Microsoft's discontinuation of support for TLS 1.0 and 1.1. will affect older versions of Sage100. This protocol is used for encryption during the Sage 100 email process. - Friendly Systems
Sage 200 essential information - TLS and unsupported versions
Sage Will Require the Use of TLS 1.2 as of September 2023
Sage 100 Umstellung Sage-Lizenz-Service auf TLS 1.2 - YouTube