Portal entries can be restricted to be shown only if a user is logged in and member of a group. In UCS 4.4 errata 142 this works only if the user uses the "uid" as login, not if the mail address (mailPrimaryAddress) has been used. If the user enters the mail address and logs in, only entries visible to all users are shown.
I expect this to be a problem for many O365 scenarios.
Patch is part of git branch fbest/49526-portal-entry-changes.
Fixed in the UMC-Webserver which just accessed the wrong dict-key. univention-management-console (11.0.4-22) 1cc2ef775c4b | Bug #49619: fix displaying of portal entries when logged in via email address
OK, works
<http://errata.software-univention.de/ucs/4.4/175.html>