Cannot set a "to" column in sent box of email.
In my new macbook air (yosemite) there is no column for who email was sent to in the sent mail box.
I do have a FROM column. When I uncheck From in View and check TO the To information will show.
But when I return to mac mail the next time the TO column is gone and only FROM shows (returns).
Is there a way to make TO permanent?
MacBook, Mac OS X (10.6.8)