How to move deleted messages in Trash automatically instead of marking them as deleted in Horde?
Mails cannot be deleted in Horde, they are marked as deleted in Inbox.
Add "Trash" options in
/etc/psa-webmail/horde/imp/prefs.local.php as it is shown below:
# cat /etc/psa-webmail/horde/imp/prefs.local.php
$_prefs['subscribe']['value'] = 0;
//Move deleted messages to a trash instead of marking them as deleted
$_prefs['use_trash']['value'] = 1;
// display the 'Empty Trash' link
$_prefs['empty_trash_menu']['value'] = 1;