Question for those using Thunderbird as a news reader.

If you delete a post, is there a way of getting it back?

They way mine is set, if I accidentally click on "delete", the post
disappears. It's not put in a trash folder (like e-mail). I've clicked
on "Undo delete" in the Edit bar but that doesn't return the post to
the viewer.

I know I can probably go hunt for it in a cache or something but was
wondering if there is a setting to put deleted newsgroup posts in the
trash bin where it can be recovered.