We are currently in the process of migrating the mail server to new hardware and a newer version (from Exchange 2010 to Exchange 2016).
Therefore you will experience a new look when you log on to OWA (Outlook Web Access / https://exchange.jacobs-university.de ).
The log in window will look as follows:
As long as your mailbox is not moved to the new mail server, it will look the same as it has for the last years, after successful log on.
If your Mailbox was moved it will look as follows:
There will be no changes for mailclients (e.g. Outlook, Thunderbird, etc.) as all addresses for Pop3, Imap, etc. stay the same (exchange.jacobs-university.de). NOTE the update below!
With Outlook you may receive a pop up which indicates that there were changes made for your account from autodiscover.jacobs-university.de. Please accept these changes by clicking Allow.
Updates to the current state of the migration as of 2017-02-17
The changes didn't work as well as planned (or documented). We are sorry for the inconvenience, delay, and confusion.
On Wednesday evening due to a misconfiguration emails to non-Jacobs email addresses were not being delivered, that was fixed on the same evening, all stuck emails were then sent out immediately.
On Thursday late afternoon, a different "undocumented delayed feature" led to emails to non-Jacobs email addresses not being delivered again, that also was fixed on the same evening, all stuck emails were then sent out immediately.
Some email clients unfortunately do need a reconfiguration to work properly again: if the client uses an Exchange connection to the Exchange server (instead of IMAP/POP/SMTP), and the PC running the client is not member of the JACOBS domain, then the username used for authentication to the server needs to be prepended by "jacobs\" (i.e., would read "jacobs\campusnetusername"). Also, the username needs to be in all lowercase letters. This does not affect IMAP/POP/SMTP or OWA login, only Exchange connections in clients (aka EWS). The documentation at Jacobs Email has been amended accordingly.
Thunderbird clients may see "error 12" errors. These will go away during the next days after we will have done further migration work, or you can contact Service Desk for Faculty and Staff to have this fixed for you immediately, or you can set the parameter "mail.server.default.send_client_info" to disabled. The error itself does not have any effect on sending or retrieving emails.
Sorry again for the inconvenience this migration caused. If issues persist, please contact Service Desk for Faculty and Staff