Update bulk_mailer_url_root_domains.txt (#642)

Co-authored-by: Sorted Order Validation <[email protected]>

Author: aidenmitchell

bulk_mailer_url_root_domains.txt

@@ -5,6 +5,7 @@ mandrillapp.com
 notifyvisitors.com
 omnisend.com
 postmarkapp.com
+redirectingherenow.com
 rs6.net
 sendgrid.net
 sendsay.ru