John,
No offence meant, but I would like to suggest you to also look at your
mail client and/or mail server configuration, especially some silly
"privacy" filters touching on headers.
It looks like something in your set up is preventing the two headers
References, and In-Reply-To from your client, to pass through.
This has "only" caused six different threads so far, - see
https://i.imgur.com/Mifw9kz.png
Den 28-12-2022 kl. 18:55 skrev John Stimson via users:
On 2022/12/28 15:07:31 Bill Cole wrote:
Perhaps your DNS resolution is to blame. Are you using a local
recursive
resolver that does no forwarding?
The machine has bind9 running locally to provide DNS for its own
domain, and uses it for name resolution. Bind9 is configured to use
OpenDNS and Google as forwarders.
^
Here you have the error. Stop that Google/OpenDNS stuff, as well as any
other public / shared resolvers.
DNS queries for DNS based reputation lists as these will need to pass
through directly.
Sounds like a PEBKAC.
->
https://cwiki.apache.org/confluence/display/spamassassin/CachingNameserver
NOTE: A local DNS caching server should not forward to other DNS
servers to ensure your queries are not combined with others.
--
Med venlig hilsen / Kind regards,
Arne Jensen
