TelSearch.ch

primedocs provides the TelSearch address provider. The service is provided by http://TelSearch.ch for free. The key for http://tel.search.ch is limited to 1000 addresses per day (here every search hit counts). Only one key is possible per mail address domain. The required key can be obtained on the page telsearch API Key (specify "primedocs" as reason).

<AddressProvider id="D66AA3D8-B184-4AED-BE93-6AA86FA1867E" order="1" active="true">
  <!-- TelSearch api key -->
  <ApiKey>{telsearch API Key}</ApiKey>
</AddressProvider>

Multiple keys can be combined to increase the limit.

<AddressProvider id="D66AA3D8-B184-4AED-BE93-6AA86FA1867E" order="1" active="true">
  <!-- Multiple TelSearch api key -->
  <ApiKey>{telsearch API Key1}</ApiKey>
  <ApiKey>{telsearch API Key2}</ApiKey>
  <ApiKey>{telsearch API Key3}</ApiKey>
  <ApiKey>{telsearch API Key4}</ApiKey>
</AddressProvider>