daveespo/Viewpoint — comment on commit 6753c9bd8f2cc368ad814d620efa292934bffc7f
File:  line 0
By zenchild:

I successfully use NTLM against Exchange 2007 all the time. That said, there are some issues with the default NTLM gem that have been fixed in this version: https://github.com/wimm/rubyntlm.git. It has to do with the domain returned from the server. Give that ntlm gem a try and see if it works for you.