mail() is broken inside codeigniter?

[eluser]Dave332[/eluser]
darkhouse, thanks again for all you help. I found the problem. Apparently, I screwed up get_user_by_username() by testing for a variable that was never passed. I guess that's what I get for using copy/paste to quickly duplicate similar function structures. As a result, I was attempting to access 0['email'] rather than a valid field, hence the failed emails.