Could be relevant for both ITDR and Managed Security Awareness. Possibility to add all customer domains and track their security related status. Example in table form show MX Record/MX Record parked, SPF record/Health, Common DKIM records(or DKIM Parked), DMARC policy status, MTA-STS Status, etc. With the main focus of overview of domain security. Best practice is to register all relevant domains for company/trademark names (to avoid threat actor registering these domains). Only Mail Enabled domains should have valid MX records, SPF, DKIM and DMARC. All other domains should have mail parking record. @ MX 0 . @ TXT v=spf1 -all *@ TXT v=spf1 -all *._ domainkey.example.com TXT v=DKIM1; p= _ dmarc.example.com TXT v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s This could identify mail enabled domains, and parked/secured domains. This list could also be a basis for a Dark Web Monitor feature to check for credential leaks and forum chatter.