app/views/layouts/_mailer_footer.html.erb
<table cellpadding="0" cellspacing="0" border="0" style="margin: 0 auto; max-width: 700px; width:100%; margin-bottom: 40px; padding: 0 20px;">
<tbody>
<tr>
<td style="text-align: center; border-top: 1px solid #dadfe1; padding-top: 20px;">
<p style="<%= css_for_mailer_org %>">
<%= setting["org_name"] %>
</p>
<p style="<%= css_for_mailer_footer %>">
<%= t("mailers.no_reply") %>
</p>
</td>
</tr>
</tbody>
</table>