Had the notice here, can confirm.
On Sat, Oct 22, 2016 at 1:01 AM, jim stephens <jwsmail at jwsss.com> wrote:
  maybe the bounces from the DDNS attack today?
Wouldn't be surprised.  It
 was that serious.  8.8.8.8 may not have had problems, but anyone else using
 something from the attacked DNS provider would have come up gooseeggs, and
 maybe that bounced a lot of stuff the list sent out.
 Thanks
 Jim
 On 10/21/2016 7:29 PM, Jay West wrote:
  100% of the sub disabled was in the @gmail.com
domain, for domainkeys
 according to the message.