Os 10 melhores softwares de segurança de e-mail analisados em 2026

Avaliações do melhor software de segurança do correio eletrónico

1. 

   1

   OnDMARC

   Best for DMARC policy enforcement

   • From $14/user/month (billed annually)

   Visit Website

   Customer Rating:5/5This rating combines scores from multiple user review sites to reflect overall customer sentiment about the product.

   

   Red Sift OnDMARC is a cloud-based email security platform that protects against phishing and business email compromise (BEC) by enforcing email authentication standards like DMARC, DKIM, and SPF. It helps ensure only authorized messages reach inboxes while blocking spoofing attempts that could compromise your brand or users.

   Why I picked Red Sift OnDMARC: I picked OnDMARC for its focus on dynamic domain control—you can manage SPF, DKIM, and DMARC records across all domains and subdomains without needing direct DNS access. This is especially helpful for IT teams juggling complex email setups. The platform also uses AI to assess your security posture and flag misconfigurations before they become vulnerabilities. Combined with its full DMARC enforcement timeline and hands-on customer support, it’s a strong pick for teams looking to shore up their email defenses quickly and confidently.

   Standout features & integrations:

   Features include Radar, which detects and resolves authentication issues fast; BIMI integration, helping your brand logo display in inboxes that support it; and Brand Trust, which flags lookalike domains that could be used in phishing attacks.

   Integrations include Microsoft Azure Active Directory, SAML, Okta, OnDMARC API, Google Workspace, Office 365, Cisco Secure Email, Mimecast, Proofpoint, Barracuda, Sophos, and Zscaler.

   Pros and Cons

   Pros:

   • Scalable for businesses of all sizes
   • Robust cloud-driven DMARC analysis
   • Active threat intelligence and real-time monitoring

   Cons:

   • Requires a good grasp of cloud platforms
   • Might not be ideal for firms without cloud infrastructure
   Learn more about OnDMARC:

   • Check out OnDMARC on their website
2. 

   2

   PowerDMARC

   Best for DMARC compliance

   • Free plan available
   • From $12/month (billed annually)

   Visit Website

   Customer Rating:4.8/5This rating combines scores from multiple user review sites to reflect overall customer sentiment about the product.

   

   PowerDMARC is a DMARC monitoring service designed for businesses looking to enhance their email security through authentication solutions. It serves IT teams and security professionals by offering DMARC, SPF, DKIM, MTA-STS, and BIMI functionalities. 

   Why I picked PowerDMARC: It excels in ensuring DMARC compliance, which is crucial for protecting your domain from phishing and email spoofing. It provides DMARC reporting and TLS-RPT reporting to give you insights into your email authentication status. The reputation monitoring feature helps you track your domain's reputation across the web. AI-driven threat intelligence adds an extra layer of protection by identifying potential threats.

   Standout features & integrations:

   Features include tools for DMARC and TLS-RPT reporting that provide comprehensive insights into your email security status. Reputation monitoring helps you track your domain's standing across different platforms. AI-driven threat intelligence identifies and mitigates potential threats before they impact your organization.

   Integrations include Microsoft 365, Google Workspace, Cisco Email Security, Proofpoint, Barracuda, Mimecast, Zimbra, SendGrid, Mailgun, and Amazon SES.

   Pros and Cons

   Pros:

   • Reputation monitoring capabilities
   • AI-driven threat intelligence
   • Effective DMARC compliance tools

   Cons:

   • Navigation feels clunky on smaller screens
   • Some terms in reports need explaining
   Learn more about PowerDMARC:

   • Check out PowerDMARC on their website
   • Read my in-depth review of PowerDMARC
3. 

   3

   Material Security

   Best for Google & Microsoft users

   • Free demo available
   • From $4/user/month (billed annually)

   Visit Website

   Customer Rating:4.7/5This rating combines scores from multiple user review sites to reflect overall customer sentiment about the product.

   

   Material Security is designed to meet the evolving needs of businesses using Google Workspace and Microsoft 365. It appeals to organizations seeking to enhance their email security, particularly those dealing with sensitive data and advanced threats.

   Why I Picked Material Security

   I picked Material Security because it excels in providing comprehensive email protection, particularly for Google Workspace and Microsoft 365 users. Its standout feature is the ability to detect and remediate sophisticated email threats that bypass native controls, ensuring your team can focus on strategic initiatives without worrying about email security vulnerabilities.

   Additionally, the platform's integration with existing security tools allows for seamless operationalization, reducing the complexity often associated with managing cloud environments. These features make it a reliable choice for organizations prioritizing email security.

   Material Security Key Features

   In addition to its robust threat detection, Material Security offers:

   • Phishing Protection: This feature automatically detects and blocks phishing attempts, safeguarding your email communications from malicious attacks.
   • Account Takeover Prevention: It provides tools to monitor and prevent unauthorized access to user accounts, protecting sensitive information.
   • Email DLP (Data Loss Prevention): This ensures that sensitive data is not accidentally shared or leaked through email, maintaining data integrity.
   • Secure File Sharing: Allows users to share files securely without compromising collaboration, ensuring data remains protected even in transit.

   Material Security Integrations

   Integrations include Google Workspace and Microsoft 365.

   Pros and Cons

   Pros:

   • Enables secure file sharing within email communications.
   • Supports advanced threat protection for email accounts.
   • Provides robust phishing protection.

   Cons:

   • May require additional configuration for optimal use.
   • Limited native integrations with other platforms.
   Learn more about Material Security:

   • Check out Material Security on their website
4. 

   4

   Heimdal

   Best for AI-powered fraud prevention

   • Free trial + free demo available
   • Pricing upon request

   Visit Website

   

   Heimdal's email security service is designed for organizations seeking to protect their email communications from threats like phishing, ransomware, and business email compromise. This service might appeal to industries such as healthcare, government, and education, where data protection and compliance are critical. By integrating advanced AI and machine learning for threat detection, Heimdal addresses the need for secure, reliable email communication, ensuring both safety and compliance with data governance standards.

   Why I Picked Heimdal

   I picked Heimdal for its unique approach to email security through advanced threat detection and AI-powered fraud prevention. Its ability to perform real-time attachment scanning provides you with a layer of protection against malware and phishing attempts. Additionally, the integration with major platforms like Microsoft 365 ensures seamless management and compliance with data governance standards. These features collectively address the urgent need for robust email security in today's digital landscape.

   Heimdal Key Features

   In addition to its standout threat detection capabilities, Heimdal offers several other features that enhance its email security service:

   • AI-Powered Fraud Detection: This feature utilizes over 125 analysis vectors to accurately detect and prevent email fraud.
   • Forensic Analysis: Provides detailed logging and post-delivery threat alerts, offering you enhanced visibility and security.
   • Seamless Platform Integration: Supports major platforms like Microsoft 365 and Google Workspace, ensuring efficient management and compliance.
   • Automated Response Capabilities: Enhances security by automating responses to detected threats, reducing the time and effort required for manual intervention.

   Heimdal Integrations

   Native integrations are not currently listed by Heimdal; however, the platform supports API-based custom integrations.

   Pros and Cons

   Pros:

   • Detailed asset and license visibility
   • Strong vulnerability and threat detection
   • Automates patching across endpoints

   Cons:

   • Interface requires onboarding time
   • No native integrations available
   Learn more about Heimdal:

   • Check out Heimdal on their website
5. 

   5

   Spike

   Best for team collaboration

   • Free plan available
   • From $4/user/month (billed annually)

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   Customer Rating:4.6/5This rating combines scores from multiple user review sites to reflect overall customer sentiment about the product.

   

   Spike is an email application designed for enhancing communication and collaboration within teams. It serves remote teams and customer support solutions by integrating features like a unified inbox and video meetings. 

   Why I picked Spike: It focuses on team collaboration, making it ideal for remote work environments. It combines email, chat, and video calls into one platform, reducing the need to switch between different apps. It's collaborative notes and task management features help your team stay organized. The AES-256 encryption ensures your data remains secure, aligning well with its privacy-focused approach.

   Standout features & integrations:

   Features include a unified inbox that merges emails and chats, reducing clutter and improving focus. Collaborative notes allow your team to create and edit documents together in real-time. Video meetings are integrated directly, so you can connect face-to-face without leaving the app.

   Integrations include Google Drive, Dropbox, OneDrive, Slack, Zoom, Trello, Asana, Google Calendar, Microsoft Teams, and Evernote.

   Pros and Cons

   Pros:

   • Integrated video meetings
   • Collaborative notes for teamwork
   • Unified inbox reduces app switching

   Cons:

   • Limited admin controls for growing teams
   • Takes time to adjust to the chat-style layout
   Learn more about Spike:

   • Check out Spike on their website
6. 

   6

   TitanHQ

   Best for phishing protection

   • 14-day free trial + free demo
   • Pricing upon request

   Visit Website

   Customer Rating:4.4/5This rating combines scores from multiple user review sites to reflect overall customer sentiment about the product.

   

   TitanHQ is an email security solution tailored for businesses focused on preventing phishing and other email-based threats. It serves IT teams and organizations needing protection against spam, malware, and zero-day attacks. 

   Why I picked TitanHQ: It excels in phishing protection, offering an impressive 99.9% spam blocking rate. Its AI-driven approach includes advanced threat detection and data leak prevention. The easy setup process makes it accessible, even for teams with limited IT resources. Excellent customer support ensures you get the help you need when you need it.

   Standout features & integrations:

   Features include advanced threat protection that detects and blocks sophisticated phishing attempts. Data leak prevention ensures sensitive information doesn't leave your organization unintentionally. Sandboxing technology analyzes suspicious emails in a safe environment before they reach your inbox.

   Integrations include Office 365, G Suite, Microsoft Exchange, Outlook, Zimbra, Kerio Connect, Lotus Domino, Barracuda, and Mimecast.

   Pros and Cons

   Pros:

   • Excellent customer support
   • High spam blocking rate
   • AI-driven threat detection

   Cons:

   • Reporting layout can feel cluttered
   • Filter tuning needs regular check-ins
   Learn more about TitanHQ:

   • Check out TitanHQ on their website
7. 

   7

   Proofpoint Email Protection

   Best for large enterprises

   • Free demo available
   • From $15/user/month (billed annually)

   Visit Website

   

   Proofpoint Email Protection is a cloud-based solution that helps organizations block phishing, malware, and other targeted email threats. It’s mainly used by large IT teams who need strong visibility into their email traffic and threat response tools.

   Why I picked Proofpoint Email Protection: It gives your team granular control over policy settings and filtering logic. It uses dynamic reputation scoring and targeted attack protection to catch threats early. The platform helps you isolate and analyze suspicious messages before they reach users. It also lets you track attacks by user, location, and threat type in one place. If you’ve got a large org and complex risk profiles, it’s built for that kind of scale.

   Standout features & integrations:

   Features include message tracing with full click-through logs, delegated admin roles for team-based management, and granular quarantine controls. You can set custom rules that apply across user groups or locations. It also tracks threats by campaign, so your team can study how attacks unfold.

   Integrations include Microsoft 365, Google Workspace, Okta, Azure AD, Splunk, ServiceNow, Slack, Palo Alto Networks, and CrowdStrike.

   Pros and Cons

   Pros:

   • Offers flexible message re-routing tools
   • Supports detailed forensics for email events
   • Filters adjust based on user threat profile

   Cons:

   • Alert noise if policies aren’t tuned well
   • Takes time to set up custom rule sets
   Learn more about Proofpoint Email Protection:

   • Check out Proofpoint Email Protection on their website
8. 

   8

   Mimecast Email Security

   Best for small businesses

   • From $12/user/month (billed annually)

   Visit Website

   

   Mimecast Email Security is a cloud-based service designed to protect businesses from email threats such as phishing, malware, and spam. It serves small businesses by providing email protection, archiving, and continuity services. 

   Why I picked Mimecast Email Security: It is tailored for small businesses, offering comprehensive protection without the need for extensive IT resources. The service includes targeted threat protection to block spear-phishing and impersonation attacks. Its easy-to-use dashboard allows you to monitor and manage email security effectively. Additionally, Mimecast provides continuity services that ensure email access during server downtime.

   Standout features & integrations:

   Features include targeted threat protection that helps identify and block sophisticated email threats. Email archiving ensures compliance and data retention with easy access to archived emails. Continuity services keep your email up and running even during outages, ensuring business continuity.

   Integrations include Microsoft 365, Google Workspace, Microsoft Exchange, Outlook, Salesforce, SharePoint, Slack, Box, Dropbox, and Zendesk.

   Pros and Cons

   Pros:

   • Email continuity services
   • Effective threat protection
   • Suitable for small businesses

   Cons:

   • Reports sometimes lag or fail to load
   • Setup can drag for small IT teams
   Learn more about Mimecast Email Security:

   • Check out Mimecast Email Security on their website
9. 

   9

   Microsoft Defender for Office 365

   Best for Office 365 users

   • 30-days free trial
   • From $5/user/month (billed annually)

   Visit Website

   

   Microsoft Defender for Office 365 is an email security solution designed to protect Office 365 users from threats like phishing and malware. It primarily serves businesses using the Microsoft 365 suite, offering protection and threat management. 

   Why I picked Microsoft Defender for Office 365: It's tailored for Office 365 users, integrating directly with the suite to provide seamless protection. The solution includes advanced threat protection features that detect and block harmful emails. Real-time threat intelligence helps your team stay informed about emerging risks. With its built-in protection, it simplifies security management for businesses using Office 365.

   Standout features & integrations:

   Features include advanced threat protection that identifies and neutralizes email threats before they reach your inbox. Real-time threat intelligence provides insights into potential risks, helping you stay ahead of threats. The solution also offers automated investigation and response to streamline threat management.

   Integrations include Microsoft Teams, SharePoint, OneDrive, Azure Active Directory, Dynamics 365, Power BI, Yammer, Skype for Business, Intune, and PowerApps.

   Pros and Cons

   Pros:

   • Automated investigation and response
   • Real-time threat intelligence
   • Seamless integration with Office 365

   Cons:

   • Hard to audit changes made by admins
   • Alert rules take time to understand
   Learn more about Microsoft Defender for Office 365:

   • Check out Microsoft Defender for Office 365 on their website
10. 

    10

    Barracuda

    Best for data loss prevention

    • 14-day free trial
    • From $0.98/user/month (min 10 seats)

    Visit Website

    

    Barracuda is an email protection solution designed to safeguard businesses from threats like phishing, malware, and email-based attacks. It caters to organizations of all sizes, offering comprehensive data loss prevention and threat protection. 

    Why I picked Barracuda: It focuses on data loss prevention, making it ideal for businesses that need to protect sensitive information. Barracuda's advanced threat protection identifies and blocks sophisticated threats. Its email encryption ensures that your sensitive data remains secure. Additionally, the easy-to-use interface allows you to manage settings without extensive IT knowledge.

    Standout features & integrations:

    Features include email encryption that secures sensitive information from unauthorized access. The solution provides advanced threat protection to identify and block sophisticated email threats. Data archiving ensures compliance and easy access to important communications.

    Integrations include Microsoft 365, Google Workspace, Microsoft Exchange, Outlook, Salesforce, Slack, Box, Dropbox, ServiceNow, and Zendesk.

    Pros and Cons

    Pros:

    • User-friendly interface
    • Advanced threat protection
    • Effective data loss prevention

    Cons:

    • Rule builder takes time to understand
    • Quarantine emails don’t always get delivered
    Learn more about Barracuda:

    • Check out Barracuda on their website