I'm completely new to php and I'm trying to setup an online trouble ticket system. After the user logs in and submits the ticket, they're supposed to receive an email confirmation with the ticket number. I have my Exchange server setup on another server in the same domain that I'm trying to use to send these emails - this server requires SMTP authentication. So I've installed the PEAR Mail package, as it was my understanding that this would allow me to do the authentication for the SMTP server - I installed it in the C:\PHP5\PEAR directory. Do I need this mail package for the authentication? In any case, where do I setup the authentication variables to send this email? I tried adding the authentication vars to the smtp.phpfile in the C:\PHP5\PEAR\Mail directory, but still not authenticating. I'm completely lost, any help is greatly appreciated. ; PHP 5.2.5 installed on Windows Server 2003 with IIS 6 ; Mail-1.1.14 mail pkg with Net_SMTP-1.2.11 pkg --Erik