Use accessible font color
To ensure that text displays well in High Contrast mode, use the Automatic setting for font colors by doing the following:
1. Select your text.
2. Select Message > Font Color.
3. Select Automatic.
Use plain Backgrounds for Text
The use of busy, graphic backgrounds for text is popular now but it renders text very difficult to read, in many cases. Plain backgrounds, preferably of off white, cream, ivory, yellow or pink are best for reading black text.