MailGuard is a cloud-based email and web security solution designed to protect users from email-borne threats. It is positioned as a stackable security layer that can be deployed alongside existing email hosting platforms without requiring additional hardware, software licensing, or administrative overhead. The solution targets threats including phishing, spear phishing, malware, spam, ransomware, and business email compromise (BEC). It operates as a filtering layer that intercepts malicious emails before they reach the recipient's network. MailGuard uses proprietary IP threat detection engines that combine heuristic algorithms, machine learning (ML), and generative AI to identify and block emerging threats. The vendor states that its cloud-based architecture allows it to apply threat protection updates globally in near real-time. Deployment is performed via changes to MX records for email filtering and proxy settings for web traffic, allowing implementation within hours. No software installation, patches, or updates are required on the customer side. The product explicitly supports integration with Zimbra and Microsoft Office 365 as email hosting platforms. A free trial is available.