The term is used many times here https://github.com/oystersauce8/elfeed/blob/master/elfeed-show.el

Googled it: https://duckduckgo.com/?q=elisp%3A+what+are+enclosures+in+elisp&t=h_&ia=web not much info actually.

  • It looks like a word made up by the author of the code. I guess it refers to some data structure elfeed uses to "enclose" information about entries. Commented May 29, 2019 at 16:13
  • If and when someone provides an answer to this, someone please change the tags. Maybe some elfeed user will answer this; if not, you're probably better off asking the elfeed maintainer. I didn't see any description of "enclosure" in the code, scanning it briefly.
    – Drew
    Commented May 29, 2019 at 21:03

1 Answer 1


I just looked it up myself when wondering why my podcasts came through with links to the audio on my rss reader on my phone, but the links were nowhere present in elfeed. I found the explanation at https://en.wikipedia.org/wiki/RSS_enclosure . The elfeed author was not, in fact, making up terms. In short, the enclosure to an RSS item is analogous to an attachment to an email, except for the key difference that the enclosure is only a hyperlink (ie to the mp3) and not the actual file. The actual data is usually not included on RSS links.

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