07. March 2023 – Alexander Winterstein Generell

Exchange changeover on 09.03.

We completed the Exchange switchover this week Thursday around 10:30am. At that time, the new Exchange server will go live and receive all new incoming emails. No more emails will be delivered on the old Exchange server after that.

Delivery/retrieval of e-mails

As soon as the changeover is complete, new e-mails will only be delivered on the new Exchange server. Login will be via the newly set central password. You will still find your old e-mails on the old Exchange server. Login is done with the old central password.

Sending e-mails

After the changeover, please only send e-mails from the new Exchange server.

Background: Sending from the old Exchange server also works in principle. However, if an e-mail is sent to another internal Exchange user, it will be delivered directly to the old Exchange server.

Migration of the old mailboxes

The migration of all old emails to the new Exchange server will take several weeks. This is a two-step process. First, all emails delivered by 02.02.2023 will be migrated. The second step will be all emails delivered after that until the migration. As soon as the migration process has been successfully completed for your account, you will receive a corresponding notification by e-mail.

Exchange server accessibility

Until further notice, you can only reach the new and the old Exchange server internally, i.e. in the isolation network or in the “clean” network.

Access from outside (external) will only be possible again once two-factor authentication has been implemented.

Sometimes there may be complications with using the Outlook client after the changeover. Our recommendation is to initially only retrieve e-mails browser-based via Webowa.

Further hints

If you have created filter rules, please check them after the changeover. Sometimes some rules have to be created again.

We do not recommend creating the same calendars/appointments in the new Exchange as in the old one, otherwise they will be duplicated after the migration.