Well I am using Thunderbird 45.7.1 and I see this "Chuck Guzis via
cctalk <cctalk at classiccmp.org>" as "From" in your message.
Paul.
On 2017-02-28 7:32 PM, Chuck Guzis via cctalk wrote:
  On 02/28/2017 03:18 PM, Torfinn Ingolfsen via cctalk
wrote:
  FWIW, reply and reply all in Gmail web interface
now lists both
 addresses (originator and mailing list). I don't know if this is a
 change again.
 Also, I find it somewhat funny in a bizarre way that people on this
 list who have experience with all kinds of systems, all kinds of
 user interfaces and many generations of machines (computers and
 otherwise) can complain over a little thing like this change.
 (Bikeshed?) 
 I can deal with the new format pretty well, but for one aspect, which
is
 very annoying.
 I use Thunderbird as my email reader.  In the past, the "From" field
 displayed in the message summary would tell you who sent the message to
 the list.  It no longer does--it's all "CCtalk".
 That makes separating the grain from the chaff a lot more difficult in
 my case.
 If anyone has a workaround for Thunderbird, I'm all ears.
 --Chuck