mutt/.mime.types

   1 application/epub+zip epub
   2 application/gzip gz
   3 application/metalink4+xml meta4
   4 application/pdf pdf
   5 application/x-perl pod
   6 application/zstd zst
   7 image/jpeg jpeg jpg
   8 image/jxl jxl
   9 image/png png
  10 image/webp webp
  11 image/x-djvu djvu
  12 image/x-portable-anymap pnm
  13 image/x-portable-arbitrarymap pam
  14 image/x-portable-bitmap pbm
  15 image/x-portable-floatmap pfm
  16 image/x-portable-graymap pgm
  17 image/x-portable-pixmap ppm
  18 image/x-xpixmap xpm
  19 text/info info
  20 text/plain txt
  21 text/x-man man