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Checking SPF, DMARC, DKIM, MX, DNS, blacklists and domain & SSL expiry. A domain we haven't scanned before takes a few seconds — hang tight.
Checking SPF, DMARC, DKIM, MX, DNS, blacklists and domain & SSL expiry. A domain we haven't scanned before takes a few seconds — hang tight.
Scanned Aug 20, 2026 02:37 UTC · 7 checks · public report
One finding blocks deliverability.
vulnweb.com has no enforceable DMARC policy, so mail that forges its domain is not blocked at the recipient.
Your domain does not have a DMARC policy set up, which means receiving mail servers have no clear instructions for what to do with messages that claim to come from your domain. This matters because it makes your domain easier to impersonate in phishing and spoofing attacks, and it also reduces your control and visibility over email delivery. The fix is to publish a DMARC record in your DNS for the domain.
_dmarc · Record type: TXT · TTL: 3600v=DMARC1; p=quarantine; np=rejectApply this at Amazon Route 53 — step-by-step guide.
Your email protection is set to a softer SPF mode, which means other mail servers are told to treat unexpected senders as suspicious but still accept them. This is weaker than a strict setting, so it gives spoofed mail a better chance of getting through or being handled inconsistently. The fix is to change the SPF policy to the stricter “fail” mode, but only after you’ve confirmed every legitimate sender is already listed.
v=spf1 ~allEdit your SPF record at Amazon Route 53 — .
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Publish your DKIM record at Amazon Route 53 — step-by-step guide.