Neue Ordner erstellen

Hello,
how can I create new folders in e-mail, xyzxxx@XXX.com,Posteingang, to file the different e-mails in the individual folders?
I hope that I have explained everything understandably.

Thanks a lot

As long as the server supports it, right-click on Inbox and choose New Folder.

Hello Gary,

thanks for your help.
Then I get this error message.

You will need to contact the email provider and ask.

I am not sure what they mean by your quota is exceeded.
It could just bee that you have no space left on the server.