sorry for the previous post in french... it's because I was asking this question on many french forums... I didn't notice...
so that's the point :
I must send emails outside using a php function, but the host from which I send emails (HTTP server) is not the mail server. What is necessary to make a client connexion from one host to the mail server (sort of relay).
Any idea ?
Situation: Email server IP 192.168.0.5 in DMZ, HTTP Server IP is 192.168.0.8 in DMZ also
I can't use postfix "host relay" as I'm on a DMZ

Thanks