On opening a submitted InfoPath 2013 form via its SharePoint Form Library, a form displays as designed (correct formatting etc), whether fully or partially populated. However, when viewed via email (Outlook 2010)*, the formatting is broken because populated multi-line text field's do not word break and therefore stretch horizontally across the page, placing all text on a single line and therefore breaking any width set in the form design itself. Multi-line is set in the display properties for these fields. Is there a way to ensure multi-line text fields word break when sent and displayed via email? Rich-text fields are not an option as an alternative I'm afraid.
*The form is sent as an email via Data Connection settings.