TZUTC: -0800
MSGID: 59014.sync_sys@1:103/705 2d9b02b9
PID: Synchronet 3.21a-Linux master/88b423313 Sep 29 2025 GCC 12.2.0
TID: SBBSecho 3.32-Linux master/c3429c903 Dec 06 2025 GCC 12.2.0
BBSID: VERT
CHRS: UTF-8 4
FORMAT: flowed
open https://gitlab.synchro.net/main/sbbs/-/issues/1028

sbl.spamhous.org will return 127.255.255.254 to indicate an invalid query,
which Synchronet interprets as a spam indication:

https://administrator.de/info/spamhaus-dnsbl-return-codes-techni
al-update-656572.html

Also, something seems to be awry with IPv6 lookups since I get this:
`X-DNSBL: 2610:1c1:1:606c::19:2 is listed on sbl.spamhaus.org       (see
http://www.spamhaus.org/) as 50.16.218.27`, but a manualy lookup shows
NXDOMAIN:

```
bbsdev@bbsdev:~/sbbs/ctrl % host 2.0.0.0.9.1.0.0.0.0.0.0.0.0.0.0
c.6.0.6.1.0.0.0.1.c.1.0.0.1.6.2.sbl.spamhaus.org
Host 2.0.0.0.9.1.0.0.0.0.0.0.0.0.0.0.c.6.0.6.1.0.0.0.1.c.1.0.0.1
6.2.sbl.spamhaus.org not found: 3(NXDOMAIN)
```
--- SBBSecho 3.32-Linux
 * Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)
SEEN-BY: 103/13 705 105/81 106/201 124/5016 128/187 129/14 153/757
SEEN-BY: 153/7715 154/10 30 110 203/0 218/700 221/0 226/30 227/114
SEEN-BY: 229/110 112 134 206 317 400 426 428 470 700 705 240/1120
SEEN-BY: 240/5832 263/1 266/512 280/464 5003 5006 291/111 292/8125
SEEN-BY: 301/1 320/219 322/757 341/66 234 342/200 396/45 423/120 460/58
SEEN-BY: 460/256 1124 633/280 712/848 770/1 902/26 5020/400 8912 5054/30
SEEN-BY: 5075/35
PATH: 103/705 280/464 460/58 229/426