提交成功但收件箱中没有电子邮件

Question

'我是wordpress的新手。我刚刚创建了一个联系表单页面，用户可以从该页面向所选用户发送电子邮件。当我点击提交按钮发送表单它返回真正的电子邮件发送成功，但当我去检查电子邮件没有什么。请给我一些解决方法的建议 谢谢 这是我的代码：

$to = '' . $receiveremail . '';
$subject = 'test request form';
$headers = "From: " . $from . "\r\n";
$headers .= "Reply-To: " . strip_tags ( $email ) . "\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";
$to = $receiveremail;
//here $to = eamil1,email2,email3.......
//$send = mail ( $to, $subject, $message, $headers );
$send = wp_mail($to, $subject, $message, $headers);