confirmation for gmail.com works ok but for
yahoo.com it gives me this error:
Code:
Warning: mail() [function.mail]: SMTP server response: 550 Invalid recipient: dr.aldomoro@yahoo.com in F:\xampp\htdocs\takesignup.php on line 137
Warning: Cannot modify header information - headers already sent by (output started at F:\xampp\htdocs\takesignup.php:137) in F:\xampp\htdocs\takesignup.php on line 141