Some email programs break lines at a specific length, others don't. Fortunately, Pegasus Mail can handle both.
More Email Quick Tips
If you encounter a line that does not wrap,
- press F5 or
- select Reader | Reformat long lines from the menu
to re-wrap text in incoming messages intelligently.
This setting is sticky. Pegasus Mail will remember it and reformat emails in the reader until you turn Reformat long lines off again.
Not that this only works if you open a message in its own window. Unfortunately, Pegasus Mail's preview pane does not have this functionality.

