[imp] admin user and dovecot

Hello, i've read in the backends.php that a master user can be configured for mailbox management. is this the option to enable what is described here for dovecot: http://wiki2.dovecot.org/Authentication/MasterUsers ? or is it something different, because i can't find something in the dove

[imp] How to change from Net_SMTP to Horde_Smtp

after sucessfully install Horde_Smtp and uninstalled Net_SMTP i got an error in my logs when trying to send a message through imp. the error is: [27-Aug-2013 07:53:19 UTC] PHP Fatal error:  Class 'Net_SMTP' not found in /srv/www/xxx.xxx/pear/share/pear/Horde/Mail/Transport/Smtp.php on line 259 i