app/views/user_mailer/send_feedback.html.erb
<%=simple_format(I18n.t(:mail_salutation, :value => 'Administrator')) %>
<%= simple_format(@message) %>
<%=simple_format(I18n.t(:mail_complimentary_close)) %>
<%=simple_format(I18n.t(:mail_footer)) %>
<a href='<%= "#{SETTINGS['HOST_URL']}" %>'>Estimancy</a>