On 1/4/2020 5:49 PM, between "Wilfred van Velzen : August Abolins":

--[snip]--
 gpg: Signature made za 04 jan 2020 22:23:26 CET using RSA key ID 5789589B
 gpg: Good signature from "August Abolins "
 [unknown]
 gpg: WARNING: This key is not certified with a trusted signature!
 gpg:          There is no indication that the signature belongs to the
 owner.
 Primary key fingerprint: D0EB 2A29 5204 F316 7EB2  503C EF0E 8965 5789 589B
--[snap]--

Interesting.  I *did* pull the key set that Tommi signed, and added that
one to my key management system for messages originating from the TB
60.9 pc.

Maybe there is an updated version since then?

Did you get the whole key collection?  Or did you pull one of the subkeys?

--- Thunderbird 2.0.0.24 (Windows/20100228)