We have monitored the service for stability and this incident shall now be closed.
We have identified the cause of the issue and have implemented a fix. We will now monitor the service for stability and provide updates as soon as new information becomes available.
We are aware of an issue with customers being unable to add or remove users and groups using Schemus synchronization. New users will not be able to send or receive emails through the service.
We are currently investigating the issue and will provide updates as more information becomes available.