Support SPF and DMARC Monitoring for Subdomains

Currently, Hudu does not perform SPF or DMARC monitoring for subdomains, it only pulls from the domain. We’d like to request support for subdomain-level monitoring.

Ideally, Hudu should:

Check the subdomain directly for SPF, DMARC, DKIM, and TXT records.

For DMARC, if no subdomain record exists, fallback to the base/root domain’s DMARC record.