After you've imported your feed, and designed your RSS campaign, you can set the details of when, how, and to whom your RSS email sends.
Jump to more info on 'clean display'
From your RSS page, under the feed you just imported, click Settings.
Your RSS campaign sends only when there’s a new post. For example, if you select 1 Days for a daily send, but only post 3 days a week, your RSS email will also only send 3 times a week. If there's no new content when Email Marketing checks your feed, no email gets sent.
If a subscriber is a member of more than one added list, they will only receive a single copy of each RSS mailing. Read more about overlapping subscribers.
You can use the macro (post_title) to insert the most recent post title, dynamically. For example, if the Subject field says Daily Updates From Me: (post_title), and your latest post is called Hello World!, then your next RSS email subject line will be: Daily Updates From Me: Hello World!
No matter what the 'clean display' settings are, Email Marketing is still only pulling your RSS feed content. If you have specific settings on your feed, that only show an excerpt of your post -- or already includes a link back to your Website -- the 'clean display' is not recommended for you. You want to show your entire feed content.