I am using the latest version (1.0.0-beta-4) of James I. Armes php-ews code (https://github.com/jamesiarmes/php-ews) to connect to a local Exchange serge (Exchange 2010 SP1). This code connects just fine to Office/365, but it is getting ah 'HTTP 401 Unauthorized' back when it tries to connect to our local Exchange server. I have seen some old entries addressing similar problems, but none with a specific answer. Any suggestions on where to look?
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Are you sure Exchange 2010 supports the same SOAP interface? – MiltoxBeyond Mar 02 '17 at 19:21
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Yes, we have other code talking to this Exchange server over SOAP. It may have something to do with specific versions of curl and/or ntlm? – Serge Goldstein Mar 03 '17 at 19:53
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I remember encountering something similar, where the server that I was using threw a 401 if you the SOAP client was trying to send a combination of CURLAUTH_BASIC and CURLAUTH_NTLM. I remember the solution was to try and find the SoapClient file and changing the CURLOPT_HTTPAUTH option to either CURLAUTH_BASIC, CURLAUTH_BASIC | CURLAUTH_NTLM or CURLAUTH_NTLM until you found the setting that worked for you.
On a side note, I'd recommend you trying my alternative library, garethp/php-ews, as it provides many benefits (including simpler ways to use EWS) and I try to provide support for people on the issues page
Gareth Parker
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