I try to send email from my program to user.
here code:
public function send_mail(){
     $to = "mail@ymail.com";
     $subject = "This is subject";
     $message = "<b>This is HTML message.</b>";
     $message .= "<h1>This is headline.</h1>";
     $header = "From:abc@somedomain.com \r\n";
     $header = "Cc:afgh@somedomain.com \r\n";
     $header .= "MIME-Version: 1.0\r\n";
     $header .= "Content-type: text/html\r\n";
     $retval = mail ($to,$subject,$message,$header);
     if( $retval == true )
     {
        echo "Message sent successfully...";
     }
     else
     {
        echo "Message could not be sent...";
     }
}
the message always say message send successfully, but never sent into my inbox. please some one can help me to solve this?
 
     
    