In message , Mayayana
writes:
"J. P. Gilliver (John)" wrote
| You seem to just make things up on the spot. There
| are not "many" ways to send attachments in email.
|
| Yes there are.
|
| Indeed. Some of which most modern email/news software doesn't know
| about: for example, I can embed an attachment at any point within an
| email, and someone else using the same software will see what I sent,
| but someone using most other software will see the text I typed before
| the attachment, then two attachments - the one I embedded being one, and
| the text that came after being the other. [Most modern softwares
| _always_ put attachments at the end, perhaps putting a _link_ (often
| "cid:") in the body if they want to make it _appear_ that the attachment
| isn't at the end.]
You're describing the two versions of the same thing:
Inline and attachment. If the recipient doesn't enable
Nope. What I mean is that if I place an image (or any other attachment)
_in the middle of an email/post_, and examine the raw text of my email,
then it had the (UU or Mime/64) block _in the middle of the email_, i.
e. the text after the attachment actually _is_ after the attachment. If
you drop me an email with your email, I'll send you and example. (Can't
post one as this is a text-only 'group.)
HTML email then they should see an inline image as an
attachment. Otherwise they'll see it where you put
it in the message. Both are base64-encoded text
sections in the email. There's no difference in that.
Nope: nothing to do with HTML. If I send a truly inline image, _in the
middle of an email/post_, most other clients will see the image _and the
text that follows it_ as two attachments.
As you noted, the "cid:" ID will point to a Content-ID
in another content section to specify the image that
should be rendered. If it's meant to be an attachment
it will have Content-Disposition: attachment. That's all
specified in the MIME standard. I'm not aware of any
other formats in use for email.
https://en.wikipedia.org/wiki/MIME
Maybe 30 years ago old guys like you and Fred Flinstone
sent uuencoded pictures. 
I _think_ that's a separate matter, of how attachments (including
pictures) are encoded (UU or Mime/64).
3
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf
"Eastenders" is like being punched repeatedly in the face for half an hour. -
Stephen Mangan, in Radio Times 5-11 May 2012