Apex, subdomain, or URL. We figure it out.

Results for

dropbox.com

Email authentication

Email authentication is well configured.

  • 3Pass
  • 0Warning
  • 0Fail
  • 3Not set

SPF

Pass

Authorizes which servers may send mail for the domain

SPF is published and within limits.

Policy
~all
DNS lookups
7 / 10
  • Ends in ~all (softfail): unauthorized senders are marked, not rejected.
  • Uses 7 of 10 allowed DNS lookups.
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 ~all

DKIM

Not set

Cryptographically signs outgoing mail (best-effort selector probe)

No DKIM key found for common selectors.

Selectors probed
32
  • DKIM selectors cannot be enumerated from DNS, so this only probes well-known selectors. A negative result is not proof that DKIM is missing.

DMARC

Pass

Tells receivers what to do with mail that fails SPF and DKIM

DMARC is enforced.

Policy
p=reject
Coverage
100%
  • Policy p=reject: failing mail is rejected outright.
  • Aggregate reports (rua) are configured.
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected],mailto:[email protected]

MTA-STS

Not set

Enforces TLS for inbound mail and prevents downgrade attacks

No MTA-STS policy. Inbound mail can be delivered without TLS.

TLS-RPT

Not set

Receives reports about TLS delivery failures

No TLS-RPT record. You get no reports about failed TLS delivery.

BIMI

Pass

Displays your verified brand logo in supporting inboxes

BIMI is published.

Logo
https://cfl.dropboxstatic.com/static/metaserver/static/images/emails/bimi/order_400664024_logo.svg
VMC
https://cfl.dropboxstatic.com/static/metaserver/static/images/emails/bimi/dropbox_inc.pem
  • A logo (l=) is published.
  • A Verified Mark Certificate (a=) is referenced.
v=BIMI1;l=https://cfl.dropboxstatic.com/static/metaserver/static/images/emails/bimi/order_400664024_logo.svg;a=https://cfl.dropboxstatic.com/static/metaserver/static/images/emails/bimi/dropbox_inc.pem

Checks query live DNS over Cloudflare and the public MTA-STS policy endpoint. DKIM selectors cannot be listed from DNS, so DKIM detection probes common provider selectors only.