When using our machine account in our own domain to contact other domains we should autodetect the usage of kerberos as we do when contacting our own domain.
Created attachment 12984 [details] Patches for v4-6-test
Created attachment 12985 [details] Patches for v4-5-test
Created attachment 12986 [details] Patches for v4-4-test
Reassigning to Karolin for inclusion in 4.4, 4.5 and 4.6.
Pushed to autobuild-v4-{4,5,6}-test.
(In reply to Stefan Metzmacher from comment #5) Pushed to all branches. Closing out bug report. Thanks!