The APS task to provide Open-Xchange hosting for a subscription or create mailbox with Open-Xchange service fails with the following diagnostics:
Failed to create OX mail account context=98365 'email@example.com': Illegal chars: " " in login mapping'
Service 'account' can not be provided for application instance: Invalid value passed for setting 'user_email': Incorrect character in domain name:'�':Invalid value passed for setting 'user_login': Incorrect character in domain name:'�'.
Subscription has the mailbox
info@<all domains> and IDN (International Domain Name) domain like cüstomer.com.
The Open-Xchange 6.12 or earlier is installed.
IDN domains are not supported in the Open-Xchange 6.12, they are supported starting from the 6.14 only.
The Open-Xchange APS application and the customer's application instance in question have to be upgraded to 6.14 or higher, the failed task has to be resubmitted after that.