RSS allows your contacts to easily stay informed about your product/service/site.
Using RSS with ActiveCampaign will let you add your feed URL to email campaigns which will automatically pull in new updates. Customize and automate your RSS driven campaigns to keep your contacts up-to-date and highly pertinent.
It helps your contacts retrieve the latest content from your site/blog. It's a real time saver because your contacts do not need to go to your site constantly.