Javamail and different servers

[Clockwork]

I develop my system on windows, using eclipse.
the resulting servlet is deployed to an offsite tomcat server.

This servlet uses javamail, and that seems to be screwing up, but only on the server. It runs fine on the devlopment machine.

It runs until it gets to the creation of the mimemessage

Message msg = new MimeMessage(session);

At that point, on the server, execution just halts. no errors, nothing, just stops.

I have no idea what would cause this, especially because It works fine on the development machine.

Any help would be greatly appreciated.

Thanks,
Clockwork

[Clockwork]

Got a little further.

It appears that i am getting a class def not found error.
The most common cause of this is that activation.jar is not included,
but i have confirmed that i have one there.

[Norm]

Sounds like a classpath problem on the server.

[Clockwork]

I tried including it in the PATH via the "set" command, but that didn't help.
its in the tomcat libs folder.
Is there another place I can put it or include in some variable to help me get this to work?

Im running CentOS on the server.