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Check a domain and its mail
Expiry, registrant, SPF, DMARC, nameservers. The same things I look at before touching anything, on your domain, now.
What it looks at
- Expiry and registrant
When it expires and whose name it is registered in. - SPF
Whether it exists, whether there is exactly one, and how many of the ten allowed lookups it burns. - DMARC
Whether it exists, and whether it actually tells recipients to reject the fakes. - Mail and nameservers
Where the mail goes, who answers for the domain, whether Cloudflare is in front.
DKIM is missing from the results for a reason: from outside, without knowing the selector, it cannot be verified. Anyone who says otherwise is guessing.