Add a field in Contact Form 7. In the form, insert [favorite_posts post_titles] In the email content, use [post_titles] In functions.php, add_action( ‘wpcf7_init’, ‘custom_add_form_tag_form_seminars’ ); function custom_add_form_tag_form_seminars() { wpcf7_add_form_tag( ‘favorite_posts’, ‘your_form_shortcode’, array(‘name-attr’ => true) ); // “form_seminars” is the type of the form-tag } function your_form_shortcode( $tag ) { if (!is_object($tag)) return ”; $name = $tag->{‘name’}; if (empty($name)) return ”; ob_start(); $args = array(‘post_type’ => ‘post’, ‘numberposts’ => -1 ); $the_query = new WP_Query( $args ); if ( $the_query->have_posts() ) { ?> <table class=”table table-bordered”> <?php while ( $the_query->have_posts() ) { $the_query->the_post(); ?> <tr> <td style=”width:40px;”> <input type=”checkbox” id=”hoge_<?php the_ID(); ?>” name=”<?php echo $name; ?>[]” class=”wpcf7-form-control” value=”<?php echo esc_attr( get_the_title() […]