en_mail_ml_membership.lng

<?php
$wb['heading_subscription_txt'] = 'Subscription';
$wb['heading_removal_txt'] = 'Removal';

$wb['subscribers_txt'] = 'Members';
$wb['subscribers_desc_txt'] = 'The email addresses subscribed to the list';
$wb['unsubscribers_desc_txt'] = 'The email addresses unsubscribed from the list';

$wb['welcomeMsg_txt'] = 'Welcome message';
$wb['goodbyeMsg_txt'] = 'Goodbye message';