Fix Relative Links and Images in Feeds
Turns relative links and image paths such as "/about/" in feed content into full URLs, so they work in feed readers and RSS emails.
Snippet Library
RSS Feeds snippets for WordPress
Snippets for WordPress RSS feeds: add featured images and custom post types, delay publishing to feeds, credit your site on scraped content or turn feeds off. For publishers and podcasters whose readers follow along by feed or email.