Specifies the type of provider.
The following provider types are available:
| Provider Type | Value | 
|---|---|
| Outgoing | outgoing | 
| Database | database | 
| Incoming | incoming | 
| Preview | preview | 
| Ldapuser | ldapuser | 
instance_dir/data/providers/provider_name/provider.hda
Used as a configuration entry:
ProviderType=ldapuser