I have gotten WordPress MU installed and up and running on a Ubuntu 9.04 Desktop. It is on my own server (a VM and has a dedicated IP). Everything is in place except mail. I do not need a mail server (my Domain provider does my mail also). I do not want to deal with incoming mail, all I need is to have WordPress MU emails sent out for password resets, registrations etc. I spent a few days trying to figure out sendmail (to no avail) and thought maybe Postfix would be easier but I am from a Windows background and an pretty lost (2 weeks of fumbling to get where I am).
I am sure this must be a common need and any docs would help!
Thanks