Best Email Security Software for Gmail

Find and compare the best Email Security software for Gmail in 2025

Use the comparison tool below to compare the top Email Security software for Gmail on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    Guardz Reviews

    Guardz

    Guardz

    $9 per month
    56 Ratings
    See Software
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    Guardz is an AI-powered cybersecurity solution that provides MSPs with a platform to protect and insure small and growing businesses from cyberattacks. The platform provides automatic detection and response to protect users, devices, cloud directories, and data. We simplify cybersecurity management to allow businesses to focus on their growth without being bogged down by security complexity. The Guardz pricing model is scalable and cost effective and ensures comprehensive digital asset protection. It also facilitates rapid deployment and business growth.
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    NeoCertified Secure Email Reviews
    Top Pick
    NeoCertified secures sensitive information via our secure email app across our versatile Cloud-based platform. It works on any web browser through Microsoft Office 365/Outlook plug ins and Gmail integration. You can also download the iPhone + Android mobile apps directly to your mobile devices. Since 2002, we have been providing federally compliant, secure mail solutions. We have helped businesses send and get secure emails from any web browser or mobile device. NeoCertified works with all email providers, giving businesses the flexibility and guaranteed protection they need.
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    Mailfence Reviews
    Top Pick

    Mailfence

    Mailfence

    $2.50/month/user
    21 Ratings
    Mailfence is an encrypted email provider that uses OpenPGP-based encryption and digital signatures. Mailfence offers a variety of features that allow for collaboration without compromising security or convenience. Mailfence documents allows you to securely store and edit documents. You can also share documents with your team by pressing a button. Mailfence calendar will help you keep track of all your tasks, meetings, events, and other important information. Mailfence contacts will save your contacts and allow you to create mailing lists to maximize efficiency. Mailfence was designed to be fully interoperable. This means that you can sync Mailfence with any service. Mailfence offers fully customizable whitelabel versions for its Mailfence interface. Mailfence donates 15% from PRO subscriptions to IFF or EDRI to support the fight for Online privacy.
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    N-able Mail Assure Reviews
    Top Pick
    N-able Mail Assure, a cloud-based email security system, provides advanced threat protection for both inbound and outbound emails using collective threat intelligence, long-term email archive, and 24/7 email continuity. The service offers multi-tenant web-interfaces with predefined settings, reporting and views that allow for control and visibility over all email flows. N-able Mail Assure's proprietary technology uses input from large volumes of email data to feed the Intelligent Protection and Filtering engine. This, combined with real-time pattern threat detection leveraging a variety if filtering technologies, helps protect against spam, viruses and phishing attacks as well as impersonation, malware and other email-borne threats.
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    Trustifi Reviews
    Top Pick
    Trustifi provides industry-leading email security solutions that help small, medium, and large enterprises manage threat detection, regulatory compliance and data encryption. Easily deployable on Outlook, Gmail, and any other email server via relay **Advanced Threat Protection** -Malware/ransomware virus detection and BEC attack prevention and alarms **Data Loss Prevention** --100% compliant HIPAA/HITECH and PII, GDPR. FSA, LGPD, CCPA and more **Encryption** -NSA-grade. Only select Enterprise customers have access the company branding and product white-labeling. One-on-one training for teams. There are many encryption requirements, so there is no one-size-fits all solution for email security. Many times, customized solutions are available on request and often free of charge.
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    PreVeil Reviews

    PreVeil

    PreVeil

    $20 per user per month
    5 Ratings
    PreVeil revolutionizes end-to-end encryption, offering robust protection for organizations' emails and files against threats like phishing, spoofing, and business email compromise. The platform is designed to be user-friendly for employees and straightforward for administrators. With PreVeil, enterprises gain access to a secure and intuitive encrypted email and cloud storage solution that safeguards critical communications and documents. Utilizing top-tier end-to-end encryption, PreVeil ensures that data remains secure throughout its lifecycle. Additionally, the platform features a “Trusted Community” that facilitates safe communication among employees, contractors, vendors, and other external parties. This innovative feature allows users to share sensitive information confidently, knowing they are protected from common cyber threats. Ultimately, PreVeil empowers organizations to maintain a high level of security while fostering a collaborative environment.
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    Hornetsecurity Advanced Threat Protection Reviews
    Thanks to the extensive capabilities of Advanced Threat Protection, even the most advanced cyber threats are rendered ineffective; tools such as freezing, URL scanning and rewriting, the Sandbox Engine, and Malicious Document Decryption work together to counter various attack techniques, ensuring robust defense against dangers like Ransomware, Targeted Attacks, Business Email Compromise, and a host of others. This multi-layered approach significantly enhances the security of your IT infrastructure, offering peace of mind in an increasingly perilous digital landscape.
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    Kerio Connect Reviews
    Experience secure, enterprise-level email, calendar, and collaboration tools without breaking the bank. Kerio Connect offers a comprehensive suite of features and capabilities for messaging and collaboration without the intricacies and hefty costs associated with other platforms. It seamlessly integrates email with shared calendars, scheduling, contact management, tasks, notes, shared and public folders, and instant messaging. You can synchronize your messages directly to your preferred mobile devices using Microsoft ActiveSync. The Instant Messaging feature is compatible with XMPP, allowing use with various third-party chat and IM applications on both desktop and mobile devices. Installation of Kerio Connect takes just 10 minutes, with users able to start working within an additional 10 minutes. This solution can be deployed either on-premises or through partner-hosted cloud environments, accommodating users on Mac, Windows, or Linux systems. Furthermore, it provides comprehensive support for Outlook on both Windows and Mac, as well as numerous other IMAP or POP-compliant email clients, ensuring versatility and ease of integration for all users.
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    Symantec Email Security.cloud Reviews
    Ensure the security of Microsoft Office 365, Google G Suite, and on-premises email systems by utilizing the most comprehensive email security solution available in the industry. Shield users from threats like spear phishing, credential theft, and ransomware attacks through the implementation of Email Threat Isolation. Combat pervasive email hazards such as spear phishing, ransomware, business email compromise, and spam with robust protective measures. Foil spear phishing attempts through a multi-layered defense that includes threat isolation, spam filtration, advanced email security analytics, and integrated user training and awareness programs. Defend against the latest ransomware attacks with advanced content defense strategies, sandboxing techniques, and link protection technologies that are designed to identify emerging and stealthy threats, including zero-day vulnerabilities. Counter business email compromise by employing impersonation protection, enforcing sender authentication, and implementing brand protection strategies. Enhance your brand's reputation and mitigate risks by automating the enforcement of sender authentication protocols like DMARC, DKIM, and SPF through the use of Symantec Email Fraud Protection, which addresses the practical challenges of maintaining email security effectively. By investing in these comprehensive solutions, organizations can safeguard their communications while fostering a culture of security awareness among users.
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    Xink Reviews

    Xink

    Xink

    $1/user/month
    Centrally manage email signatures for all users on all their devices. The platform is built for Microsoft 365 and Google Workspace, and it has decades 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.
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    Guardian Digital Reviews

    Guardian Digital

    Guardian Digital

    Monthly & Annual Subscriptions
    Guardian Digital protects against email threats such as phishing, zero day exploits, and crippling ransomware attacks. These are just some of the many threats email users face every single day. Email security is a business security issue, as more than 90% of cyber attacks originate in an email. A purpose-driven solution is the best way to protect email. It closes critical security gaps in Microsoft 365 and Google Workspace. It also provides remote support, expert setup and ongoing remote management. We provide real-time cybersecurity business insight to help you assess your current risk profile and protect you against the threats that all businesses face when using email.
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    dmarcian Reviews
    Founded in 2012 by a primary author of the DMARC specification, dmarcian is dedicated to upgrading the entire world’s email by making DMARC accessible to all with superior tooling, educational resources, and knowledgeable support. Used by thousands and recommended by support teams around the globe, our DMARC Management Platform grants you visibility into and control over how your email domains are used. Our platform provides actionable insights and alerts for organizations of any size to deploy DMARC and its supporting technologies of SPF and DKIM, visualize email delivery data, and manage a secure domain services infrastructure. Rectify email security vulnerabilities, improve domain and brand reputation, and meet the growing demand of DMARC compliance requirements with our best-in-class offerings.
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    Encyro Reviews

    Encyro

    Encryo Inc

    $9.99/month/user
    Encyro offers secure file storage, encrypted email and electronic signatures. Encyro's award-winning design makes it easy for you and your clients. Clients don't have to sign up for portal accounts. File sharing and encrypted messaging Encyro allows you to send directly to any email address. Encyro protects your data both during transmission as well as storage to ensure that you are in compliance with HIPAA and other compliance standards such as the GDPR, FINRA and SOX. Securely receive via your custom-branded upload page. Clients do not need to log in or go through additional steps. Electronic Signatures Encyro esignatures are designed for remote signing to protect your transaction. You can control the login options as well as the type of signature to ensure that only the right person is signing. Encyro offers custom branding, automated reminders, re-usable templates for e-sign, and re-usable Encyro e-sign templates. Access codes that comply with NIST-8006363 can be sent by SMS or text for additional security.
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    Raptor Email Security Reviews

    Raptor Email Security

    Peregrine Computer Consultants Corporation

    $15/server/month
    Raptor Email Security, an MX-based email security system, was designed by industry experts to prevent spam, phishing and malware attacks. It uses a unique scoring framework, multiple technologies, including ClamAV, MIMEDefang and Sendmail. Our spam experts will take care of the annoying spam! Zero Spam. Zero Tickets. 2X Resources. Your email will go through our servers. This ensures that your server is protected from the majority of cyber attacks. You can increase your hosting revenue by adding more hosting accounts and monetize your server with less resource consumption. Raptor Email Security comes with Raptor Review, which provides an expert analysis of your email configuration. It is a white glove service that provides a phishing hotline to help you fix any email problems, including blocking spam, improving deliveryability, identifying scams and finding missing emails. It takes only minutes to set up. Get a free trial for 30 days!
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    Document GPS Reviews

    Document GPS

    ShelterZoom

    $5 per month
    Introducing a unique solution for tokenizing your digital files directly from your email, providing a seamless way to safeguard documents, videos, audio files, and more with just one click. Enjoy simplified ownership and control over your digital content like never before, all while maintaining your existing email attachment workflow with end-to-end encryption. With the ability to manage who can download, share, and view your attachments, you can ensure that your files remain secure. Real-time tracking allows you to see who has accessed your files, whether they downloaded, shared, or viewed them. This innovative platform streamlines the management and oversight of your email attachments in a single library, making it easier than ever to keep track of important documents. Clients can receive a secure link for safe file exchanges, enhancing the security of your communications. Additionally, you can block your device screen to guard against unauthorized screenshots and copying of sensitive information. Experience unlimited electronic signatures directly within your email, delivering unmatched convenience and protection. This robust system effectively mitigates risks associated with data breaches, ransomware, and wire fraud, ensuring comprehensive security from desktop to mobile and beyond. Always retain control over your files, knowing who originated them and their intellectual property rights, while enjoying peace of mind in your digital transactions.
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    RMail Reviews

    RMail

    RPost

    $7/month/user
    RMail®, the e-security platform from RPost®, is a global leader in 2000. RMail is a specialist in elegantly simple email encryption for privacy, compliance, legal e–delivery proof secure file sharing, email rights management, email impostor protection and email encryption. RMail's transmission security services are often used by businesspeople and business systems that need to send sensitive or consumer-regulated information. These RMail services can be used for messages that require additional functionality beyond standard email. They include (a) an easier-to-use and more automated email encryption to ensure privacy compliance; (b) a verifiable proof record of who sent what email to whom; (c) assurance and peaceof mind in relation to delivery and open status email of important and time-deadline emails, (d) need to have a timestamped proof that content was delivered; (f) the need to securely share large files.
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    Avanan Reviews
    Enterprise AI cloud security is crucial for safeguarding against threats such as phishing, malware, data breaches, account takeovers, and shadow IT, particularly for comprehensive cloud applications like Office 365™. Traditional security measures often overlook a significant number of harmful emails, highlighting the need for enhanced email security solutions tailored to protect businesses effectively. In response to this challenge, Avanan revolutionized email security in 2015, recognizing that conventional gateways were unable to adapt to the evolving cloud landscape. Their patented technology provides robust security for all collaboration applications, addressing threats like ransomware, account takeovers, business email compromise (BEC), and supply chain attacks. Impressively, Avanan has achieved a 99.2% reduction in phishing attacks making it to users' inboxes. Utilizing True AI, which draws on extensive data sets, Avanan is designed to intercept even the most advanced phishing attempts prior to them reaching users' inboxes. The implementation of API, machine learning, and AI plays a pivotal role in enhancing cloud email security. Serving over 5,000 customers, with a notable 60% hailing from large enterprises, Avanan has garnered recognition as a leading email security solution in both Gartner Peer Insights and G2. This innovative approach not only fortifies security but also ensures that businesses can operate confidently in the cloud environment.
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    MailList King Reviews

    MailList King

    Xequte Software

    $99.50 one-time payment
    MailList King provides a robust mailing list server solution right on your PC, making it simple to create, oversee, and engage with individuals who are interested in your website, products, or organization. This software seamlessly integrates with widely used email applications like Outlook and Gmail, or it can connect directly to your mail servers to manage mailing list communications, including subscriptions, unsubscriptions, and undeliverable messages, while also sending processing confirmations and double opt-in verifications along with the customized rich text messages you design. If you're currently juggling a mailing list using Excel or Outlook Contacts, MailList King can significantly streamline your process by automatically managing the addition and removal of contacts, allowing you to focus more on crafting engaging newsletters and impactful sales communications. There's no need for advanced computer skills to utilize MailList King, making it an accessible choice for anyone looking to enhance their email marketing efforts. Moreover, its user-friendly interface ensures that even those with minimal technical knowledge can benefit from its powerful features.
  • 19
    Echoworx Reviews
    As a cloud-based, full-managed SaaS email encryption provider, Echoworx alone offers 8 ways to send protected mail, with support for 9 authentication options and up-to 28 languages – ensuring secure communication anywhere, on any device. Key features: • Multiple ways to send secure mail ( Web Portal, S/MIME, PGP, Secure PDF, Certificate Encryption, Secure Attachment (PDF, Office, ZIP), TLS with fallback) • More authentication options (Full OAuth Access, Self-Registration, SMS, Shared Secret Passphrase, SSO, System-Generated Verification Codes, Passwordless, and Multi-Factor Authentication (MFA) • Free full proof of concept trial (POC) • 24/7 expert support • End-to-end deployment • Recall and tracking options for secure mail • Extensive branding • Self Service Account Management
  • 20
    BooleBox Reviews
    BooleBox serves as a robust content security platform dedicated to safeguarding the integrity and confidentiality of client data against unauthorized access, employing top-tier encryption methods to shield sensitive information from cyber threats. With its sophisticated encryption technology and a range of customizable security options, users can effortlessly create, edit, share, and categorize files and folders without sacrificing ease of use. BooleBox's solutions ensure that your data remains protected across various environments, whether at the office, in the cloud, during email transmission, in collaborative projects, or on widely used platforms like Windows, Outlook, Gmail, OneDrive, and SharePoint. Recognizing the potential digital vulnerabilities that exist, we provide unparalleled protection, acting as a vigilant guardian for your data that remains with it at all times. Our commitment to safeguarding your information extends to managing substantial volumes of data across diverse business sectors. Since our inception in 2011, we have consistently delivered this essential service, adapting and evolving to meet the changing needs of our clients. Our dedication to data protection not only enhances security but also fosters trust and reliability in digital interactions.
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    Ziroh Mail Reviews
    Even if you avoid sending sensitive emails, doesn't it concern you that your email provider has access to your messages through a backdoor? They can grant access to third parties at any moment, as they are the ones who set the rules and exploit the loopholes. Have you ever considered what a single online purchase receipt can disclose about you? It can reveal your fashion preferences, your financial situation, your payment choices, your address, the type of device you use, and much more. This is quite unsettling, isn't it? Unfortunately, numerous companies and fraudsters are already exploiting this information. Every small piece of information about you is like gold to third parties, who will utilize it to better understand you, influence your purchasing decisions, and, in some cases, even impersonate you on the internet. If you believe your email service is completely secure, it might be wise to conduct a simple search; you'll find that major email providers have faced breaches. Do you still feel reassured? A straightforward, unobtrusive privacy solution exists that can safeguard your emails no matter where they are sent or received, ensuring your peace of mind.
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    mxHERO Reviews

    mxHERO

    mxHERO

    $5 month/user
    mxHERO is a cutting-edge solution for securing email attachments by seamlessly integrating email with cloud storage services. By substituting traditional email attachments with secure links to cloud storage, mxHERO ensures that sensitive documents are not transmitted or stored insecurely outside of the organization, as typically occurs with standard email practices. The risks associated with email communication can jeopardize sensitive information both internally and externally. mxHERO guarantees that all email content is handled through the content platforms preferred by clients, enhancing security. This innovative service automatically transfers attachments to secure cloud storage, effectively addressing issues related to content sprawl, version control, and file size limitations. Additionally, it mitigates risks associated with data breaches, whether the assets are in transit or at rest. Major global brands and leading enterprises rely on mxHERO for this vital security enhancement. While email presents significant security challenges, it remains essential for business operations. mxHERO provides a way for clients to bolster the security of their existing email systems without causing disruption to their employees or customers, ensuring a smoother transition to a safer email environment.
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    Smartlockr Reviews

    Smartlockr

    Smartlockr

    €0.42 / month / user
    Smartlockr is a people-centric data security platform to easily enable secure email and file sharing for an entire organization. By putting the people in an organization first, Smartlockr offers a user-friendy platform that actively helps people prevent data breaches. The reason for that is that the human error is the main cause of data breaches worldwide. Smartlockr works on and with every operating system and device. It's even available as a plug-in for Microsoft 365 (Outlook). Of course, it can be integrated into any existing systems, and it's even available as an SMTP relay service or a combination of all these options. Smartlockr can also be used to securely send and receive large files of up to 5 TB. Smartlockr is compliant with all privacy regulations and security standards like GDPR, ISO, NTA 7516.
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    INKY Reviews

    INKY

    INKY Technology

    INKY is an award-winning cloud based email protection software. It protects businesses against phishing attacks, as well as blocking spam and malware. INKY uses domain-specific machine-learning and computer vision to identify zero-day phishing emails and block them from reaching legacy email systems. For suspicious emails, warning banners are included in the email. In minutes, integrates into Office 365 across the organization. Safe/Unusual/Malicious warnings let users know how to treat the email. Our advanced dashboard provides complete visibility and tracking of the threats being blocked. INKY's email security software inserts user-friendly warnings into emails. This provides specific guidance to educate and protect your users. Safe/Unusual/Malicious warnings with details guide the user to take a closer look or proceed cautiously. Report an email with just a click is a favorite feature of our clients.
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    Agari Reviews
    Utilize Trusted Email Identity to safeguard both employees and clients from sophisticated email threats. These advanced attacks exploit significant security gaps that traditional email protection measures fail to cover. Agari instills confidence in workers, customers, and partners to trust their email communications. Its innovative AI, with daily updates from over 300 million machine learning models, distinguishes legitimate messages from harmful ones. Drawing upon a vast repository of trillions of global email interactions, it offers profound insights into patterns and connections. With years of expertise in establishing email security benchmarks, Agari has been embraced by numerous Global 2000 organizations to enhance their protection measures. This comprehensive approach ensures that users are better equipped to navigate the complexities of modern email security challenges.
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