Issue #3286731 by Ahmed_Samir: HTML emails are not rendered properly

email_tfa.module

@@ -76,7 +76,7 @@ function _email_tfa_mail_text($type, $tfa, $language) {
     $text = Xss::filter($config->get('subject'));
   }
   elseif ($type == 'body') {
-    $text = Xss::filter($config->get('body'));
+    $text = Xss::filterAdmin($config->get('body'));
   }
 
   return Drupal::token()->replace($text, $tfa, [

replace-xssfilter-with-xssfilteradmin-to-allow-HTML-emails-to-be-rendered-properly-3286731-2.patch

-diff --git a/email_tfa.module b/email_tfa.module
-index 8f4bed5..cf1b50f 100644
---- a/email_tfa.module
-+++ b/email_tfa.module
-@@ -76,7 +76,7 @@ function _email_tfa_mail_text($type, $tfa, $language) {
-     $text = Xss::filter($config->get('subject'));
-   }
-   elseif ($type == 'body') {
--    $text = Xss::filter($config->get('body'));
-+    $text = Xss::filterAdmin($config->get('body'));
-   }
- 
-   return Drupal::token()->replace($text, $tfa, [