默认情况下的Wordpress是不会给被评论者发送邮件的，只会给网站管理员发送，在主题文件的functions.php中添加这个段代码，即可实现回复评论时给被回复者发送邮件。

手下你要保证你的网站已经配置好了SMTP，接下来在主题文件的functions.php中添加这个段代码

/* comment_mail_notify v1.0 by willin kan. (所有回复都发邮件) */
function comment_mail_notify($comment_id) {
$comment = get_comment($comment_id);
$parent_id = $comment->comment_parent ? $comment->comment_parent : ”;
$spam_confirmed = $comment->comment_approved;
if (($parent_id != ”) && ($spam_confirmed != ‘spam’)) {
$wp_email = ‘no-reply@’ . preg_replace(‘#^www.#’, ”, strtolower($_SERVER[‘SERVER_NAME’])); //e-mail 发出点, no-reply 可改为可用的 e-mail.
$to = trim(get_comment($parent_id)->comment_author_email);
$subject = ‘您在 [‘ . get_option(“blogname”) . ‘] 的留言有了回复’;
$message = ‘
<div style=”background-color:#eef2fa; border:1px solid #d8e3e8; color:#111; padding:0 15px; -moz-border-radius:5px; -webkit-border-radius:5px; -khtml-border-radius:5px;”>
<p>’ . trim(get_comment($parent_id)->comment_author) . ‘, 您好!</p>
<p>您曾在《’ . get_the_title($comment->comment_post_ID) . ‘》的留言:<br />’
. trim(get_comment($parent_id)->comment_content) . ‘</p>
<p>’ . trim($comment->comment_author) . ‘ 给您的回复:<br />’
. trim($comment->comment_content) . ‘<br /></p>
<p>您可以点击 <a href=”‘ . get_permalink($comment->comment_post_ID) . ‘”>查看回复完整內容</a></p>
<p>欢迎再度访问 ‘ . get_option(‘blogname’) . ‘</p>
<p>(此邮件由系统自动发送，请勿回复.)</p>
</div>’;
$from = “From: \”” . get_option(‘blogname’) . “\” <$wp_email>”;
$headers = “$from\nContent-Type: text/html; charset=” . get_option(‘blog_charset’) . “\n”;
wp_mail( $to, $subject, $message, $headers );
}
}
add_action(‘comment_post’, ‘comment_mail_notify’);
// — END —————————————-