config.inc.php.dist

<?php

// matches TKTAuthSecret
$rcmail_config['auth_tkt_secret_key'] = ' ... ';

// matches TKTAuthBackArgName (optional)
$rcmail_config['auth_tkt_back_arg'] = 'auth_tkt_back';

// matches TKTAuthToken
$rcmail_config['auth_tkt_tokens'] = 'dspam';

// additional data to place in cookie (optional)
$rcmail_config['auth_tkt_data'] = 'citrus!';

?>