This scheduled maintenance affects: e-Boks app's (e-Boks App Denmark, e-Boks App Sweden, e-Boks App Norway), e-Boks web client (e-Boks web client users - Denmark, e-Boks web client company - Denmark, e-Boks web client users - Sweden, e-Boks web client users - Norway), Services (Signing service, Notification service, Push service, Warning Service), TEST Environments (DEMO DK environment, DEMO NO environment, INTEGRATION environment), NgDP Commercial Front End Client (NgDP Commercial Front End Client, Public Digital Post, Public login provider – Nemlog-in), and APIs - Customer APIs (International REST API, Public REST API - Denmark, EBMS API - Norway, S/MIME, File interface).