WordPress MU

Hey.
I was wondering if anyone knew of a tutorial that would show my how to configure SMTP in MU instead of using the mail() function. Anyone know of one?

Not done it myself, but as far as I know you will need to setup SMTP for outbound email. You could use a plugin to override the traditional Mail() approach and connect to an SMTP server instead (Google)

Have a look at:
http://wpmudevorg.wordpress.com/project/SMTP-Mail
http://www.cimatti.it/blog/cimy-wordpress-plugins/cimy-swift-smtp/

and this from our friends over at the WPSU forum:
http://wordpress.org/support/topic/77673?replies=5