Using J2EE with Tomcat 5.0

[Mann, Jeremy]

I am using the javax.mail package.  In my IDE I use j2ee.jar to compile.
I see that Tomcat does not have j2ee.jar or some equivalent in its
classpath so I am getting a NoClassDefFoundError.  I tried just adding
this jar file to my lib directory but for some reason I am still getting
the same error.
Any Ideas?
Thanks in advance
Jeremy