вот кусок из php.ini который отвечает за отправку мыла:
всё раскоментировано вроде...
[mail function]
; For Win32 only.
SMTP = localhost
smtp_port = 25
sendmail_from =
[email protected]
sendmail_path = c:\temp
; For Win32 only.
;sendmail_from =
[email protected]
; For Unix only. You may supply arguments as well (default: "sendmail -t -i").
;sendmail_path =