Guardian Digital EnGarde Cloud Email Security Alternatives (September 2025)

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

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

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.

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

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

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.

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.

AI-Powered, Human-Driven Security for Users Across Email, Browsers and SaaS Applications.

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

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.

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.

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

Graphus is automated email security software, providing security for Google Workspace & Microsoft 365 users against phishing & social engineering attacks.

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

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

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

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

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

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.

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.

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

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

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

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

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.

Discover the platform that secures and insures small businesses using AI and a multilayered approach.

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.

How it works: Avanan adds an invisible layer of full-suite security for cloud email/collaboration, like Office 365, to create universal threat management.

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

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

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

SafeGuard Cyber provides security and compliance for your business communications. Stop risks with Unified Visibility, Contextual AI, and personal privacy.

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.

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

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

Your smart DMARC reporting and monitoring platform. Ensure domain-level security and email deliverability with EasyDMARC’s DMARC, SPF, DKIM, and BIMI services.

Powerful, effective protection against spam and malware

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

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.

Symantec Messaging Gateway protects email against spam, malware, targeted attacks and provides advanced content filtering, data loss prevention, and email encryption.

Virtru data encryption protects data, through email and file-sharing, Cloud, SaaS, CRM solutions and across internal and external ecosystems.

PhishLabs provides Digital Risk Protection through curated threat intelligence and complete mitigation for web, social, and email threats.

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

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

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

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

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

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

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

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

DMARC is the leading email authentication protocol. Understand how DMARC authentication blocks spoofed emails and phishing attempts & keeping your inbox safe.

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.

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

Today’s most successful businesses are digitizing virtually every aspect of their operation. That sensitive data needs to be protected by organizations. Fortra's Digital Guardian gives you immediate visibility into your organization’s assets, delivering enterprise-wide data protection to safeguard your sensitive data and IP, wherever it lives.

Cost-effective, secure hosted email: mailboxes, calendar and address book

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.

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

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

Cloud based DNS filtering solution. Powered by artificial intelligence, we help businesses and families stay protected with our web and content filtering.

MailChannels ensures your customers' emails are always delivered. Trusted by the fastest-growing hosting providers.

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

Watch the Solution Overview - Mailbox Continuity video.

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

Microsoft Exchange Email from Intermedia offers enterprise email services backed by 24/7 support and a 99.999% uptime.

Make malicious DNS activities visible with AI-powered analysis. Get to know the advanced features of DNSSense closely and protect your organisation from the threats of the cyber world!

REVE Antivirus protects users from online threats. Apart from best virus protection, it provides email security and safety from phishing scams.

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

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).

Egnyte's AI-powered platform unlocks organizations cloud content's full potential. 22,000+ businesses trust Egnyte to manage, secure, and govern their content.

Protect your business data with Dropsuite's secure cloud backup and archiving solutions for Microsoft 365, Google Workspace, Quickbooks Online, website, and email.

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

Discover Proofpoint Essentials, enterprise-class SMB cybersecurity. Learn why Proofpoint is the leader in medium and small business cybersecurity solutions.

Digital Guardian Secure Collaboration (formerly Vera) enables zero-trust security for sensitive data, enabling organizations to protect any file, anywhere.

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

Fast, secure, and sustainable email services provided by email professionals. Powerful Email and Domain Hosting for businesses and organizations.

BrandMail, developed by BrandQuantum, is a software solution that seamlessly integrates with Microsoft Outlook to empower every employee in the organisation to automatically create consistently branded emails via a single toolbar that provides access to brand standards and the latest pre-approved content. BrandMail Lite and BrandMail Web offer email signatures for Mac and mobile via O365 and Google Workspace.

From endpoints and networks to emails, identities, and beyond, Heimdal has you covered with advanced detection and response capabilities.

Find out how Proofpoint Threat Response solutions enables security teams to respond to threats that are targeting people in their organization.

Intelligent data protection, purpose-built for the Cloud applications. Afi microservices-based architecture enables unrivaled speed and scalability, while the AI engine ensures high degree of autonomy and resistance to errors

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

Cloud-based cybersecurity for every part of your company. We protect email, data, cloud apps, devices, and even users. Try Coro today!

Discover Proofpoint Security Awareness Training. Empower your employees with a human risk management program that drives behavior change and builds sustainable security habits.

Protect your business from viruses with AVG Internet Security Business Edition. Includes email and server security, business antivirus, and firewall.

OX Cloud Email - Easy, Fast, Secure - Powerful email built for business

Save on infrastructure and maintenance costs. Choose your data centre (US, EU, APAC). AWS native cloud email hosting.

Network security AI built for SMB, enterprise, government, and critical infrastructure. Integrates into your workflow including SIEMs, SOARs, & access via SSO.

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...

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

Amazon WorkMail provides secure, managed business email and calendaring with support for existing desktop and mobile email client applications.

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...

Host your professional email on a secure, privacy-guaranteed, and ad-free email hosting service built-in with features like email marketing services can do.

The world’s most formidable cybersecurity based on superior research that’s easy to use. A unique balance of prevention, detection and response.

Enhance cyber resilience, security operations, and cost efficiency with an all-in-one SaaS security platform that protects your SaaS data from loss, ransomware, risky apps, misconfigurations, and non-compliance

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...

Safeguard your data from any threat with the only cyber protection solution that natively integrates data protection and cybersecurity.

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

Make learning accessible & secure from any web browser. Request a demo today.