[OT] NNTP client and threading

[Vladimir Panteleev via Digitalmars-d]

On Friday, 17 February 2017 at 18:46:21 UTC, ketmar wrote:
> Ali Çehreli wrote:
>> On 02/17/2017 09:52 AM, ketmar wrote:
>> 
>>> that one didn't had "References:" set -- i forgot to append 
>>> 'em to
>>> headers. this one should have 'em.
>> This one worked.
>> Ali
>
> thank you. so mail readers aren't that smart after all. ;-)

Even in the presence of "In-Reply-To", "References" is still 
useful when different parties see different Message-IDs (e.g. due 
to mailing-list gateways). That way, replies (except top-level 
replies) will still at least be nested in the right thread 
instead of appearing as a new thread.