CDO - local vs. external

Hi,

I've been having a tough time getting my CDO.Message to work right on my ASP application.We're running IIS5 on Win2k, have setup the SMTP on the IIS, and I can get the emails to go out to external mail hosts but can't seem to get the email to go out locally. The emails I try to send to our company email accounts just sit in the queque. Can anyone give me some pointers?

Thanks,
JAMS