like social-network regulation, remote filtering, and visibility into SSL-encrypted traffic.Unlimited remote user licenses are included to enforce content and access policies…

Encrypt ANY Business or Personal Email in a few minutes. No need to switch email providers. Free encrypted email for Gmail, Yahoo, Microsoft.

Proofpoint Targeted Attack Protection (TAP) provides an innovative approach to detect, analyze and block advanced threats targeting your people. It also offers unique visibility into these threats...

We’re powering the next generation of secure email communications for your organization, preventing data leaks & empowering people to work securely.

Secure email encryption helps protect individuals, SMBs, and Enterprise organizations. Learn more about compliance & secure email encryption.

Secure your collaborations with a dedicated layer of protection against malware, malicious links, and other threats that SharePoint administrators are often unaware of.

Discover Echoworx, the industry-leading provider of cutting-edge email encryption to safeguard your sensitive communications

Secure your communications with DataMotion's email encryption and document exchange. Seamlessly integrate with the apps you're most familiar with.

DNS filtering and DNS web filtering solution providing AI driven threat protection and advanced web content controls for MSPs.

SaaS Defense is an advanced threat protection [ATP] and spam filtering solution that detects zero-day threats.

Security in the industry for mobile operators, internet service providers, and hosting providers Cloudmark Authority utilizes a unique combination of proprietary…

Prevent sensitive emails from being sent to the wrong person. Confirm external recipients and attachments with this convenient Outlook add-in.

Kaspersky Security for Internet Gateway offers reliable protection against web-based cyberthreats. It also helps to reduce risk and increase productivity through internet access management.

Proofpoint Enterprise Archive™ is a cloud-based archiving solution that simplifies three key information management challenges—legal discovery, regulatory compliance and end user information access...

Exchange business-class email helps increase user productivity while protecting your data. Get it as a hosted service or run it on your servers.

Learn how Proofpoint solutions eliminate compliance risks as organizations engage customers on digital channels, desktop, mobile, and social media.

SenditCertified offers a HIPAA-compliant encrypted, cloud-based service with secure email, document e-signature, and document storage.

Secure Mails, 500Mail by 500apps, get safe, encrypted, ad-free emails, and never worry about transmitting personal information again.

Lookout is the cybersecurity platform built to stop modern breaches as swiftly as they unfold, from the first phishing text to the final data grab.

Junk Email Filter - Front End Spam / Virus Filtering for your Existing Email Server. We filter the spam and viruses and pass the good email on to you., Junk Email Filter is a front end hosted spam filtering and virus blocking service. Worlds most advanced spam fighting tools.

Secure E-Mail Boolebox: to send and receive encrypted messages and attachments using the advanced security features of Boolebox. Learn more!

Securely archive, search, and analyze your company's email on one platform, preserving vital data while gaining instant business insights.

Complete protection against phishing, malware or spam, adding an extra layer of cyber defense for your Microsoft 365, Google Workspace cloud apps and email.