[horde] disable s/mime encryption only

[Andreas Schulze]

Hi,

I like to enable s/mime validation but hide the encryption option in  
compose windows.

I tried in imp/config/conf.local.php

$_prefs['use_smime']['value'] = 0;
$_prefs['smime_verify']['value'] = 1;
$_prefs['smime_verify']['requires'] = '';

but no success.

Reason: I have no addressbook installed/configured. User selecting any  
encryption get this error
S/MIME Error: the method "contacts/getField" is not defined in the  
Horde Registry


On the orgher side I have setup $conf[openssl][cafile] and  
$conf[openssl][path]
in horde/config/conf.php and s/mime validation works fine...

Thanks
Andreas