Hi Bastian,
Indeed I did misunderstand RBL and also glossed over the Spamhaus FAQ
before posting. I was set right by Spamhaus themselves and verified that
I'm getting the too-many-queries response back.
As an aside, after reading their FAQ, I'm very pleasantly surprised by
Spamhaus' thoroughness. I've generally found most other FAQs these days
are not quite so thorough or relevant.
Thanks much for responding!
-Brian
On 2022-11-04 02:13, Bastian Blank via mailop wrote:
On Thu, Nov 03, 2022 at 10:59:22AM -0500, Brian Knight via mailop
wrote:
I'm seeing DNS issues this morning connecting to sbl.spamhaus.org.
This morning, my Postfix server was rejecting all incoming emails as
spam.
Found that the A record for sbl.spamhaus.org is gone, replaced with
SOA and
NS records that look a bit odd.
You seem to missunderstand RBL. The correct way to test this RBL is
via
a lookup for "2.0.0.127.sbl.spamhaus.org", which is also listed in the
FAQ at https://www.spamhaus.org/faq/section/DNSBL%20Usage.
Queries direct to the NS servers return the same result. Queries via
AWS and
Comcast return the same result also.
And you always need your own DNS recursor to query RBL.
Bastian
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