PHP sendmail configuration

Ok I know it's off topic, but I've been working on this for over 5 hours now and I almost have it configured, but something is definitely wrong! Basically I can send email using sendmail by this command: echo "Just a test" | mail -s "test" someone@someone.com Now someone@someone.com receives the email, but the From address is murlyn@mail.baskettcase.my and I have no idea where it is getting that address from! Does anyone know how I can change that from address? And what would stop the above command from delivering to certain valid email addresses? This is definitely causing problems with my php server also when trying to send emails... Rick "Only a life lived for others is worth living." - Albert Einstein