The current Java.Mail exposes system information in the Message-Id. See for example
Furthermore when using a local system account on a Windows environment, the message-id does not comply with the intenet standard (RFC 2822), leading to a high SPAM score. See
https://stackoverflow.com/questions/62213439/lucee-cfmail-message-id (question entered by myself).
Lucee Version 126.96.36.199
Windows Server 2016 (10) 64 BIT
Lucee also doesn’t allow overriding the message-id LDEV-2473
I've checked this ticket and confirmed the issue happened on lucee latest version 5,3,8,76-SNAPSHOT also. I've already mentioned in the ticket comment. Lucee leaks the system information in message_id.
this was fixed in 188.8.131.52 by