How do I access my Openprovider email solution email account?

You can access your Openprovider email solution email account by visitinghttps://mail.op-email.eu/SOGo/ through a web browser. Alternatively, configure your email client with the server settings: 
Incoming Mail Server (IMAP): mail.op-email.eu
Outgoing Mail Server (SMTP): mail.op-email.eu