Using LDP to search active directory

To confirm the Base DN, use the LDP Search option.

In LDP, choose Browse -> Search.
Use the Sub-tree Scope for all searches.
Leave the BASE DN entry untouched and enter the following Filter:
```
(&(objectClass=msExchExchangeServer)(cn=<serverShortName>))
```
where <serverShortName> is the name before the dot (.) of a fully qualified domain name
The filtered attributes of interest are: legacyExchangeDN and serialNumber
If the filter in the previous step does not result in what you need, try the following Filter:
```
(&(objectClass=msExchExchangeServer)(cn=<serverName>))
```
where <serverName> is the fully qualified domain name of the server
A Group search will display the DN.
```
(objectClass=msExchStorageGroup)
```
A Stores search will display the DN.
```
(objectClass=msExchMDB)
```