Bill and all, (these help with increasing the font permanently within outlook 2010)
We recently had a user request changing the font size in the following, in Office 2010, because it was too small to read. The fields:
Preview Pane, Reading Pane, and Navigation Pane. Here are the instructions for each (these don't involve modifying the zoom).
Preview Pane: While clicked anywhere in the Preview Pane message, at the top, click on the VIEW tab...on the left side of the window within the ribbon, you should see an option for Change View>Manage Views. Under the view name, choose the Preview then
click on Modify (to the right) button. This gives you the Advanced View Settings for the Preview pane. To change the Font, choose the Other Settings... option (it says Fonts and other Table View settings on the right of that button.) Change them
to your hearts content! Changes normally don't take place till you OK everything and choose Apply View.
Reading Pane: Click on FILE>Options. Choose MAIL>Signatures and Stationery>Personal Stationery. Change the Font under Composing and reading plain text messages if you want the reading pane to show a larger font when you enable it within Outlook.
To test, try a crazy, unconventional font so you can see the change in the reading pane.
Navigation Pane: Click on FILE>Options>Advanced. Under OUTLOOK PANES, choose Navigation Pane. Click FONT button to increase the size and type of Font in your Navigation Pane.
Any questions or if you need more details, lemme know!
-Gonzo