Cannot communicate via lync to Skype users

By | 28 April, 2014

If you want to communicate with skype users through your Lync software. For example you get the error message
This message wasn’t sent because doesn’t have permissions on your organization’s network, or because the address is incorrect. Please contact your support team.
There are a few things that you should check (or change).

  1. First of all you should check if ‘external communication’ is allowed in your company portal
    [lync administration – organisation – external communication]
    Please note that if this was not enabled and you are enabling it now it can take up to 72 hours to be in effect.
  2. If the skype person you want to communicate with doesn’t have skype registered with a microsoft account (i.e. one that does not end in,,, or, you should add the person’s IM Address as follows:
    So, for a person with the following email address: you should enter it as john.doe(
    Let the skype user login and send some chats.

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