Good Afternoon. I just installed XAMPP and am running Mercury. I did the test through the XAMPP control panel and it worked just fine but when i try to use the form : http://188.8.131.52/contact.php , I get the following error
Warning: mail() [function.mail]: SMTP server response: 553 We do not relay non-local mail, sorry. in C:\xampp\htdocs\form_contact.php on line 142
Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\form_contact.php:142) in C:\xampp\htdocs\form_contact.php on line 185
can someone please help?