On 01/03/16 13:59, Matthew Lear wrote:
>> There is probably a bug here.
>>
>> On Tue, Mar 01 2016, Matthew Lear wrote:
>>> Notmuch shows this as:
>>>
>>> [ multipart/encrypted ]
>>> [ Decryption successful ]
>>> [ Good signature by:  xxxx ]
>>> [ application/pgp-encrypted ]
>>> Version: 1
>>> [ multipart/mixed ]
>>> [ multipart/alternative ]
>>> [ text/plain (hidden) ]
>>> [ multipart/related ]
>>> [ text/html (hidden) ]
>>> [ image.jpg: image/jpeg (hidden) ]
>>
>> You're saying here that you don't get shown the text/html part?
> 
> Apologies. No, I do get shown the text/html part. I just collapsed all the
> parts here for illustration purposes.
> 
>>> (setq notmuch-multipart/alternative-discouraged '("text/plain"
>>> "multipart/related"))
>>
>> I'm curious to understand why you discourage multipart/related. That's
>> almost always used to wrap a text/html part with an image/jpg that the
>> text/html part refers to by cid:.
> 
> Fair point. I think I had this discouraged as a hangover from having to
> deal with malformatted PGP encrypted emails. I don't receive emails from
> people which have been encrypted with that sw any more so I should
> probably remove it. Even with multipart/related discouraged though, I
> don't have any problem with embedded images / cid etc. All displayed ok.
> 
>> Are things different if you discourage only text/plain?
> 
> Nope. No change.

This is easy to reproduce on linux with thunderbird (I'm using v38.5.0).
Edit -> Account Settings -> Composition & Addressing and check 'Compose
messages in HTML format' and send yourself a pgp encrypted email using
PGP/MIME, open it in notmuch-emacs and reply to it. You'll see the
'Bodypart insert error'.

If you need any more info let me know...