What Postfix TLS support does for you?
Transport Layer Security (TLS, formerly called SSL) provides certificate-based authentication and encrypted email sessions. An encrypted session protects the information that is transmitted with SMTP mail or with SASL authentication. Ericsson External Forge uses postfix for the Lists and Trackers services.
Please note that in Q4, Ericsson External Forge will be renamed External OpenALM. As such the URL will be changed to openalm.ericsson.net. If you have any integrations that depend on the URL you will need to update them. Further details will be sent in the coming weeks with more detailed dates