The above error is occurring while we sent email from php code my code is
<?php
//if(isset($_POST['submit'])){
$to = "abc@gmail.com"; // this is your Email address
$from = $_POST['email']; // this is the sender's Email address
// $first_name = $_POST['first_name'];
//$last_name = $_POST['last_name'];
$subject = $_POST['subject'];
$subject2 = "Copy of your form submission";
$message = $first_name . " " . $last_name . " wrote the following:" . "\n\n" . $_POST['message'];
$message2 = "Here is a copy of your message " . $first_name . "\n\n" . $_POST['message'];
$headers = "From:" . $from;
$headers2 = "From:" . $to;
mail($to,$subject,$message,$headers);
mail($from,$subject2,$message2,$headers2); // sends a copy of the message to the sender
echo "Mail Sent. Thank you " . $first_name . ", we will contact you shortly.";
// You can also use header('Location: thank_you.php'); to redirect to another page.
// You cannot use header and echo together. It's one or the other.
//}
?>
it is refered from this stackoverflow link
the error is as Follows:
Warning: mail(): SMTP server response: 550 No such user here in D:\InetPub\vhosts\aaa.com\httpdocs\sendform.php on line 15
Warning: mail(): SMTP server response: 550 No such user here in D:\InetPub\vhosts\aaa.com\httpdocs\sendform.php on line 16