Mail(): Failed to connect to mailserver

Bonjour,
j'aifairt un programme afin d'envoyer un mail , mais je sais très bien que je dois modifier ma configuration :
Syslog]
; Whether or not to define the various syslog variables (e.g. $LOG_PID,
; $LOG_CRON, etc.). Turning it off is a good idea performance-wise. In
; runtime, you can define these variables by calling define_syslog_variables().
define_syslog_variables = Off

[mail function]
; For Win32 only.
SMTP = smtp............................................................................
; For Win32 only.
sendmail_from = me@localhost.com

; For Unix only. You may supply arguments as well (default: "sendmail -t -i").
;sendmail_path =
j'utilise lewifi de ma fac , donc je sais kel est le fournisseur.
mon erreur c'est la suivante:

Warning: mail(): Failed to connect to mailserver at "smtp.u-picardie.fr" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in c:\program files\easyphp1-8\www\nouveau dossier\mime_mail.class.php on line 70