Outlook 2003 mail editor has some undocumented shortcut keys for formatting plain text messages (!) that I accidentally triggered.
- Ctrl+R right justifies the current paragraph and all new text. To restore your message back to left-justified formatting, select Format / HTML then select Format / Plain Text menu items. The shortcut key and menu item to left-justify a paragraph aren't available in plain text mode.
- Ctrl+Shift+' toggles the Smart Quote (or Curly Quote) feature, where a leading and trailing quotes are ‘ ’ and “ ”.
These shortcut keys and features aren't useful in plain text mode. On the other hand, the useful shortcut key, Shift+F3 to switch case of selected text, doesn't work.