When I am looking at one of our test environment, I am not seeing what you have explained in this article. I see the objectGUID of Users Domain matches with resources domain and msExchMasterAccountSid of Users Domain matches wtih resources domain.
Any ideas?
ObjectSID
(resources.com)
01 05 00 00 00 00 00 05 15 00 00 00 52 AC 43 D4 FF DA 65 98 6D 87 02 2F 6B 04 00 00
(users.com)
01 05 00 00 00 00 00 05 15 00 00 00 52 AC 43 D4 FF DA 65 98 6D 87 02 2F 6B 04 00 00
msExchMasterAccountSid
(resources.com)
01 05 00 00 00 00 00 05 15 00 00 00 FB 5D C4 D6 3F 7B CA 3E DC 18 FB F0 56 04 00 00
(users.com)
01 05 00 00 00 00 00 05 15 00 00 00 FB 5D C4 D6 3F 7B CA 3E DC 18 FB F0 56 04 00 00