Outlook is part of windows office program and millions of companies, persons using this mailing system. Almost every single part of outlook is customizable according to user need.
Exceptionally in the case of a view, the outlook is highly customizable.
1. In Mail, on the View menu, point to Current View, and then click Customize Current View.
2. Click Other Settings ->Change the message list row font to a larger font size
3. Under Column Headers and Rows->click Row Font.
4. Click a font, font style, and size that you want to use.