Note this, PHP.ini Mail Settings guide, is for users who has an email that is using the MS Office Outlook Email on their dev PC.
Open your PHP.ini and look for the following line of code:
;For Win32 only.
SMTP = <put here the SMTP server address of your email>
;SMTP = localhost
smtp_port = <port of your smtp server>
;smtp_port = 25
; For Win32 only.
sendmail_from = <put your email address here>
;sendmail_from = firstname.lastname@example.org