A client of ours bought Pro license for the developement inside our domain, but i'm unable to make the license work. I've installed Courier package and copied the license to /bin folder of the Umbraco installation.

I've added server entries in the .config file of the Courier like so:

<servers>
    <server addToContextMenu="true" alias="Development">devmachine.mydomain.com</server>
  </servers>
  <security>
    <!-- Connectivity -->
    <allowedServerIps>
      <!-- to allow all servers add an ip element with an asterik ("*") -->
      <ip>*</ip>
    </allowedServerIps>
    <allowedClientIps>
      <!-- to allow all clients add an ip element with an asterik ("*") -->
      <ip>*</ip>
    </allowedClientIps>

    <!-- a list of users (add them using their id) that are allowed to initiate transfer -->
    <allowedUsers>
      <!-- to allow all servers add a user element with an asterik ("*") -->
      <user>0</user>
    </allowedUsers>

It does show in the context menu, but when I try to transfer content an error is shown that states that my license is not valid or not copied to the bin folder.

is there a naming scheme that i should follow (like domain.lic) or it is sufficient to have the .lic extension?