On Tue, Mar 23 2021, David Bremner wrote:

> Tomi Ollila <tomi.ollila@iki.fi> writes:
>
>> On Tue, Mar 23 2021, Firmin Martin wrote:
>>
>>> Hi,
>>>
>>> I have emails whose the "To" field is undisclosed recipients. In JSON:
>>>
>>> ```
>>> "To": "undisclosed-recipients: ;"
>>> ```
>>>
>>> I would want to tag such email as spam, but I can't query them
>>> using 
>>>
>>> ```
>>>  notmuch show --format=json to:"undisclosed-recipients: ;"
>>> ```
>>>
>>> or any variation (regex etc.).
>>>
>>> This question has already been addressed in 2013 [1]. Are there any plan
>>> to implement this feature or available workaround ?
>>
>> Tried. many things. did not work. notmuch-search-terms(7) tells
>>
>>      to:<name-or-address>
>>
>> (so no regex syntax...)
>>
>> I don't know why that doesn't work. IIRC no plan, but patches welcome >;D
>
> The (light) technical background is that regex syntax in notmuch
> requires value slots, and someone (TM) would need to evaluate how much
> adding a value slot for to: would cost in terms of database size / speed
> of queries.
>
> I think there's a separate question about address groups being ignored,
> discussed in the linked thread.

But the question if why doesn't to:undisclosed-recipients:
or to:undisclosed-recipients work

>
> d
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