[Advanced-java] servlet sends mail - war works on one host / not another

[Hanasaki JiJi]

exception is below.. The identical war works on a differnt box.  both
are linux w/ java 1.4.1 and tomcat 4.1.18

javax.mail.NoSuchProviderException: smtp
LocalMsg[smtp]
javax.mail.NoSuchProviderException:
javax.mail.Session.getService(Session.java:611)
javax.mail.Session.getTransport(Session.java:541)
javax.mail.Session.getTransport(Session.java:484)
javax.mail.Session.getTransport(Session.java:464)