On Tue, Dec 8, 2015 at 9:00 AM, David Nielson <david@naptastic.com> wrote:
The recent thread on memory fences went almost entirely into my spam folder, because SPF records for mail servers used by people on this list are missing or wrong. It's almost 2016; SPF really isn't optional anymore. Please contact your system administrators and fix your DNS.

# dig +short TXT linuxaudiosystems.com

duly added. more subtle than you might think, because linuxaudiosystems.com is both an actual host and also for MX purposes handled by google.