[Wlug] Sendmail

I have sendmail set up here at work, and everyone can send email fine, except when I try to send using the good old mail command.. it tells me "Can't create transcript file ./xfg4OGa2S21960: Permission denied queueup: cannot create queue temp file ./tfg4OGa2S21960, uid=500: Permission denied" I have tried doing chmod 777 on the "/var/spool/mqueue" and it still fails. However when I use pine and set my smtp server to box.domain.com ( the localhosts name ) I am able to send fine. This problem is preventing a webmail client I wrote from sending mail... Any ideas? Thanks, Joe