在某个动作之后，从Wordpress发送电子邮件的最佳方式是什么。

我在一个网站上工作，用户可以提交想法，然后其他用户可以对其发表评论。

我想在发帖和发表评论时，向多个不同的地址（版主）发送电子邮件。

我有这个代码来添加帖子，试图发送一封不起作用的电子邮件。

<section class="submitForm">

    <h1>Submit idea</h1>

    <?php

    if(isset($_POST[\'new_post\']) == \'1\'){

        $post_title = $_POST[\'post_title\'];
        $post_content = $_POST[\'content\'];

        $new_post = array(
            \'ID\' => \'\',
            \'post-author\' => $user->ID,
            \'post_title\' => $post_title,
            \'post_content\' => $post_content,
            \'post_status\' => \'publish\'
            );

        $post_id = wp_insert_post($new_post);
        $post = get_post($post_id);
        wp_redirect($post->guid);
        exit;

        // send email notifications


        wp_mail( \'[email protected]\', \'New Idea\', $post_content);
    }

    echo \'<form method="post" action="" >\';
    echo \'<label for="idea_title">Idea Title</label>\';
    echo \'<input type="text" name="post_title" class="title">\';

    $settings = array(
        \'quicktags\' => false,
        \'textarea_name\' => \'content\',
        \'media_buttons\' => true,
        \'textarea_rows\' => 12,
        \'tinymce\' => array(
            \'theme_advanced_buttons1\' => \'formatselect,|,bold,italic,underline,|,\' .
            \'bullist,blockquote,|,justifyleft,justifycenter\' .
            \',justifyright,justifyfull,|,link,unlink,|\' .
            \',spellchecker\'
            )
        );
    wp_editor( \'\', \'content\', $settings );

    echo \'<input type="hidden" name="new_post" value="1">\';
    echo \'<input type="submit" class="submit" value="Submit Idea">\';
    ?>

</section>