Modify the below lines of code found in php.ini & restart your WAMP Server.
[mail function]
; For Win32 only.
; [
php.net]
SMTP = localhost
; [
php.net]
smtp_port = 25
; For Win32 only.
; [
php.net]
sendmail_from = you@yourdomain
; For Unix only. You may supply arguments as well (default: "sendmail -t -i"

.
; [
php.net]
;sendmail_path =
As steve said This can be used for notifications & this is not a mail Server
Founder & Administrator
[
www.infopeer.com]
[
www.zaadu.com]