Add Delete Or Block Contact From Lync. From the drop-down menu click Add a Contact Thats in my Organization. For a contact search walkthrough see Walkthrough.

Then tap the contact you want to block. From a user account that is assigned to the CsUserAdministrator role or the CsAdministrator role log on to any computer in your internal deployment. Delete the Lync Contacts folder in OWA.
To remove a user account by using Lync Server Management Shell.
In the Lync main window go to Add a contact Add a Contact Not in my Organization. Although you can add a MicrosoftLyncModelContact object to the contact list regardless of the origin of the contact it is best to add contacts that publish presence availability. Delete Lync contacts Hello I have the problem that for an outlook contact which is added to a lync group a lync contact will be created with the for me completely useless note when it was added. To add a contact from Phone go to Settings Phone Blocked Contacts scroll to the bottom of the screen then tap Add New.