Did you know that if you try to download an email from gmail, they give you a .eml file which is basically gibberish for any sane person?
Welp, I solved that particular problem with https://moogle.cc.
Simply forward any email you want to download to bookmarks@moogle.cc. We'll respond with a shortlink to your email. Visit that link and click on the beautiful blue DOWNLOAD button and get a .html file containing your email.
Why would you want to download an email?
Look man, I just build the tools. I don't ask why you'd want to download emails. But I think you do, so do it!
One could also print to PDF. I'm guessing creating the HTML has attachments embedded as well?
Right now, I don't show the attachments on page but I do receive and process them to make them available for download. Do you see attachments as a necessary feature?
I know about printing as pdf but pdfs aren't easily text searchable, are they? With html, we could just open all downloaded emails in Sublime Text and do a text search. Pdfs aren't very good for that, imho.