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We will keep you posted on @idnt_status about:
Information on the service status of Office 365 services such as Exchange Online (Outlook) or OneDrive can be found here: https://portal.office.com/servicestatus
For information on the service status of Azure services, please visit: https://azure.microsoft.com/de-de/status/
Yammer's service status information can be found at the following address: https://status.yammer.com/
This can be done easily via our helpdesk system, which you can reach via https://apps.idnt.net/helpdesk/.
Alternatively we are also available by phone at +49 (6403) 9526-400.