Best Email Security Software for Google Workspace

Guardz

Guardz is the unified cybersecurity platform purpose-built for MSPs. We consolidate the essential security controls, including identities, endpoints, email, awareness, and more, into one AI-native framework designed for operational efficiency. Our identity-centric approach connects the dots across vectors, reducing the gaps that siloed tools leave behind so MSPs can see, understand, and act on user risk in real time. Backed by an elite research and threat hunting team, Guardz strengthens detection across environments, turning signals into actionable insights. With 24/7 AI + human-led MDR, Guardz utilizes agentic AI to triage at machine speed while expert analysts validate, mitigate, and guide response, giving MSPs scalable protection without adding headcount. Our mission is simple: give MSPs the scale, confidence, and clarity they need to stay ahead of attackers and deliver protection to every SMB they serve.

95 Ratings

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N-able Mail Assure

N-able

N-able Mail Assure cloud-based email security solution provides advanced threat protection for inbound and outbound email using collective threat intelligence, 24/7 email continuity, and long-term email archiving. The service includes a multitenant web-interface with predefined settings, reporting, and views designed to ensure control and visibility over email flows. N-able Mail Assure’s proprietary technology incorporates input from processing large volumes of email data that feeds the Intelligent Protection and Filtering Engine. This combined with real-time pattern threat recognition leveraging a variety of filtering technologies help protect against spam, viruses, phishing attacks, impersonation, spoofing, malware, and other email-borne threats.

13 Ratings

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MailRoute

Stop Ransomware, spam and phishing, other viruses and threats for SMB, Enterprise, Healthcare, and Government agencies and contractors. API-level integration for Microsoft Office 365 & GCC High, Google Workplace, other email hosts and all servers. MailRoute stops email-instigated attacks on your information and hardware, with cost-effective, multi-layered protection. We offer CMMC, NIST 800-171, HIPAA, DFARS compliant and DISA accepted email security services. No single point of failure. Wholly owned solution includes geo-distributed datacenters with redundant network feeds, power sources and cooling, for 99.999% uptime. MailRoute prevents forgeries and email spoofing by identifying malicious messages with email authentication tools through assisted and managed DNS changes. Continually managed and updated email-network security stops cybercrime and threats like downtime, ensuring cost-predictability and reliability.

1 Rating

Starting Price: $2 per user per month

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Symantec Email Security.cloud

Broadcom

Safeguard Microsoft Office 365, Google G Suite, and on-premises email with the industry’s most complete email security solution. Insulate users from spear phishing, credential theft and ransomware attacks by using Email Threat Isolation. Prevent insidious email threats such as spear phishing, ransomware, business email compromise and email spam. Stop spear phishing emails with multiple layers of protection, threat isolation, spam filtering, advanced security email analytics, built-in user awareness, education tools, and more. Block the latest ransomware with content defense, sandboxing, and link protection technologies that detect emerging, stealthy, and zero-day attacks. Defeat business email compromise with impersonation protection, sender authentication enforcement and brand protection controls. Protect your brand reputation by using automation to solve the practical issues of enforcing sender authentication (DMARC, DKIM and SPF) with Symantec Email Fraud Protection.

1 Rating

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Kerio Connect

Aurea

Secure, enterprise-style email, calendar & collaboration without the high cost. Kerio Connect delivers all the features and functionality for collaboration and messaging solution without the complexity and high price tag of other systems. Email is integrated with shared calendars and scheduling, contacts management, tasks, notes, shared and public folders, and instant messaging. Synchronize messages by direct push to your choice of mobile device via Microsoft ActiveSync. Instant Messaging is XMPP-compatible and can be used from various 3rd party chat/IM applications on desktop and mobile phones. You can install Kerio Connect in 10 minutes and users can be up and running in just 10 minutes more. Kerio Connect can be deployed on-premises or in partner-hosted cloud environments. Deploy for users on Mac, Windows, or Linux; plus full support for Outlook (Windows and Mac) and many other IMAP or POP compliant email clients.

2 Ratings

Starting Price: $36.50

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Xink

Manage Microsoft 365 or Google Workspace email signatures in one place with Xink's powerful web portal - built on a decade of experience with email signature management. Get consistent, branded and up-to-date signatures for all employees across devices, departments, and geography. Create customized and targeted email signature marketing banners below the contact details to share updates, achievements, values, promote content and much more! All with clickable call-to-actions to help you drive traffic and interest. With role-based login, the marketing or communications department can easily manage it. After the initial setup (45 min), IT has no workload. Safely hosted at ISO 27001-certified data centers (Microsoft Azure). This ensures the best, most secure data storage available – under all laws and regulations, including GDPR.

Starting Price: $1/user/month

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Spambrella

Dynamically classify imposter email. Preemptively identify and sandbox suspicious URLs. Leverage big-data analysis to accurately classify bulk mail. All within a single service that connects with Microsoft 365 and Google Workspace. Spambrella’s Email Security and User Awareness Training technology is used by some of the World’s largest and most successful security-conscious companies in a multitude of continents and environments. Delivered on a global scale, Spambrella is ready to unify your email security and user awareness training requirements. Think of us as your outsourced email security team! We have deep technical expertise of all other service providers such as MxLogic, Mimecast, Symantec.cloud and know how to migrate you effortlessly. Schedule a demo today with our cybersecurity experts to uncover email threats targeting your email users.

Starting Price: $1.00

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Guardian Digital

Guardian Digital secures against email threats like phishing, zero-day exploits and ransomware attacks that define the modern threat landscape email users face every day. We believe email security is business security, as greater than 90% of all cyber attacks originate from an email. The most effective email protection is delivered through a purpose-driven solution designed to close critical security gaps in Microsoft 365 and Workspace, coupled with the expert setup, ongoing remote system management and accessible support required to improve IT security. With real-time cybersecurity business insights, we help you understand what your risk profile is today, and protect you from the dangers that all businesses face. EnGarde Cloud Email Security - Key Features: • Phishing, spoofing & impersonation protection • Link & file analysis • Zero-day attack protection • Malware & Ransomware protection • SPF/DKIM/DMARC checking • Encryption • Comprehensive management & support service

Starting Price: Monthly & Annual Subscriptions

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LuxSci

Lux Scientiae

LuxSci provides HIPAA-compliant web and email communications services. LuxSci creates uniquely secure and customizable enterprise-grade environments and solutions that enable organizations to confidently meet their specific business and security needs at scale. LuxSci’s HIPAA-compliant email and web solutions are HITRUST certified and include: • Secure High Volume Sending for delivering massive volumes of transactional and marketing emails. • Secure SMTP Connector for encrypting outbound emails sent from Microsoft 365 and Google Workspace. • Secure Email Marketing platform for creating and sending marketing campaigns with ePHI. • Secure Email Hosting for reliable and secure day-to-day business email. • Fully managed Secure Web and Database Hosting for web applications that require compliance. • Secure Forms to safely collect and store sensitive information. LuxSci provides a full suite of secure technology for companies requiring compliant web and email services.

Starting Price: $4 per/user/month

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PhishProtection

DuoCircle

Make your smartest investment to reduce email security threats today, and get a comprehensive email security protection solution with small business pricing. Cybercriminals are targeting CEOs, CFOs, HR, Accounting Departments and regular employees across every industry. As you know Office 365 is extremely limited in the protection that you can configure to stop impersonations, email fraud and phishing. There are only so many custom transport rules you can build to constantly block domains or protect against employee impersonations. PhishProtection works on every email server, device or smtp service. No matter if you are on your phone, or outlook or any email client anywhere, we can protect you. It offers best-in-class security to iOS and Android devices alike.

Starting Price: $100/month/user

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Raptor Email Security

Peregrine Computer Consultants Corporation

Raptor Email Security is an MX-based email security solution designed by industry experts to stop spam, phishing, and malware attacks using a unique scoring framework and multiple technologies including SpamAssassin, ClamAV, MIMEDefang, and Sendmail. Let our experts handle the annoying spam for you! No Spam. Zero Tickets. 2X Resources. With your email going through our servers, we handle the brunt of most cyber attacks which keeps your server better protected! With less resource usage, you'll be able to increase your hosting revenue and monetize your server by adding more hosting accounts. Raptor Email Security also comes with Raptor Review which provides a detailed, expert analysis of your email configuration. It's a phishing hotline and white glove service to definitively fix your email problems including blocking spam, improving email deliverability, identifying scams, finding missing email, and unblocking good email. Set up in minutes. Free 30 Day Trial Available!

Starting Price: $15/server/month

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Keepnet Labs

Keepnet’s extended human risk management platform empowers organizations to build a security culture with AI-driven phishing simulations, adaptive training, and automated phishing response, helping you eliminate employee-driven threats, insider risks, and social engineering across your organization and beyond. Keepnet continuously assesses human behaviors through AI-driven phishing simulations across email, SMS, voice, QR codes, MFA, and callback phishing to reduce human-driven cyber risks. Keepnet's adaptive training paths are tailored to individual risk levels, roles, and cognitive behaviors, ensuring that secure behaviors are embedded to continuously reduce human cyber risk. Keepnet empowers employees to report threats instantly. Using AI-driven analysis and automated phishing responses, security admins respond 168x faster. Detects employees who frequently click phishing links, mishandle data, or ignore security policies.

Starting Price: $1

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ESET PROTECT Elite

ESET

ESET PROTECT Elite is an enterprise-grade cybersecurity solution that integrates extended detection and response with comprehensive multilayered protection. It offers advanced threat defense using adaptive scanning, machine learning, cloud sandboxing, and behavioral analysis to prevent zero-day threats and ransomware. The platform includes modern endpoint protection for computers and smartphones, server security for real-time data protection, and mobile threat defense. It also features full disk encryption, helping organizations comply with data protection regulations. ESET PROTECT Elite provides robust email security, including anti-phishing, anti-malware, and anti-spam technologies, along with cloud app protection for Microsoft 365 and Google Workspace. Vulnerability and patch management capabilities allow for automatic tracking and patching of vulnerabilities across all endpoints.

Starting Price: $275 one-time payment

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Avanan

Check Point

Enterprise AI cloud security: prevent phishing, malware, data leakage, account takeover, & shadow IT for full-suite cloud applications like Office 365™. Default security misses far too many malicious emails, necessitating advanced email security to protect the enterprise. Avanan reinvented email security in 2015 because traditional gateways couldn’t, and haven’t, adjusted to the cloud. Avanan’s patented security. Security for all your collaboration apps. Ransomware, account takeover, BEC, supply chain attacks. 99.2% reduction in phishing attacks reaching the inbox. Avanan is powered by True AI, trained on comprehensive data sets to stop the most sophisticated phishing attacks before they reach the inbox. To implement API, machine learning and AI for cloud email security. 5,000+ customers, 60% coming from large enterprise. Ranked Email Security solution in Gartner Peer Insights and G2.

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Material

Material Security is an automated detection and response toolkit for Google Workspace and Microsoft 365, combining email security, data security, identity protection, and configuration management in a single platform. Material streamlines SecOps by unifying detections and automating remediations across your cloud workspace in one platform that gives you unprecedented visibility and control. Material stops sophisticated attacks, secures sensitive data in files and mailboxes, detects and contains account takeovers, and reduces risk across your environment. Your cloud workspace isn’t just another app. It's critical infrastructure - home to your people, content, and communications — and requires dedicated protection.

Starting Price: $3 per user

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Ziroh Mail

Ziroh Labs

Even if you don’t exchange confidential emails, doesn't it bother you that your email service provider has a backdoor to your emails? They can open it to any third party, anytime. They create the rules after all, with the loopholes. Do you know what a single eCommerce receipt can reveal about you? Your taste in clothes, the money in your wallet, your preferred method of payment, where you live, which device you use, and so on. Alarming isn’t it? Well, thousands of companies and scammers already are. Every little detail about you is invaluable to third parties, they will use it to get to know you better, manipulate you to buy their products and services, and sometimes impersonate you online. If you think that your email platform is foolproof, just do a simple search. All major email platforms have been hacked. Still, feel secure? A quick, easy, non-intrusive privacy layer that protects your emails wherever they are, and wherever they reach.

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Vade

Vade Secure

Vade is a global leader in predictive email defense, protecting 1 billion mailboxes in 76 countries. We help MSPs and SMBs protect their Microsoft 365 users from advanced email security threats, including phishing, spear phishing, and malware. ISPs, MSPs, and SMBs choose Vade's email security solutions to protect their users and their businesses from advanced cybersecurity threats, including phishing, spear phishing, and malware. Whether we’re protecting consumers through leading ISPs, or business through our MSP partners, our AI-based email security solutions are designed to detect the undetectable. Block dynamic phishing attacks that bypass traditional solutions. Block targeted spear phishing & business email compromise attacks. Block evasive polymorphic and zero-day malware attacks.

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INKY

INKY Technology

INKY is an award-winning cloud-based email protection software. It blocks spam, malware, and most importantly — it protects businesses from phishing attacks like no other email security solution can. INKY uses domain-specific machine learning and computer vision to identify and block zero-day phishing emails that get through legacy email systems. Warning banners directly in the email offer guidance for suspicious emails. Integrates into Office 365 organization-wide within minutes. Safe/Unusual/Malicious warnings let users know how to treat the email. Our advanced dashboard gives you complete visibility and tracking into the threats being blocked. INKY’s email protection software places user-friendly warnings directly into the email, offering specific guidance to both protect and educate your users. Safe/Unusual/Malicious warnings with details guide the user to take a closer look or proceed cautiously. One of our clients’ favorite features is the ability to Report an Email with a click.

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Darktrace

Darktrace is a cybersecurity platform powered by AI, providing a proactive approach to cyber resilience. Its ActiveAI Security Platform delivers real-time threat detection, autonomous responses to both known and novel threats, and comprehensive visibility into an organization’s security posture. By ingesting enterprise data from native and third-party sources, Darktrace correlates security incidents across business operations and detects previously unseen threats. This complete visibility and automation reduce containment time, eliminate alert fatigue, and significantly enhance the efficiency of security operations.

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Abnormal AI

Abnormal AI offers a behavioral AI platform designed to protect humans from sophisticated email threats like phishing, social engineering, and account takeovers. The platform leverages advanced anomaly detection to identify and stop AI-powered email attacks that operate at machine speed and evade traditional defenses. It delivers fully autonomous threat detection and response with minimal manual intervention. Abnormal AI integrates seamlessly with cloud email platforms, enhancing security without adding operational overhead. Trusted by over 3,000 customers including many Fortune 500 companies, it has demonstrated significant reductions in phishing attacks and SOC workload. Its unique human-focused, behavior-driven approach helps organizations proactively defend against evolving cyber threats.

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Aspida Mail

Aspida

Aspida Mail was developed with simplicity in mind. We know it's important for you to be able to continue with business as usual. Aspida Mail's setup is seamless and works with any IMAP enabled device. Aspida is HIPAA compliant encrypted email.

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Armorblox

Armorblox uses natural language understanding, deep learning, and statistical techniques to protect all enterprise communications from inbound threats and outbound data loss. The Armorblox platform leverages a broad spectrum of data sources, signals, and detection techniques. Stop business email compromise, account takeover, executive impersonation, and other targeted threats. Study detailed attack analysis that’s built for human eyes. Automatically delete, quarantine, or label emails based on preconfigured policies. Detect PII/PCI violations and passwords disclosed through emails. Block outbound emails containing confidential information. Prevent lateral data leaks across email, messaging, and file-sharing solutions. Auto-remediate all reported false positives. Remove similar suspicious emails across user mailboxes with one click. Leverage dynamic policies to stop similar attacks in the future.

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Graphus

Kaseya

90% of cyberattacks that end in a data breach start with a phishing email. Graphus is a cost-effective automated phishing defense solution for companies of all sizes that protects your customers from today’s biggest cyber threats. Using patented AI algorithm to detect and quarantine suspicious emails fast, Graphus is a powerful boost for your clients’ security (and your MRR). Powerful automated phishing protection for Office 365 and G Suite. Graphus’ unique, innovative AI learns and evolves with each company’s communication patterns to provide three layers of protection against malicious attacks and strengthen your clients’ security posture -- giving you and your clients peace of mind. TrustGraph® automatically detects and quarantines dangerous emails that get through email platform security or an existing Secure Email Gateway (SEG). EmployeeShield® adds an interactive warning banner to questionable messages, prompting recipients to quarantine or mark them as safe with one click.

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DuoCircle

Reliable and secure email hosting services for SMB and Enterprise. Safely processing over 100 million emails per month for our customers. Enhanced gateway security and filtering, inbound email security, email service backup and outbound SMTP using a new high quality infrastructure for top quality results that our customers deserve. Products include, Secure email gateway, email backup MX, email forwarding, outbound SMTP and more. DuoCircle protects against phishing attack with Link Click Protection, a part of the Advanced Threat Defense Suite. You’re covered with Link Click Protection even if site content changes between clicks. You get total protection from phishing and your confidential corporate information is secured because your employees are simply prevented from visiting sites that misuse such information. You get instant feedback in the form of an alert when a suspicious link is about to be visited.

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GreatHorn

If your organization has shifted to a cloud-native email platform it’s time to reevaluate your email security to address today’s sophisticated zero-day attacks, and complex social engineering tactics like business email compromise and email account compromise. GreatHorn Cloud Email Security Platform changes the way you manage risk, layering sophisticated detection of polymorphic phishing threats with user engagement and integrated incident response, allowing your organization to address advanced threats at the moment risk enters your environment. No changes to mail routing or MX records, 5 minute deployment, and out-of-the-box default policies give you the immediate protection you require. Using artificial intelligence and machine learning, accurately identify risk areas, threat patterns, and zero-day phishing attacks to reduce response time. Continuous engagement helps train end users at the moment a potential phish enters their inbox.

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Rotate

Use the Rotate cloud security platform to secure any business with modular hubs and seamless integrations designed to scale your security needs. Gain greater context on cyberattacks and improve remediation by identifying alerts across all hubs, correlating them, and prioritizing incidents by risk level. Synthesize, consolidate, and manage all hubs in Rotate’s XDR. Use your multi-tenancy control center for vulnerability scans and rapid deployments. Manage unlimited clients through a single pane of glass. Empower your business customers with a complete cybersecurity solution and reduce portfolio risk. Rotate protects all types of organizations in the new world of digital-first work. Get complete cybersecurity for every employee who uses email or brings a device to work. Cyber insurance is essential for any organization at risk of a cyber attack, but coverage can be expensive. Comprehensive protection like the type provided by Rotate can help reduce the overall cost of insurance.

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Datto SaaS Protection

Datto, a Kaseya company

Reliably and securely backup Microsoft 365 and Google Workspace (formerly G Suite) to ensure critical programs used for business, email and docs are protected from every day downtime events and cyber threats. Datto SaaS Protection is a cloud-to-cloud backup solution built exclusively for MSPs, protecting thousands of businesses today. Datto SaaS Protection offers comprehensive backup, recovery and overall cyber resiliency for critical cloud data that lives in Microsoft 365 and Google Workspace applications. Protect against permanent data loss and recover from ransomware or user-error quickly with one-click restore. Get new clients up and running fast with streamlined onboarding and manage client backups from a single pane of glass. Discounts are applied to the total licenses sold across all of your clients, meaning that, the more you sell, the more you’ll make. Meet business continuity, compliance, and security requirements beyond Microsoft 365 and Google Workspace.

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Clearedin

Modern work is collaborative and multi-channel. Clearedin is the only email security platform built from the ground up to integrate with the rest of the platforms your organization uses to collaborate - from Microsoft 365 and Google Workspace to Slack and Zoom. Clearedin is ideal for organizations that use multiple cloud platforms to collaborate. We help security teams of all sizes scale their efforts through unprecedented cross-platform visibility and incident response capabilities. Clearedin uses AI to compare the behavior of a new email with the historical footprint of that sender and detect mismatches that would indicate that the account has been compromised. Clearedin alerts the user that even though an email is coming from a trusted sender, their account may have been compromised.Clearedin also locks the email so that the user cannot engage with it in any way, keeping them and your organization safe from attack.

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Sublime

Sublime Security

Sublime alleviates the pain of traditional black box email gateways with detection-as-code and community collaboration. Binary explosion recursively scans files delivered via attachments or auto-downloaded via links to detect HTML smuggling, suspicious macros, and other types of malicious payloads. Natural Language Understanding analyzes message tone and intent and leverages sender history to detect payload-less attacks. Link Analysis renders web pages using a headless browser and analyzes content using Computer Vision for impersonated brand logos, login pages, captchas, and other suspicious content. Sender analysis leverages organizational context to detect the impersonation of high-value users. Optical-Character-Recognition (OCR) extracts key entities from attachments such as callback phone numbers.

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Best Email Security Software for Google Workspace

Compare the Top Email Security Software that integrates with Google Workspace as of October 2025

What is Email Security Software for Google Workspace?

Guardz

N-able Mail Assure

MailRoute

Symantec Email Security.cloud

Kerio Connect

Xink

Spambrella

Guardian Digital

LuxSci

PhishProtection

Raptor Email Security

Keepnet Labs

ESET PROTECT Elite

Avanan

Material

Ziroh Mail

Vade

INKY

Darktrace

Abnormal AI

Aspida Mail

Armorblox

Graphus

DuoCircle

GreatHorn

Rotate

Datto SaaS Protection

Clearedin

Sublime

Best Email Security Software for Google Workspace

Compare the Top Email Security Software that integrates with Google Workspace as of October 2025

What is Email Security Software for Google Workspace?

Guardz

N-able Mail Assure

MailRoute

Symantec Email Security.cloud

Kerio Connect

Xink

Spambrella

Guardian Digital

LuxSci

PhishProtection

Raptor Email Security

Keepnet Labs

ESET PROTECT Elite

Avanan

Material

Ziroh Mail

Vade

INKY

Darktrace

Abnormal AI

Aspida Mail

Armorblox

Graphus

DuoCircle

GreatHorn

Rotate

Datto SaaS Protection

Clearedin

Sublime

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