You need to post the jcl you used and all of the diagnostic/information output from the run. When you post jcl and control info, use the "Code" tag on the top of the reply panel. This will preserve alignment and use a fixed font for readability.I have tried sending emails through JCL
You should probably also talk with your system/network admin people and make sure this is permitted on your system - not every system allows sending e-mails. The destination you sent to may also discard incoming e-mail from untrusted sources.