How do I block unwanted contacts in Communicator and Outlook 2011 on a Mac? On a Windows computer? Click Here Blocking contacts can be very helpful in preventing the occasional add request... to add you. If it is a user you want to block (maybe an @AOL.com address) you should select:  Block

. Choose Delete Contact if on a Mac. If you are receiving unwanted or harassing messages from an individual, you may also block them by selecting Change Level of Access and choosing Blocked.   AOL/MSN/Yahoo! Contacts: You can now communicate with friends and coworkers