Overview Of Sophos Email Appliance Version 4.2.2
The rollout of the Sophos Email Appliance version 4.2.2 has started, this marks first phase in the goal of a single anti-spam engine for all Sophos email solutions. Sophos Email Appliance version 4.2.2 incorporates the latest Sophos Anti-Spam engine as well as improvements to Sophos Delay Queue scanning to improve protection against snowshoe spam.
Full release notes available here
Remarks:
- The release will be staged with the completion of all upgrades expected to take between 2-3 weeks
- User experience and any custom settings will be unaffected by the change
- Systems will not require a reboot following the appliance update
- As well as improvements to Anti-Spam techniques, this release will also include a change to the Email Appliance update process (HTTPS as opposed to HTTP). To ensure the update functionality of the Sophos Email Appliance, please configure your network to allow access on the new ports highlighted below in red:
| Port | Function | Service | Protocol | Connection |
| 80, 443 | Software downloads | HTTP, HTTPS | TCP | [Required] Outbound from appliance to internet |
If you are using a third party web proxy with HTTPS scanning enabled, please exempt the following Sophos URLs from HTTPS scanning. This will prevent any errors when updating the Sophos Email Appliance:
https://sea-dynamic.sophosupd.com
https://sea-dynamic.sophosupd.net
https://swa-dynamic.sophosupd.com
https://swa-dynamic.sophosupd.net
The official Sophos article is available here: https://community.sophos.com/kb/en-us/127433
Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.