PHP邮件不发送电子邮件到我的电子邮件地址

我一直在到处寻找，似乎找不到如何使这个工作-它只是不发送电子邮件到我的地址。下面是我的HTML表单:

<form id="contactMe" name="contact" method="post" novalidate="novalidate">
    <fieldset>
        <label for="name" id="name">Name<span class="required">*</span></label>
            <input type="text" name="name" id="name" size="30" value="" required="">
            <label for="email" id="email">Email<span class="required">*</span></label>
            <input type="text" name="email" id="email" size="30" value="" required="">
            <label for="phone" id="phone">Phone</label>
            <input type="text" name="phone" id="phone" size="30" value="">
            <label for="Message" id="message">Message<span class="required">*</span></label>
            <textarea name="message" id="message" required=""></textarea>
            <label for="Answer" id="answerswer">Name the house pet that says “<i>woof</i>“<span class="required">*</span></label>
            <input type="text" name="answerswer" value="" required=""></br>
            <input id="submit" type="submit" name="submit" value="Send">
        </fieldset>
        <div id="success">
            <span class="green textcenter">
            <p>Your message was sent successfully! I will be in touch as soon as I can.</p>
            </span>
        </div> <!-- closes success div -->
        <div id="error">
            <span><p>Something went wrong, try refreshing and submitting the form again.</p></span>
        </div> <!--close error div-->
    </form>

这是我的PHP保存为mail。PHP:

<?php
    $to = "someone@gmail.com";
    $from = $_REQUEST['email'];
    $name = $_REQUEST['name'];
    $headers = "From: $from";
    $subject = "You have a message from your.";
    $fields = array();
    $fields{"name"} = "name";
    $fields{"email"} = "email";
    $fields{"phone"} = "phone";
    $fields{"message"} = "message";
    $body = "Here is what was sent:'n'n"; foreach($fields as $a => $b){   $body .= sprintf("%20s: %s'n",$b,$_REQUEST[$a]); }
    mail("maytee.kneitz@gmail.com",$subject,$message,"From: $from'n");
    echo 'Mail sent';
?>

这是我第一次在邮件/联系表单上工作，所以很抱歉，如果这是一个明显的问题。我就是找不到。任何指导将不胜感激。

我确实有验证在我的脚本(没有张贴在这里)。