[imp] installation problem Undefined index

[juan carlos]

Jan Schneider <jan <at> horde.org> writes:

> 
> Zitat von juan carlos <jcflores <at> cablenet.com.pe>:
> 
> 
> You would only see this if you told Horde to authenticate through IMP.  
> And you can only achieve that by editing the configuration file  
> manually. You have to make the configuration through the admin  
> interface, unless you really know what you are doing.
> 
> Jan.
> 

how can i edit the configuration file in order to make the configuration through
the admin interface.