Help w/ sendmail & apache

[Cooky]

hello all,
I have configured my Apache web server to work with CGI script so that after the user presses "Submit" on my web page, an email will be sent to me.

Setup:
Fedora2 w/ Apache and sendmail on the same server.

Facts:
The CGI script works - I put the same webpage and script on the school server and it worked.
Sendmail works - I can send out email from a Windows PC in the same LAN through the server. However, when Apache attempts to send out the email generated by the CGI script, the mail cannot be sent.

Could anyone please tell me how I can get this fixed??
Thank you!

Edit1:Here's the error in the maillog

 

[n0cmonkey]

Are there any errors in the logs?

 

[Cooky]

Thanks for the quick response.
Please see the original post for error log.

I noticed at the end of certain lines it reads: stat=User unknown.
What does that mean? Is that a complaint from my server or my ISP's smtp server?

 

[n0cmonkey]

To me it looks like there needs to be some authentication going on, but I don't know for sure.

 

[Nothinman]

What does that mean? Is that a complaint from my server or my ISP's smtp server?

From your ISP's mail server. It tried to send the mail to 218Morewood@comcast.net