E-mail server maintenance on Sun 2013-10-06, 21:00-22:00 CEST

On Sunday, 2013-10-06, we are going to increase the disk space of our mail system. Because of that, mail delivery will be delayed between 21:00 and 22:00 CEST. Sending of emails as well as the access to the mailboxes may not be possible during this time.