Customer changed the SMTP provider and the notification email doesn't work on Identity Manager.
The new SMTP provider requires TSL 1.2 version.
The current version of Identity Manager is 14.4 installed on Windows 2019 with Wildfly 15.0.1
Following the techdoc below we enabled the tls for mail server but is not possible to explicit the protocol version 1.2
Release : 14.x
Component : Identity Manager
Standalone-full.xml / Standalone-full-ha.xml can have different configuration parameters.
While some configuration would work with
https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.0/html-single/how_to_configure_server_security/index