Hello Community,
Overview
This article provides information about the issue of emails being rejected as server configuration errors after upgrading the SEA to the 4.5.3.4 version.
This applies to the following Sophos product(s) and version(s)
Sophos Email Appliance (SEA) v4.5.3.4
Impact
Emails stop working after upgrading the SEA to the 4.5.3.4 version
Current Status
DEV is verifying the reason for the failure and working on a fix
Work Around
1. Disable Port 25
In Configuration> Policy > SMTP Authentication > Port, check with disable Port 25 only. If it doesn't help, then try a second workaround.
2. Disable the SMTP authentication
- Path: Configuration > Policy > SMTP Authentication.
