1. Open Communications Server Control Panel.

2. In the left navigation bar, click IM and Presence.

3. On the File Filter page, click New.

4. In the Select a Site dialog box, click the site for which you want to create the file transfer filter, and then click OK.

   Tip:
   If the site for which you want to configure a file transfer filter is not listed, you can search for the site by typing the name or display name of the site and then pressing ENTER.

5. In the New File Filter dialog box, click the Enable file filter check box.

6. In the File transfer drop-down list box, click Block All or Block specific file types.

7. If you clicked Block All, skip to step 9.

8. If you clicked Block specific file types, do the following:

   1. Click Select to modify the default list of file type extensions that you want to block.
      
      
   2. In the Select File Type dialog box, select the file types that you want to block or allow by adding or removing their extensions from the categories under File type extensions.
      
      
   3. If you do not see the extension for a file type that you want to block, type the extension in the text box under Add new file extensions to the list, and then click Add.
      
      
   4. Click OK.
      
      

9. Click Commit.

Tasks

Concepts