I have an ADFS implementation that does not provide the UPN claim, as is custom, but only passes the e-mail address. Can I connect my on-prem CRM system to that?
Background: https://technet.microsoft.com/en-us/library/gg188600(v=crm.7).aspx specifies that I should configure pass-through UPN. So my question is: can I specify a different unique claim (like e-mail address) and have CRM authenticate the user based on that claim?