Removing expired keys

[Jerry]

On Sun, 25 Feb 2018 14:48:23 +0100, Dirk Gottschalk via Gnupg-users stated:

>Hello.
>
>Am Samstag, den 24.02.2018, 07:20 -0500 schrieb Jerry:
>> Kleopatra Version 3.0.2-gpg4win-3.0.3
>> 
>> Running the command from Kleopatra <Tools> <Refresh OpenPGP  
>> Certificates> on a  
>> Windows 10 PRO amd64 machine, displays numerous expired certificates.
>> The
>> complete output is available here: https://seibercom.net/GPG-Expired-
>> Keys.txt
>> 
>> Is there any command that I can run from either Kleopatra or the
>> Windows'
>> command line that will remove all of these expired certificates? I
>> would
>> really love to clean up system and removed expired or revoked
>> certificates.  
>
>I run under Linux and have a shell script for this. AFAIK there is no
>way to do this automatically from gpg itself.
>
>
>> Also, how do I deal with "signatures not checked due to missing keys"
>> warnings?  
>
>You could turn on automatic key retieval in gog.conf. add the following
>to the keyserver-options parameter:
>
>auto-key-retrieve

It is already there.

>This will automatically download missing keys when you try to verify a
>signature.
>
>Regards,
>Dirk