PHP Email - Mail Server Response - 551 User not Local Cannot Relay

[Saboi]

Hello friends,

I am experiencing a problem with sending email using PHP.

I have Apache, PHP and Argosoft installed on my computer.

The error I get when I try to send an email via a web form is:

Warning: mail(): SMTP server response: 551 User not local. We don't relay in C:\Users\samijo.people\Documents\Programs\USB Webserver\root\index_reply.php on line 14

The code on line 14 is:

 mail($to,$subject,$txt,$headers);

I kindly seek your guidance on how to work around this.

[phranque]

You probably need to edit SmtpServerList.xml so that Argosoft is configured to send the proper SMTP headers:
[argosoft.com...]

[Saboi]

Thank you for the pointer.

I was using an address not registered as $from. I changed it to one registered on the domain and then all worked well.

Thank you once more.

[phranque]

Occam's Razor applied...