html, body, head tags won't be allowed in email template editor - view source

I am creating a email template and I do not want to use the email template builder, i just want to paste a html mail template that i have already coded (using the editor’s view source window).
I have noticed that since SugarCRM CE, same happens in SuiterCRM that the email template editor won’t accept tags such html, body, head but only p, div, ul, etc.

How can that be allowed?

Thanks in advance

I figured it out

at line number 198 of include/clean.php


return $clean_html;
return $dirty_html;

because i like dirty html :wink: