Need to modify the maximum size of incoming messages for 100 users in Exchange? Well AdModify is your friend. AdModify lets you search for certain type of users using LDAP query in Actice Directory, and change their attributes. Just download either version (the.NET version obviously requires you to have .NET framework installed on the source and target server), unzip, and double click admodify.exe to start the program
To begin, select “Modify Existing User’s Attributes”, and press next. Select one of the domain controller from the dropdown list
Select the OU that contains the targeted objects. Also check the “Traverse subcontainers when enumerating users” option. Press the advance button to enter the LDAP query.
A new window will pop-up, type the query. In my case, I want to select all users with Manager in their AD account description, so the query should look like this:
press OK to submit the query.
Press the Add to List button to start the query and list the result on the right pane. Examine wether the result of the query matches your expectation, press the select All button, and then, press the Next button to go to the “Modify active directory users” window
Find the attributes that you wish to change from the tabs. You can change several Exchange related attributes from the “Exchange General” and “Exchange General Continued” tabs. In My case, I’m changing the maximum size of inbound message. Press the Change button to start the modification.