Viktor Dukhovni via Postfix-users wrote in
 <z6r8eqr7lmw6w...@chardros.imrryr.org>:
 |On Mon, Feb 10, 2025 at 04:14:36PM +0100, Danjel Jungersen via Postfix-u\
 |sers wrote:
 ...
 |If so, that's pretty simple, you need a local DNSSEC validating resolver
 |(BIND, unbound, knot, not systemd-resolved or dns-masq).

Why not dnsmasq?

  $ dig +dnssec @127.0.0.1 postfix.org DNSKEY

  ; <<>> DiG 9.20.5 <<>> +dnssec @127.0.0.1 postfix.org DNSKEY
  ; (1 server found)
  ;; global options: +cmd
  ;; Got answer:
  ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5256
  ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1

  ;; OPT PSEUDOSECTION:
  ; EDNS: version: 0, flags: do; udp: 512
  ;; QUESTION SECTION:
  ;postfix.org.                   IN      DNSKEY

  ;; ANSWER SECTION:
  postfix.org.            900     IN      DNSKEY  257 3 13 
i/mbxbkeB1dIBk92OJoVmcQJP8HQzGqm7LDqmaUusqmexdeGLe1qbHTM 
+FP83JjcBN0VZNbQBT2077QgMNAKIw==
  postfix.org.            900     IN      DNSKEY  256 3 13 
J0jDckCF1wK/deFpt40cOiamhyhvf+vB0T/MT7xtTOC1qrPQyFkqwAAZ 
4MoMx3Ob83HIGmG/GfqaCXKa80zgqw==
  postfix.org.            900     IN      RRSIG   DNSKEY 13 2 900 
20250223211234 20250209202427 60454 postfix.org. 
PnTs9OAvPcSqQT/LB1+Sxwg5TYKOWxLVuoOk5IQ9i0T7R7/rU/c+PpuI 
tPJYbKZsnCuccxkmDsvXlxmtuqGuKw==

This works?  (dnsmasq had a CVE (i think, anyway: breach)
regarding DNSSEC and now logs more entries than ever:

  Feb 11 12:03:00 dnsmasq[3005]: queries for authoritative zones ..
  Feb 11 12:03:00 dnsmasq[3005]: DNSSEC per-query subqueries HWM ..
  Feb 11 12:03:00 dnsmasq[3005]: DNSSEC per-query crypto work HWM ..
  Feb 11 12:03:00 dnsmasq[3005]: DNSSEC per-RRSet signature fails HWM ..)

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)
|
|In Fall and Winter, feel "The Dropbear Bard"s pint(er).
|
|The banded bear
|without a care,
|Banged on himself for e'er and e'er
|
|Farewell, dear collar bear
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