SquirrelMail - Second installation [moved]

Hello.

I have attempted to setup a second installation of SquirrelMail on my reseller account which is using cPanel. However, I managed to setup everything correctly, other than the SMTP settings.

Usually, I would connect to SMTP in outlook express by using mail.trwilliams.net as the smtp server, but this does not work on SquirrelMail.

I thought this may have to do something with the SMTP authentication, so I searched the config file for SMTP authentication, and it gave me several options:

* auth_mech can be either 'none', 'login','plain', 'cram-md5', or 'digest-md5'

I tried 'login' - as SMTP requires authentication, but it doesn't work. I still get this error when trying to send an e-mail:

ERROR:
Connection refused
Server replied: 111 Can't open SMTP stream.

Any help?