setting exim to authenticate by default

[DigiCrime]

Is there a way to setup exim to ask for a persons username and password when their sending an email by default??? So we can eliminate spamming issues

 

[DigiCrime]

I tried it with out authentication and email still goes through. Even tried using a fake email address but a valid email server and the email still went through. Without some sort of authentication, anyone can use our servers for massive spamming

 

[mind-field]

I seem to be having the same issue on the same server as DigiCrime is, any suggestions?

Thanks!

David