AD IT Systems GmbH - Infrastructure Migration: kunden.aditsystems.de – Maintenance details

Dear customers,

We want to inform you about upcoming maintenance work:

• What will happen?

  • Migration of kunden.aditsystems.de to our OpenStack infrastructure

• Why is the maintenance work necessary / What is the benefit of this maintenance work for you?

  • Performance and stability are improved

• When will the work be carried out?

  • On March 26, 2025, between 11:00 and 12:00

• Who is affected?

  • All users of the email server kunden.aditsystems.de

  • All users of the FTP server kunden.aditsystems.de

• How does this affect me?

  • The migration gives the system new IP addresses.

  • No outage is expected: the services will be switched to the new system in parallel operation.

  • No changes are necessary for you.

  • Customers who have set firewall rules must adjust these firewall rules themselves.

    • We advise against setting IP-based firewall rules.

We will notify you when maintenance is completed or if unexpected problems arise that require an extension of the maintenance period.