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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 Jul 29, 2026 14:43 UTC · 7 checks · public report
Solid base — three policy steps remain.
arm.com publishes DMARC with p=none — spoofed mail is monitored but not blocked.
v=spf1 include:_spf-a.arm.com include:_spf-b.arm.com include:_spf-c.arm.com -allv=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none_dmarc · Record type: TXT · TTL: 3600One send: the full report — every finding and fix — lands in your inbox, with a free account waiting. Opening it signs you in and starts a 14-day Monitor trial. No card, and you can unsubscribe in one click.
Domain owner? Re-scan any time — or email [email protected] to have this page removed.
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=noneThis means your email signature key is smaller than recommended, so it is easier to break than a modern one. If an attacker can forge that signature, your messages may be more likely to be spoofed or tampered with. The fix is to replace this DKIM selector with a stronger, modern key size and then update the DNS entry for that selector.