Comment 7 for bug 1574653

I just ran into this myself. I also tried re-creating the Exchange mail account in Evolution and and when I click "Fetch URL", it gives me an error message about

Autodiscovery query failed, the reported error was "401 Unauthorized"

Here's the output on the console from running EWSDEBUG=1 evolution and clicking "Fetch URL":

openjdk version "1.8.0_77"
OpenJDK Runtime Environment (build 1.8.0_77-b03)
OpenJDK 64-Bit Server VM (build 25.77-b03, mixed mode)

(evolution:11255): Gtk-CRITICAL **: gtk_notebook_reorder_child: assertion 'list != NULL' failed
Working around libsoup bug with redirect
autodiscover.xml:18: parser error : Opening and ending tag mismatch: link line 13 and head
</head>
      ^
autodiscover.xml:43: parser error : Opening and ending tag mismatch: img line 42 and a
            </a>
                ^
autodiscover.xml:44: parser error : Opening and ending tag mismatch: a line 41 and div
          </div>
                ^
autodiscover.xml:50: parser error : Opening and ending tag mismatch: div line 21 and body
</body>
      ^
autodiscover.xml:51: parser error : Opening and ending tag mismatch: body line 19 and html
autodiscover.xml:51: parser error : Premature end of data in tag link line 12
autodiscover.xml:51: parser error : Premature end of data in tag link line 11
autodiscover.xml:51: parser error : Premature end of data in tag meta line 7
autodiscover.xml:51: parser error : Premature end of data in tag meta line 5
autodiscover.xml:51: parser error : Premature end of data in tag meta line 4
autodiscover.xml:51: parser error : Premature end of data in tag head line 3
autodiscover.xml:51: parser error : Premature end of data in tag html line 2

For the moment, my solution was to downgrade samba by running

dnf downgrade libwbclient --allowerasing

but since the 4.3.6 packages have vanished from the repos, it downgraded all the way back to 4.3.0, which isn't great.