Post #1943890
2025-11-25 23:42 UTC
@donburi @nuintari Agreed on the Null MX, but DKIM needs a selector, so it doesn’t make sense to publish it directly to the zone.
Replies (1)
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@donburi@universeodon.com 2025-11-26 09:22
@jornane @nuintari I was going by https://www.mailhardener.com/kb/hardening-unused-domains "For domains that should not send email, it is considered good practice to publish a revocation record as a wildcard under the _domainkey label (so *._domainkey.yourdomain.com)."