Re: Invisible attached files?

On Fri, 26 Apr 2019 13:51:56 +0200, Wolfgang Denk said:
> Only if I follow the hint "Invoke menu with right button." I will
> get a menu:
>
> 	Decode part as MIME
> 	Save a multipart/alternative...
> 	Print a multipart/alternative as text...
> 	Show alternative 1: text/plain
> 	Show alternative 2: multipart/mixed
>
> Selecting alternative 2 will then show all parts, in the example
> here:

That's actually standards-compliant. If the attachments are part of
the multipart/mixed, they should not be displayed if the MUA is displaying
the text/plain.

The nesting of body parts in MIME matters.

About the only solution I can think of is for a multipart/alternative,
to put up a small summary of the part(s) contained in the alternative(s)
not being displayed.