Even after setting mail.subject.prefix to a custom value the email subject still starts with [jtrac]
Please give more details of the version you use. In the current version (2.2.0-05dev) the feature works fine.
In version 2.1.0 it works fine.
Just use [Test] for example.
Currently I am using version 2.1.0. Now I've noticed, that it works, but only after restarting Tomcat.
is that an issue?
worked in the current version.