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Ability to Adjust column widths: Make all columns adjustable in width. I have 3 columns plus ads. Some of my mail is wider than the Reading Pane. I am unable to change the width of Inbox column or Reading Pane. Therefore I am unable to open many emails because they are too wide for the space.
I then have to open the email in order to read the right side. It is a PAIN to have to open the reading PANE!!!!! I used to be able to narrow Folders and Inbox (subject & sender) so I could read the emails.