I need to send mail via PHP, but I get an error. Help me!

[tobiah]

I recently bought a product called "1-2-3 music store". And this webshop needs to send mail via PHP but it doesn't work. I got a test script and when I try to send an email I get this "SMTP server response: 553 We do not relay non-local mail, sorry."

Please help me if you know what is causing this problem.

Best regards,
Tobiah

[taustin]

Where are you sending email through? Are you using the Mercury that comes with Xampp, or sending through your ISP's mail server?