if you're on a Windows server you want the following part filled out
[mail function]
; For Win32 only.
SMTP = mail.someserver.com
smtp_port = 25
; For Win32 only.
;sendmail_from =
[email protected]Put the return email address that you want to use in the from, then the SMTP server that you're supposed to use in there. Might be localhost or a FQDN. Uncomment them, then make sure the UNIX path value that you're looking at is commented out with a semi colon