Four Email Security Gateways to Consider

When evaluating an email security gateway, you should compare the false-positive and false-negative rates. Unfortunately, many email security gateway vendors will only publish one or two detection rates, which makes comparison difficult. Instead, look for products that can detect more than one email threat simultaneously. The best email security gateway will prevent both types of attacks, so your organization can be confident that it’s not being compromised. However, if you’re using Office365, you should check whether this service supports a firewall.

Cloud-based email security gateways

Secure email gateways are available as SaaS, on-premises appliances, or integrated with popular email platforms like Office365 and Google Workplace. When choosing the right gateway, you want to choose one that can scan emails on the go and identify the most common threats. In addition, a good gateway should be easy to deploy across any network architecture and provide a detailed report on security health. Finally, a good gateway can even serve as proof of compliance.

The cost of email security gateways varies significantly depending on the features and the type of service. For example, public cloud services charge per email sent and received, while appliance gateways typically charge a one-time purchase fee plus a subscription fee for updates and threat intelligence. Choose an email security gateway that is transparent to end-users and has minimal client support. While gateways are generally very accurate in their classification of email messages, mistakes and issues may still occur. In these cases, security administrators can step in and intervene.

On-premises appliances

Secure email gateway software protects an email system from attack and reduces the possibility of user error, especially when it comes to social engineering attacks. Email security gateways are available in different deployment models, including on-premises appliances and SaaS solutions. Instead, they do not host user email accounts, sit in a DMZ or a network’s perimeter and analyze email traffic. In addition to protecting data from phishing and malware, a secure email gateway will scan inbound and outbound emails for malicious URLs and attachments. It protects from business email compromise and social engineering attacks. It will reject email messages with suspicious content and may also enable administrators to view quarantined emails. To avoid this risk, companies should implement effective employee training programs. A secure email gateway is a critical part of their overall security strategy.

Office365

Microsoft’s Office 365 is a popular cloud-based email service with over 155 million users. The number is increasing each month, and the service continues to attract 3 million new users every month. Unfortunately, with so many people relying on Office 365, the service has become a prime target for cybercriminals. These malicious email addresses can bypass Exchange Online Protection and Advanced Threat Protection, allowing them to infect a company’s email system.

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Google Workplace

Google Workplace offers enterprise-level security and granular control for its applications and data. Based on Google’s BeyondCorp security model, its infrastructure resources can be accessed from almost any device. Administrators can enforce access policies for any device that may access corporate data. They can also remotely wipe corporate accounts on mobile devices and sign out users from desktop devices. It allows them to limit access to sensitive information and prevent malicious activity.

The infrastructure of Google Workplace automatically encrypts all RPC traffic with hardware offload. The typical Google Workplace service is written to perform a task for the end-user. Gmail, for example, can store emails and interact with other services within the infrastructure. For example, Gmail might call the People API to access the user’s address book. By default, Google Workplace automatically encrypts all RPC traffic between Gmail and the rest of the infrastructure.