jar won't send email

Hi guys,I just wrote a nice jar to send sms with,it uses the javax.mail. package and it is working fine in my idehowever from the jar it won't work,do i need to sign it first?
[211 byte] By [dukeofliona] at [2007-11-26 16:15:40]
# 1
No. Guessing at solutions is not helpful. Before you do anything, you need to find out WHY it won't work. To do that you would look at error messages and other symptoms of the problem.
DrClapa at 2007-7-8 22:38:36 > top of Java-index,Enterprise & Remote Computing,Enterprise Technologies...
# 2
What does "from the jar it won't work" mean?How are you trying to run it? What error are you getting?Have you set your CLASSPATH so that it finds the mail.jarand activation.jar files?
bshannona at 2007-7-8 22:38:36 > top of Java-index,Enterprise & Remote Computing,Enterprise Technologies...