How do I delete a folder when I have no permission for it?

[Guest]

I have 3 folders, from the dozens of others folders I have, which I cannot
delete them. It always pop up a message saying "My service provider do not
allow me..." etc. Looks like I have no permission. I cannot even make the
backup of my mail box. Since looks like I have no permission for it. Can
someone help me out? My idea is to recover the ownership of my folders. How
can I do that?
Thanks

 

[Guest]

Do you have administrator permissions? You may have to change your user
account settings or log on as an administrator to perform some tasks, such as
deleting certain files and folders.

 

[Lanwench [MVP - Exchange]]

I have 3 folders, from the dozens of others folders I have, which I
cannot delete them. It always pop up a message saying "My service
provider do not allow me..." etc. Looks like I have no permission. I
cannot even make the backup of my mail box. Since looks like I have
no permission for it. Can someone help me out? My idea is to recover
the ownership of my folders. How can I do that?
Thanks

What kind of folders - PST Files?
What is the exact text of the error message?
What version/mode/SP level of Outlook (help | about)