how to send mail using James

Hi All

I am trying to set up James for an organization. I am able to send and recieve mails for only one particular domain(the organization domain) but I am not able to send or recieve mails from any other domain such as yahoo.com or gmail.com. Could anyone help me out.. Please. This is too urgent. Please help me out

thanks

srkp

[355 byte] By [srkpa] at [2007-10-2 2:39:35]