sendmail problems

[Gary van Blerk]

Hi,   I am running sendmail and the problem I have is I can send mail from the server but when I try send from a workstation it says "Undeliverable - no transport provider to deliver messages to one or more recipients [EMAIL PROTECTED]" My server can send and recieve mail fine but when a workstation tries to send it to any non-local address this message pops up. Has anyone ever had this problem?   Many thanks Gary