Owa overijssel nl webmail
You're looking for the webmail service of the province of Overijssel in the Netherlands!
The province of Overijssel uses the "Owa" webmail service, which is a custom-branded version of the Microsoft Outlook Web App. Here's the login page:
You can access your email account by logging in with your username and password. If you're having trouble logging in, you can try resetting your password or contacting the IT department of the province of Overijssel for assistance.
Note that the Owa webmail service is only accessible to authorized users with a valid username and password. If you're not a registered user, you won't be able to access the service.