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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 23:15 UTC · 7 checks · public report
Solid base — one policy step remains.
dropbox.com publishes an enforcing DMARC policy, so mail that forges its domain is quarantined or rejected at the recipient.
v=spf1 ip4:45.58.64.0/20 ip4:185.45.8.0/22 ip4:162.125.0.0/16 ip4:199.47.216.0/22 ip4:108.160.160.0/20 ip4:205.189.0.0/24 ip4:160.34.15.16/28 ip4:52.5.134.202/32 ip4:205.220.162.87/32 ip4:205.220.174.83/32 ip4:167.89.98.146/32 ip4:167.89.89.46/32 ip4:167.89.96.134/32 ip4:159.183.109.97/32 ip4:149.72.220.85/32 ip4:159.183.15.144/32 ip4:159.183.2.51/32 ip4:159.183.2.58/32 ip6:2620:c6:8000::/48 include:amazonses.com include:_spf.google.com include:mail.zendesk.com include:mktomail.com include:rp.oracleemaildelivery.com exists:%{i}._spf.mta.salesforce.com ~allEdit your SPF record at Amazon Route 53 — step-by-step guide.
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