Grey Italics folder?

Using imap I get a folder that is grey and in Italics. What does that mean?

Hello Jan,
folders can look this way when you don’t have write permission to the folder, this can happen when you attempt to delete a folder that usually still has some subfolders or something that can’t be deleted inside, and after the attempted deletion the server might ‘revive’ the folder from Trash, but you without permissions to the folder.
Or is this a folder you are still using?
Since it’s an IMAP I suggest trying to resynchronize your account first, if it doesn’t help maybe try looking if there wasn’t some faulty attempt at deleting a folder or file on the server, delete or save what you need and then resync.

Best regards,