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Comprehensive Guide to the Best Email Security Solutions in 2018

July. 15,2025

Discover the top email security solutions of 2018 that protect organizations from threats like phishing, malware, and spam. Learn about leading gateways such as Cisco ESA, Clearswift SEG, and Fortinet FortiMail, including their features, deployment options, and how they enhance cybersecurity defenses. Stay ahead of evolving email threats with this comprehensive guide to securing your digital communications, essential for businesses of all sizes looking to safeguard sensitive data and maintain operational integrity amidst rising cyber threats.

Comprehensive Guide to the Best Email Security Solutions in 2018

Top Email Security Technologies of 2018: Safeguarding Your Digital Communications

In an era where digital communication forms the backbone of business operations, ensuring the security of email exchanges has become more crucial than ever. Organizations face constant threats from malicious emails, including spam, phishing attacks, malware, and advanced encrypted threats that can bypass traditional security measures. Implementing robust email security solutions is vital to protect sensitive information, prevent data breaches, and maintain operational integrity. This comprehensive guide explores the leading email security tools and gateways available in 2018, highlighting their features, deployment options, and how they contribute to a secure email environment.

The landscape of cybersecurity threats continues to evolve rapidly, making it imperative for businesses of all sizes to adopt advanced email security measures. These solutions act as both a shield and a filter, preventing malicious content from infiltrating organizational networks and ensuring that communication channels remain secure and trustworthy. From hardware appliances to cloud-based solutions, the options are diverse, catering to different organizational needs and technical environments. Here, we provide an in-depth review of some of the most highly regarded email security gateways in 2018 that are designed to combat sophisticated threats and enhance overall security posture.

Leading Email Security Gateways of 2018: Features and Benefits

Choosing the right email security solutions involves understanding the features that address specific organizational challenges. Below are some top-rated gateways renowned for their protective capabilities, deployment flexibility, and ease of management:

Cisco Email Security Appliance

The Cisco Email Security Appliance (ESA) stands out as a comprehensive defense mechanism against a multitude of email-based threats. It offers an array of features designed to detect, block, and eliminate malicious content before it reaches end-users. Cisco ESA supports various deployment models, including dedicated hardware, cloud-based platforms, hybrid setups, and virtual appliances, providing flexibility to organizations across different scales. The virtual version is compatible with VMware ESXi, making it suitable for virtualized data centers.

For organizations of varying sizes, Cisco offers tailored models: the M170 and M380 designed for small to medium-sized enterprises with up to 1,000 users, the M380 suitable for larger organizations with around 10,000 users, and the M680 designed for extensive enterprise deployments. These appliances incorporate advanced threat intelligence, email encryption, data loss prevention, and detailed reporting features, ensuring a comprehensive security posture.

Clearswift Secure Email Gateway

Clearswift's Secure Email Gateway (SEG) provides real-time monitoring and analysis of all email traffic. It scrutinizes both inbound and outbound messages, identifying malicious content such as malware, phishing attempts, and data leaks. The solution supports deployment on-premises, in private cloud environments, or as a virtual appliance compatible with VMware or Microsoft Hyper-V, which offers deployment versatility and operational flexibility.

Clearswift SEG emphasizes content inspection and contextual analysis, enabling it to detect sophisticated threats hidden within seemingly benign emails. Its adaptive security policies can be customized according to the organization's needs, helping reduce false positives while maintaining high security standards.

Fortinet FortiMail

Fortinet FortiMail is another robust email security platform, known for its strong filtering capabilities that prevent malicious messages from reaching users. It employs advanced threat detection techniques to block phishing scams, malware-laden emails, and spam, significantly lowering the risk of cybersecurity incidents.

FortiMail provides a variety of deployment options, including hardware appliances, virtual appliances, and cloud-based services, accommodating organizations' diverse infrastructure requirements. The physical appliances come in five different models, each designed to suit small businesses, large enterprises, or service providers, ensuring scalability and flexibility.

The platform also integrates seamlessly with Fortinet’s Security Fabric ecosystem, enabling comprehensive threat management across network, endpoint, and cloud environments. Regular updates and machine learning capabilities help FortiMail stay ahead of evolving email threats, making it a vital component in any cybersecurity strategy.

Why Robust Email Security Is Essential for Today’s Enterprises

Email remains one of the most common attack vectors exploited by cybercriminals. Studies show that most security breaches originate through email channels, often due to targeted phishing campaigns or malware attachments. Implementing a reliable email security gateway not only mitigates these risks but also ensures compliance with data protection regulations and maintains organizational reputation.

Effective email security solutions provide multiple layers of defense, including threat detection, archiving, encryption, and policy enforcement. They can be managed centrally, enabling security teams to respond swiftly to emerging threats and audit communications efficiently. As the tactics of cyber adversaries become more sophisticated, organizations must continually evaluate and upgrade their email security infrastructure to counter new challenges.

Key Factors to Consider When Selecting an Email Security Solution

When evaluating different email security gateways, organizations should consider several critical factors:

Deployment flexibility—hardware, virtual, or cloud-based options

Protection capabilities—ability to detect phishing, malware, data leaks, and encryption threats

Integration—compatibility with existing security infrastructure and email systems

Ease of management—centralized control and reporting features

Scalability—support for organizational growth

Vendor support and updates—regular threat intelligence updates and customer support services

In conclusion, investing in top-tier email security solutions in 2018 is essential for organizations aiming to safeguard their digital communication channels effectively. By selecting the right gateway tailored to their needs, businesses can significantly reduce cybersecurity risks, ensure compliance, and maintain customer trust.