Re: [Evolution] GPG - cannot verify sender

[Ralf Mardorf <silver bullet zoho com>]

On Wed, 15 Aug 2018 15:34:19 -0500, Japhering via evolution-list wrote:
> On Wed, 2018-08-15 at 12:29 +0200, Gary Curtin wrote:
> > Newbie with Evolution and GPG, so please be patient. :-)
> >
> > When receiving GPG signed messages I keep getting the yellow error
> > bar saying "Valid signature, but cannot verify sender (Name <  
> > email address com>)  
> >
> > I have the public key in Seahorse, so why is this error showing?  
>
> Gang, correct me if I'm wrong... 
>
> I read this as the sender's public key is not on Gary's keyring in
> Seahorse and/or not available from a public key server.
>
> The message explicitly states the key is valid, meaning properly
> formed and not tampered with, but then says it can't be verified.  Two
> different actions which have to happen in sequence.
>
> if I'm correct, then the following should resolve the yellow
>
> gpg --keyserver <public server> --recv-keys <keyID in question>

That's wrong. I explained with an example how to solve this issue.

Btw. you even could get a yellow surrounded mail with a grey message
"This message is signed, but the public key is not in your keyring" and
an additional green message "Valid signature (foo bar com)".