BuddyPress.org

Buddypress Plain text mail compatibility with WP HTML Mail.

You can add the following code in your bp-custom.php file.

Location: wp-content/plugins/bp-custom.php if file is not there than you can create the bp-custom.php file and add the below code.

add_filter('bp_email_use_wp_mail', '__return_true');

add_filter( 'wp_mail_content_type', 'chavod_use_html_wp_mail' );

function chavod_use_html_wp_mail() {
    return 'text/html';
}
add_filter( 'bp_email_get_content_plaintext', 'chavod_get_bp_email_content_plaintext', 10, 4 );
function chavod_get_bp_email_content_plaintext( $content = '', $property = 'content_plaintext', $transform = 'replace-tokens', $bp_email ) {
    if ( ! did_action( 'bp_send_email' ) ) {
        return $content;
    }
    return $bp_email->get_template( 'add-content' );
}