Parked and Inactive Domains: Are SPF, DKIM, and DMARC Still Necessary?
Parked and inactive domains are easy to forget, yet attackers can still abuse them for phishing, domain spoofing, and brand impersonation. If a domain has no email authentication records at all, nothing stops someone else from sending mail that looks like it comes from you. Here i explain what SPF, DMARC, MX, and DKIM records you should publish for a parked domain, and why each one closes a specific gap attackers would otherwise use.