https://totalwebtool.com/mini-tools/spf-dmarc-checker
SPF/DMARC Checker | TotalWebTool
Check whether a domain publishes SPF and DMARC DNS TXT records so legitimate mail is easier to authenticate and protect from spoofing.
dmarc checkerspf
https://totalwebtool.com/mini-tools/mx-records-check
MX Records Check | TotalWebTool
Resolve MX records for a domain and optionally probe each mail exchanger for a live SMTP banner.
mx recordscheck