Testing new list configuration

[Joe Nelson]

> Should work better now.

Great, that message passed DMARC for begriffs.com. There are still some issues we may be able to improve for deliverability though:

X-Spam-score: 2.8
X-Spam-hits: HEADER_FROM_DIFFERENT_DOMAINS 0.248, HELO_DYNAMIC_IPADDR 3.243,
  MAILING_LIST_MULTI -1, RDNS_DYNAMIC 0.363, LANGUAGES en, BAYES_USED none,
  SA_VERSION 3.4.0
X-Spam-source: IP='18.221.180.137',
  Host='ec2-18-221-180-137.us-east-2.compute.amazonaws.com', 

The biggest spam signal appears to be the way our MTA says HELO. Perhaps it's identifying by IP address rather than fully qualified domain name. For example, in postfix, the config has a "myhostname" configuration variable which should be set to lists.frostbyte.cc. By default the variable uses the hostname of the relay machine in question as it appears inside the OS. Either that or the PTR DNS record might look sketchy:

$ dig -x 18.221.180.137
137.180.221.18.in-addr.arpa. 300 IN	PTR	ec2-18-221-180-137.us-east-2.compute.amazonaws.com.

Should also be pointing at lists.frostbyte.cc

(CC'ing you directly Dave, in case gmail is choosing to send the mailing list message to spam.)