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

Results for

freecodecamp.org

Email authentication

Email authentication is well configured.

  • 4Pass
  • 0Warning
  • 0Fail
  • 2Not set

SPF

Pass

Authorizes which servers may send mail for the domain

SPF is published and within limits.

Policy
-all
DNS lookups
3 / 10
  • Ends in -all (hardfail): unauthorized senders are rejected.
  • Uses 3 of 10 allowed DNS lookups.
v=spf1 mx include:_spf.google.com include:amazonses.com -all

DKIM

Pass

Cryptographically signs outgoing mail (best-effort selector probe)

DKIM key published for 1 known selector.

Selectors
google
  • Found a DKIM key at google._domainkey.freecodecamp.org

DMARC

Pass

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

DMARC is enforced.

Policy
p=quarantine
Subdomains
sp=reject
Coverage
100%
  • Policy p=quarantine: failing mail is sent to spam.
  • Aggregate reports (rua) are configured.
v=DMARC1; p=quarantine; rua=mailto:[email protected]; sp=reject; fo=1:d:s; adkim=s;

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://cdn.freecodecamp.org/platform/universal/fcc_secondary_small.svg
  • A logo (l=) is published.
v=BIMI1;l=https://cdn.freecodecamp.org/platform/universal/fcc_secondary_small.svg

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.