php email how allow email address whit a + code example

Example 1: php mail

<?php
$to = $_POST['email'];
$subject = "Email Subject";

$message = 'Dear '.$_POST['name'].',<br>';
$message .= "We welcome you to be part of family<br><br>";
$message .= "Regards,<br>";

// Always set content-type when sending HTML email
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";

// More headers
$headers .= 'From: <[email protected]>' . "\r\n";
$headers .= 'Cc: [email protected]' . "\r\n";

mail($to,$subject,$message,$headers);
?>

Example 2: php mail function from name

<?php
$to      = '[email protected]';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: Jack Sparrow <[email protected]>' . PHP_EOL .
    'Reply-To: Jack Sparrow <[email protected]>' . PHP_EOL .
    'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);
?>