Hotlink Protection and RSS Feed/Newsletter

I was wondering if anyone can help to solve the issue of Images not Shown in the Newsletter if the hotlink protection is activated. I saw there is the need to create a rage rule for the RSS feed (being but it is not very clear how to do it. I created the page rule and deativated Secutity and SSL but had no luck in both cases.
Can anyone give a hint on how to do it?