Note for users with Microsoft based Mail Services (,, etc.)

Unfortunately there are again some ongoing issues with Mail Services based on Microsoft Mail, such as,, etc.

Microsoft seem to block our Mails again and we have to claim this at MS. We would apologize for the inconvinience - and also think over how this can be handled in future. Perhaps best would be to use other mail providers from customer side which are not Microsoft based services as we are afraid this wouldn't be the last time with trouble here ;-(

Changing to another mail service must be done in the leading system (shop at and once logout/in here. If devices are missing just contact vstabi (at) to move them or register new.