title: Basic and NTLM Authentications on EWS
body: <p>Is it possible to use both Basic and NTLM Authentications on EWS? </p>
  
  <p>I have read here 
  <a href="https://msdn.microsoft.com/en-us/library/office/dn626019(v=exchg.150).aspx#sectionSection2" rel="nofollow">https://msdn.microsoft.com/en-us/library/office/dn626019(v=exchg.150).aspx#sectionSection2</a> </p>
  
  <p>that it is not possible. Not that I am questioning msdn, but does not looks so, because I have option in exchange configuration to check both windows authentication and basic along each other. From that point it does not look that basic excludes NTLM.</p>