Your system is = asking your own 127.0.0.1 DNS for the AAAA for ns.dreamchaser.org = (because sendmail attempts ipv6 before it attempts = ipv4)

You forgot a trailing . in your NS records. = Your DNS kicks back that =E2=80=9Chey, I don=E2=80=99t know about = ns.dreamchaser.org=E2=80=9D so it gives you an SOA record. (answer =3D = 0, authority =3D 1)

is doing lookups for = ns.dreamchaser.org.dreamchaser.org because of = that.

Post your zone = file?

Also, pro tip, If you say =E2=80=9CI=E2=80=99= m running this query and everything comes back as expected=E2=80=9D = please do include the OUTPUT of those queries. You don=E2=80=99t = know what you=E2=80=99re looking for.

Here=E2=80=99= s what I think it happening: (Have a reference here: https://docstore.mik.ua/orelly/other/Sendmail_3rd/= 1565928393_sendmail3-chp-9-sect-2.html)

Your = system is looking at its own rdns/fdns, and discovering that its = hostname is ns.dreamchaser.org.dreamchaser.org (probably because your = primary IP is not present in /etc/hosts). It attempts to deliver = to itself, and finds that mail SHOULD come to it (since your = misconfiguration says your MX is ns.dreamchaser.org.dreamchaser.org AND = that=E2=80=99s what you resolve to, but = ns.dreamchaser.org.dreamchaser.org isn=E2=80=99t in = /etc/mail/local-host-names.

Recommendations:

* Put your primary addresses in /etc/hosts =E2=80=94 = there are numerous documented cases of sendmail ignoring /etc/hosts but = it *might* help clue it in to your proper hostname at least.

* = Fix your forward and reverse DNS

* (and in fact, stop faking = it out. Fix it at your hosting provider. if your hosting = provider is taking this long, find another = one)

-Dan

On May 18, 2023, at 6:36 PM, vagabond = <vagabond@blackfoot.net> wrote:

I turned a bunch of debug = flags on and ran sendmail in the foreground,
and I see the following = output:

sm_gethostbyname(ns.dreamchaser.org, 28)...
;; = res_nquerydomain(ns.dreamchaser.org, <Nil>, 1, 28)
;; = res_query(ns.dreamchaser.org, 1, 28)
;; res_nmkquery(QUERY, = ns.dreamchaser.org, IN, AAAA)
;; res_send()
;; = ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19039
;; = flags: rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; =      ns.dreamchaser.org, type =3D AAAA, class =3D= IN
;; Querying server (# 1) address =3D 127.0.0.1
;; new DG = socket
;; got answer:
;; ->>HEADER<<- opcode: QUERY, = status: NOERROR, id: 19039
;; flags: qr aa rd ra; QUERY: 1, ANSWER: = 0, AUTHORITY: 1, ADDITIONAL: 0
;; =      ns.dreamchaser.org, type =3D AAAA, class =3D= IN
dreamchaser.org.        10M IN = SOA      ns.dreamchaser.org. = root.dreamchaser.org. (
=             &n= bsp;           &nbs= p;            =   2023051708      ; serial
=             &n= bsp;           &nbs= p;            =   4H =             &n= bsp;; refresh
=             &n= bsp;           &nbs= p;            =   1H =             &n= bsp;; retry
=             &n= bsp;           &nbs= p;            =   1H =             &n= bsp;; expiry
=             &n= bsp;           &nbs= p;            =   10M ) =           ; = minimum

;; rcode =3D (NOERROR), counts =3D an:0 ns:1 ar:0
;; = res_nquerydomain(ns.dreamchaser.org, dreamchaser.org, 1, 28)
;; = res_query(ns.dreamchaser.org.dreamchaser.org, 1, 28)
;; = res_nmkquery(QUERY, ns.dreamchaser.org.dreamchaser.org, IN, AAAA)
;; = res_send()
;; ->>HEADER<<- opcode: QUERY, status: = NOERROR, id: 45481
;; flags: rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, = ADDITIONAL: 0
;; =      ns.dreamchaser.org.dreamchaser.org, type =3D= AAAA, class =3D IN
;; Querying server (# 1) address =3D = 127.0.0.1
;; new DG socket
;; got answer:
;; = ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: = 45481

It's not clear to me what's going on; I don't see any of = those function
calls like res_nquerydomain in the code.
Can = someone tell me what those are?

And does the above point a finger = anywhere in particular?

hostname is "ns.dreamchaser.org", set in = rc.conf

dig @127.0.0.1 ns.dreamchaser.org
dig = ns.dreamchaser.org
nslookup dreamchaser.org
nslookup = ns.dreamchaser.org

all successfully return the appropriate = ip.

Thanks,

Gary

= --Apple-Mail=_E54FCDCF-8EDE-48F8-B2D3-C2611D36D3A2--