Top Managed Email Security Services in the Market


In today’s digital landscape, ensuring robust email security is crucial for businesses of all sizes. Managed email security services provide comprehensive protection against a wide array of threats, including phishing, malware, spam, and data breaches. This article reviews some of the top managed email security services currently available in the market, helping businesses choose the best solution to safeguard their email communications.

1. Mimecast

Mimecast is renowned for its comprehensive email security suite, offering robust protection against advanced threats. Key features include:

  • Advanced Threat Protection: Combats phishing, malware, and impersonation attacks with AI-driven threat detection.
  • Spam Filtering: Effective spam and malware filtering to reduce inbox clutter and potential threats.
  • Data Leak Prevention: Prevents unauthorized data sharing via email.
  • Email Continuity: Ensures email access even during outages.

Mimecast’s solutions are designed to integrate seamlessly with existing email systems, providing a seamless and secure user experience.

2. Proofpoint

Proofpoint is a leader in email security, known for its advanced threat protection capabilities. Key features include:

  • Targeted Attack Protection: Uses machine learning to identify and block advanced threats.
  • Email Encryption: Ensures sensitive data remains secure during transmission.
  • Compliance Solutions: Helps businesses comply with various data protection regulations.
  • Threat Intelligence: Offers real-time threat intelligence to stay ahead of emerging threats.

Proofpoint’s comprehensive solutions make it a preferred choice for businesses looking to protect their email communications.

3. Barracuda Networks

Barracuda Networks offers a robust suite of email security services tailored for businesses of all sizes. Key features include:

  • Spam and Virus Protection: Blocks spam, malware, and other email-borne threats.
  • Advanced Threat Protection: Uses sandboxing and other techniques to detect and block sophisticated attacks.
  • Data Leak Prevention: Protects against accidental or intentional data leaks.
  • Email Archiving: Provides secure, scalable email archiving for compliance and eDiscovery.

Barracuda’s solutions are easy to deploy and manage, making them a popular choice for businesses seeking comprehensive email security.

4. Microsoft Defender for Office 365

Microsoft Defender for Office 365 offers robust protection for businesses using Microsoft 365. Key features include:

  • Advanced Threat Protection: Protects against phishing, malware, and zero-day threats.
  • Safe Links and Attachments: Scans links and attachments in real-time to prevent malicious content from reaching users.
  • Threat Intelligence: Provides insights into emerging threats and attack patterns.
  • Automated Response: Automates threat response and remediation processes.

As part of the Microsoft 365 suite, this service integrates seamlessly with other Microsoft products, providing a unified security experience.

5. Symantec Email

Symantec Email, now part of Broadcom, offers comprehensive email security with a focus on advanced threat protection. Key features include:

  • Multi-layered Security: Combines multiple layers of protection to detect and block threats.
  • Anti-phishing and Anti-malware: Uses advanced algorithms to identify and mitigate phishing and malware attacks.
  • Data Protection: Ensures sensitive information is protected and helps with regulatory compliance.
  • Email Continuity: Provides continuous email access during server outages.

Symantec’s reputation and robust feature set make it a reliable choice for businesses seeking top-tier email security.

6. Cisco Email Security

Cisco Email Security provides a powerful solution for protecting email communications. Key features include:

  • Advanced Malware Protection: Uses machine learning and global threat intelligence to detect and block threats.
  • Spam and Virus Defense: Efficiently filters out spam and viruses to keep inboxes clean.
  • Data Loss Prevention: Prevents sensitive data from being shared outside the organization.
  • Email Encryption: Protects email content from unauthorized access during transmission.

Cisco’s integration with its broader security ecosystem offers enhanced protection and seamless management.


Choosing the right managed email security service is crucial for protecting your business against the ever-evolving landscape of email-based threats. Services like Mimecast, Proofpoint, Barracuda Networks, Microsoft Defender for Office 365, Symantec Email, and Cisco Email Security offer robust solutions tailored to different business needs. By leveraging these top-tier managed email security services, businesses can ensure the integrity, confidentiality, and availability of their email communications, thereby safeguarding sensitive information and maintaining regulatory compliance.

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