View Richly Formatted Mail in Plain Text with Mac OS X Mail
To view emails using rich formatting and remote images in plain text with Mac OS X Mail:
- Open the message.
- Press Command-Option-P.
- Alternatively, you can select View | Message | Plain Text Alternative from the menu.
If you want to go back to the rich formatting, select View | Message | Best Alternative from the Mac OS X Mail menu.
You can also have Mac OS X Mail show you available plain-text alternatives by default.

