03.05.21: 17.15 Update: the outage is fixed--- Original message: malfunction mail dispatch to the outside.
Update: the problem is fixed: a typo in a configuration file caused the problem, we apologize for the inconvenience.
Original message: Currently there are problems sending mail to external mail addresses with the message: host smtpi.uni-freiburg.de says: 550 Use SMTP AUTH on mail.uni-freiburg.de. Within the university the dispatch is possible.