hello
im doing a 2013 migration from 2010
moved over some mailboxes set the autodiscover URI to point to the 2013 namespaces. all is well for users on 2013
when i run the test e-mail auto config for a 2010 user the autodiscover doesnt work. for some reason the requests are not proxying back from 2013 to 2010.
can anyone suggest why? ive run out of ideas! everything appears correct