You can change the SMTP settings in your php.ini file with the settings you also use to set up Outlook or another emailprogram.
See the lines:
; For Win32 only.
SMTP = mail.provider.com
smtp_port = 25
; For Win32 only.
sendmail_from = your@email.com
And remove the semicolumn (; ) in front of the line:
extension=php_smtp.dll
This worked for me, since I also did not have a mailserver.