What the report covers
Hosting. Which server or network serves the website, from reverse DNS and IP ownership.
DNS records. A, AAAA, MX, TXT, CNAME, NS, SOA and common SRV names.
SPF and DMARC. Syntax, the 10-lookup limit across every include, and policy strength.
Mail servers and SSL. MX reverse DNS, plus certificate issuer, expiry and covered names.