Secure email gateways work by scanning every email for viruses. Organizations receive an estimated 1% of all emails with a virus attached. To protect your organization, you must continually update your security solutions to stay ahead of the latest threats. Secure email gateways have to be updated with the newest threat patterns. This article will cover some basics of secure email gateways definition & comparison | Fortinet.
DMZ
A Secure Email Gateway (SEG) encrypts emails and provides a range of features for securing your email. TLS 1.1.2 are required on the email server. Once installed, SEGs support custom policy creation and are best installed in a Demilitarized Zone (DMZ). However, they can also be installed behind a reverse proxy server if you are unsure where to install your gateway.
In addition to securing your emails, a DMZ also provides network segmentation and control for a business. It enables you to restrict remote access to internal resources and servers. This strategy is helpful for individuals and large organizations. Companies use DMZs to separate their internet-facing resources from their internal network. This strategy helps keep them separate and protected from external attacks and intrusion. It also makes auditing incoming and outgoing traffic easier while maintaining complete control of the DMZ’s functionality.
A DMZ is a network that separates sensitive information on a company’s server from the public. Some companies are legally required to use this network. While there are benefits to this configuration, it is often more expensive than using one-way security. Therefore, it is recommended that you use a single-level firewall for your DMZ. But make sure you have the proper protection for your business needs.
URL rewriting
Secure email gateway services use URL rewriting to protect against spam and phishing. However, while URL rewriting protects against known threats, it is only effective against known zero-day threats. Using URL rewriting, threat actors can evade detection by registering new domains or hijacking existing trusted domains. The security solution can then analyze these links and detect those that lead to malicious websites or login pages.
One of the problems with email security solutions is that they often rely on URL rewriting to detect malicious links. Although this might seem an excellent way to protect your network, it can give users a false sense of security. For example, many users may believe any URL marked ‘Safe’ is safe and click on it. Unfortunately, this method can result in users clicking on malicious links. As a result, it is essential to use a secure email gateway.
Time-of-click analysis
An Email Security Solution must do more than protect your inbox. A Secure Email Gateway also protects your links. This solution rewrites links in email messages and analyzes time-of-click analysis to block malicious links. This technology does not protect against outbound links, but it does protect against internal links. Inbound links that redirect to malicious sites are just as risky as external ones. To combat this problem, you must know how to protect your emails from malicious links.
Besides encrypting your messages, your Secure Email Gateway should provide DLP and encryption capabilities. These two technologies can be used separately or together. To protect your users from threats, you need to offer them the ability to choose between encryption or DLP. In addition, an inspection engine is a valuable tool to block outbound messages. It also helps you detect potential threats not seen by other security solutions. Combining these two features is a powerful solution for your email security.
Threat feeds
A Secure email gateway can work with threat feeds. Threat feeds can be configured in the email gateway using a CLI command. You can access the ETF engine from the Security Services page in the web interface. Click on the link next to a threat feed to see its details. The ETF engine provides a table containing the alert’s name, description, and severity. It is also necessary to enable the Message Tracking feature in the email gateway.
STIX is a standard industry-defined structured language used for cyber-threat intelligence. This means that threat feeds come from trusted sources, like Microsoft, CERT, and the FBI. These threat feeds contain patterns and can help detect malicious IP addresses. Using Threat Response, you can configure the gateway to respond to damaging emails. It is also popular among security professionals, as it offers comprehensive cyber threat intelligence.