You may want to enlarge the text in the subject and column headers to make them easier to read. Please follow the steps below for details:
Step 1: Click "Mails" button to open the message window;
Step 2: Click "View Settings" in the "View" tab;
Step 3: Click "Other Settings" in the new window;
Step 4: Click "Column Font" and to change the font or font size for the column headers in your Inbox ("From" and "Subject");
Step 5: Click "Row Font" and to change the font or font size for the message in the subject lines;
Step 6: The text in the subject and column headers is changed.