On Sat 24 Jan 2026 at 14:14:40 (-0700), [email protected] wrote: > From: <[email protected]> > Date: Thu, 22 Jan 2026 18:17:54 +0100 > > My guess is that those offered for download are "attachments" (i.e. > > have the "Content-Disposition: attachment" in MIME parlance, whereas > > those being shown have "Content-Disposition: inline" and are (one > > of) several alternatives. > > Makes perfect sense. > > A message marketing "Detox patches" is rendered graphically. These > are all of the Content_ header lines. > [ … ] > > No Disposition or disposition. Something more subtle is involved.
Perhaps the ones that display graphically are being told to do so by some HTML code in an attachment, rather than by the image's own Content-foo headers (assuming that's possible). Cheers, David.
