Mail Authentication to server failed

HI all. I can't really figure this out. For some odd reason, I can't authenticate to the server. I always get the following error: "unable to authenticate to smtp server" So, I have the params[] array set and I have tried logging in to the webmail with the username and password I have supplied into the script. Unfortunately I log in when going through the web I get in, but the script can't log in. I was assured that PEAR would automatically read what encryption is used for the password, but still I can't seem to get it to work. Any ideas how to actually get the authentication to work, or better yet do a more detailed error report? ~Brett