AntiVirus

The IceWarp antivirus engine can scan incoming and outgoing messages for viruses during SMTP transmission.

We implement only the best security solutions into our services:

• Up to version 10.1.2 the award-winning antivirus engine from Avast

• Up to version 13.0.3.x either Avast or Kaspersky antivirus (depending on the license type)

• For later versions and Epos, we use Sophos antivirus

Sophos antivirus

Sophos Group plc is a British-based security software and hardware company. Sophos endpoint security stops ransomware, phishing, and advanced malware attacks in their tracks. Sophos combines the industry's leading malware detection and exploit protection with extended detection and response (XDR) to secure your entire ecosystem.

Firewall Settings

Some servers (systems) block the outgoing HTTP. Sophos antivirus service needs to have Firewall opened for outgoing HTTP. Go to your Firewall settings and open port 443 for the link https://sophos.icewarp.com.

For Avast and Kaspersky antiviruses, it can be done in the <install_dir> /sophos/setup/servers.def file for Avast and <install_dir>\kaspersky\kaspersky\bin\Bases\updcfg.xml for Kaspersky. Make sure the hosts in the files mentioned above can be reached via port 80 outbound (you can do a telnet to test it).