[Elecraft] "Official" K-4 Reflector?

[ken.kj9b at gmail.com]

Having just ordered a K4D package, I wanted to subscribe to the K-4
Reflector.  I don't see one referenced on the Elecraft website, like this
one is.  When searching on groups.io, I see two, one called "Elecraft-K4",
created in 2019, and one called "k-4 elecraft", created in 2021.  I'm
assuming the one created in 2019 is the "official" one?

Thanks in advance.

73,
Ken, KJ9B