Based on our record, Azure Firewall seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
The voluntarily admit the following limitations on the page you linked: • ExpressRoute gateways CAN be used for IPv4-only traffic in a VNET with IPv6 enabled. Support for IPv6 traffic is on our roadmap. • VPN gateways CANNOT be used in a VNET with IPv6 enabled, either directly or peered with "UseRemoteGateway". • The Azure platform (AKS, etc.) does not support IPv6 communication for Containers. • IPv6-only Virtual... - Source: Hacker News / almost 3 years ago
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Barracuda Email Security Gateway - Barracuda's Email Security Gateway is a powerful antivirus filter specifically designed to identify and eliminate email-borne threats, stopping hazards before they reach the network.
Palo Alto Next-Generation Firewall - Palo Alto Networks next-generation firewalls are architected to safely enable applications and prevent modern threats.
Proofpoint Email Security and Protection - Learn about Proofpoint's email security solutions that protect organizations against threats such as email fraud, phishing, spam, bulk email, and viruses.
Comodo Firewall - Comodo Firewall Pro - Secure your system against internal attacks such as Trojan viruses /...
Cisco Email Security - Cisco Email Security protects against ransomware, business email compromise, spoofing, and phishing.