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JanDoggen2's avatar
JanDoggen2
Occasional Contributor
8 years ago
Solved

SOAPUI 5.3.0 calls to online Exchange Web Services fail with 401 Unauthorized

I can no longer login to online Exchange Web Services using SOAPUI after updating from 5.2.1 to 5.3.0 All calls fail with a "HTTP/1.1 401 Unauthorized" error What has not changed: - The SOAPUI...
  • JanDoggen2's avatar
    JanDoggen2
    8 years ago

    The trick was changing the changing the Authentication type to Basic:



    Why this is, I have no idea. Earlier Exchange versions still work with NTLM authentication.
    As suggested in my question, it looks as if something changed with Exchange Online in the same period that I upgraded SOAPUI.

    The MS article Authentication and EWS in Exchange dated 9. March 2015:

    - says that NTLM is for *Exchange on-premises only* - which definitely was not true during the larger parts of 2015 and 2016, when I used SOAPUI with the NTLM setting;
    - suggests that I stop using Basic as well, but for now it's a solution.

JanDoggen2's avatar
JanDoggen2
Occasional Contributor
8 years ago

The trick was changing the changing the Authentication type to Basic:



Why this is, I have no idea. Earlier Exchange versions still work with NTLM authentication.
As suggested in my question, it looks as if something changed with Exchange Online in the same period that I upgraded SOAPUI.

The MS article Authentication and EWS in Exchange dated 9. March 2015:

- says that NTLM is for *Exchange on-premises only* - which definitely was not true during the larger parts of 2015 and 2016, when I used SOAPUI with the NTLM setting;
- suggests that I stop using Basic as well, but for now it's a solution.