I came across an HCL Domino environment with HCL Sametime where the Sametime embedded clients were logging in via LTPA but with a different authentication server than the Sametime Community server.
As you can imagine, this was important to keep in mind during a Sametime migration. The Domino server used for authenticating Sametime clients is also hosting multiple websites and using multiple LTPA tokens, so the question was, which LTPA token is actually used for authenticating the Sametime clients.
This is a companion discussion topic for the original entry at https://milanmatejic.wordpress.com/2020/10/19/hcl-domino-default-ltpa-token/