Email Lines Not Wrapping

When someone fills out a form I have an email sent to me and sometimes a confirmation email (mail 2) sent to the person filling out the form. These emails are formatted to show responses on different lines (e.g., name on one line, email on another line, etc.). Until recently this worked fine. However, now the emails sent to me do not show line spacing while emails sent to the person filling out the form does show responses on different lines.