ADFS 2 as Shib Proxy

[Peter Schober]

* Young, Darren <Darren.Young at chicagobooth.edu> [2017-08-31 21:22]:
> I¹m attempting to insert our ADFS 2 instance in between the campus Shib
> IDP and Dropbox in order to translate campus emails to local school ones
> (they use different email domains)

If your "ADFS 2" knows the correct addresses why not get those
addresses into the campus Shib IDP? Or what's the underlying issue
with local schools using different email addresses (something
preventing the campus IDP from asserting those)?
-peter