Remove webdav.pez.sh DNS record (WebDAV replaced by Nextcloud AIO on cloud.pez.sh)
Remove alertmanager.pez.sh DNS record and Caddyfile block (Alertmanager not running on london-a)
Remove status-https HTTPS record pointing to old statuspage.io (status.pez.sh is self-hosted on helsinki-a)
Remove commented-out WebDAV block from Caddyfile
Remove empty section headers for decommissioned hosts (london-c, copenhagen-b, copenhagen-c)
Closes PESO-102
Stale A records removed:
- chimera.pez.sh → 13.43.223.167 (AWS IP reassigned, now serving unrelated site)
- gopher.pez.sh → 83.94.248.182 (unreachable on all ports)
- 0o9lix.ecp-dev.pez.sh → 0.0.0.0 (placeholder, never valid)
Stale TXT verification records removed:
- protonmail-verification (mail is self-hosted now, not ProtonMail)
- keybase-site-verification (Keybase is effectively dead)
- MS=ms99554544 (Microsoft domain verification, no active MS services)
- google-site-verification (no active Google services using this domain)
- apple-domain (no longer using Apple services after GrapheneOS switch)
PESO-97
PTR record for 83.94.248.182 (copenhagen-a) incorrectly claimed to be
mail.pez.sh. PTR records in a forward DNS zone don't control actual
reverse DNS (that's managed by the ISP), and this record was misleading.
Also removed the mail-ptr record which had a similarly misplaced
in-addr.arpa reference in the forward zone.
Fixes PESO-76
* update SPF record: replace protonmail with poste.io mail server
PESO-77
- replace include:_spf.protonmail.ch with ip4:167.235.134.154 and ip6:2a01:4f8:1c1e:9c53::1 (nuremberg-a / mail.pez.sh)
- tighten from ~all (softfail) to -all (hardfail)
* tighten DMARC policy from p=none to p=quarantine
PESO-78
- enforce DMARC with p=quarantine (failed messages get quarantined)
- add adkim=r and aspf=r for relaxed DKIM/SPF alignment
