By default the Author Metabox on the post editor displays only a drop down to set the author of that respective post/page. I'd like the author's contact info (email address) displayed on the Author metabox as well (only in the post/page editor, not on the front-end). Currently I have to go to my Users and search for the author of the post to view their contact info, which isn't very efficient.
Is there a tutorial or snippet to achieve this? I have not been able to find anything thus far. Any advice is greatly appreciated!