Hello, Why is mail.jar and activation.jar added in Tomcat 4.1.29 in common/lib? My webapp uses it's own mail.jar (1.3.1 in stead of 1.2) and activation.jar and everything doesn't work anymore. I think this is a major 'API' change for a minor release. For what are these api's used by Tomcat? I can't think of anything that a webserver does with mail. Greetings, Ronald.