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.

d
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