diff --git a/lib/outputrenderers.php b/lib/outputrenderers.php
index 228960802f3..2aa8443e03d 100644
--- a/lib/outputrenderers.php
+++ b/lib/outputrenderers.php
@@ -4128,6 +4128,24 @@ EOD;
         return $this->doc_link($path, $text);
     }
 
+    /**
+     * Returns the HTML for the site support email link
+     *
+     * @return string The html code for the support email link.
+     */
+    public function supportemail(): string {
+        global $CFG;
+
+        if (empty($CFG->supportemail)) {
+            return '';
+        }
+
+        $supportemail = $CFG->supportemail;
+        $label = get_string('contactsitesupport', 'admin');
+        $icon = $this->pix_icon('t/email', '', 'moodle', ['class' => 'iconhelp icon-pre']);
+        return html_writer::tag('a', $icon . $label, ['href' => 'mailto:' . $supportemail]);
+    }
+
     /**
      * Returns the page heading menu.
      *
diff --git a/theme/boost/templates/footer.mustache b/theme/boost/templates/footer.mustache
index 70c72ed4482..20b1ca48d31 100644
--- a/theme/boost/templates/footer.mustache
+++ b/theme/boost/templates/footer.mustache
@@ -42,7 +42,11 @@
                 {{{ output.page_doc_link }}}
             </div>
         {{/ output.page_doc_link }}
-
+        {{# output.supportemail }}
+            <div class="footer-section p-3 border-bottom">
+                {{{ output.supportemail }}}
+            </div>
+        {{/ output.supportemail }}
         <div class="footer-section p-3 border-bottom">
             <div class="logininfo">
                 {{{ output.login_info }}}