Time: Oct 31st, 2016, since 8 a.m.
Affected: new users
Impact: incoming emails can't be delivered
Due to a malfunction of the Identity Management, some LDAP attributes of users that were created since October 31st (about 180) are not set.
Emails received from outside organizations can’t be delivered to these mailboxes and are rejected. Outgoing and internal emails are not affected.
[Update 11/04, 10:45pm] We have changed the configuration of the exim-mailer for the affected users – incoming mails are now delivered to the mailboxes.