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Email Authentication Report for wikipedia.org

A live look at how wikipedia.org configures SPF, DKIM, DMARC, and transport security, with the grade explained.

A+

wikipedia.org

95 out of 100

Scanned: Jul 6, 2026, 1:25 PM

Why this score

The score starts at 100. Every issue below subtracts points based on how much it hurts your deliverability or lets someone spoof you.

Starting score
100
SPFEnds with ~all (softfail).
-5
Your score
95

  • SPF

    -5Pass
    • -5

      Ends with ~all (softfail).

      A softfail asks receivers to accept mail from unlisted senders but flag it, so spoofed messages can still reach the inbox.

      How to fix: Move to -all after confirming that all of your senders are included, so unauthorized mail is rejected.

    DNS lookups1 / 10
    v=spf1 include:_cidrs.wikimedia.org ~all
    allQualifier
    ~

  • DKIM

    Warning

    • No DKIM record found at common selectors.

      DKIM selectors cannot be listed from DNS, so we checked the widely used ones and found none for wikipedia.org. Your mail may still sign with a custom selector, but if it does not, receivers cannot confirm your messages were not tampered with in transit.

      How to fix: Enable DKIM signing in your email provider, then publish the selector TXT record it gives you at <selector>._domainkey.wikipedia.org.

    selectorsChecked
    47
    Read the DKIM guide

  • DMARC

    Pass

    • Policy is p=reject (strongest).

      Reject tells receivers to refuse any mail that fails authentication, the strongest protection against spoofing.

    • Aggregate reporting is enabled.

      A rua address is set, so you receive daily reports showing every source that sends as your domain.

    • DMARC is present and enforced.

      A valid DMARC record was found with an enforcing policy, so receivers act on mail that fails authentication.

    v=DMARC1; p=reject; rua=mailto:dmarc-rua@wikimedia.org;
    policy
    reject
    subdomainPolicy
    reject
    pct
    100
    rua
    mailto:dmarc-rua@wikimedia.org
    adkim
    r
    aspf
    r

  • MX

    Pass

    • MX is configured (2 mail server(s)).

      Your domain has MX records and every listed mail server resolves to an IP address, so it can receive mail.

    mxHosts
    mx-in2001.wikimedia.org (10), mx-in1001.wikimedia.org (10)
    mxCount
    2

  • Blacklist

    Pass

    • Not on any checked blocklist.

      Your mail server IPs were not found on the public blocklists we checked. Reputation can change, so it is worth monitoring over time.

    ipsChecked
    208.80.153.75, 208.80.155.102
    blocklists
    bl.spamcop.net, dnsbl.sorbs.net

Optional enhancements

Advanced, nice-to-have features. Setting these up (or not) does not change your grade.

  • DNSSEC

    Optional

    • DNSSEC is not enabled.

      DNSSEC is optional, but it protects against DNS spoofing by letting resolvers confirm your records are authentic. Most domains still do not use it.

      How to fix: If your DNS provider and registrar support it, enable DNSSEC to protect your domain from DNS tampering.

  • MTA-STS

    Optional

    • MTA-STS is not set up.

      MTA-STS is optional but recommended. It tells sending servers to require TLS when delivering mail to you, which blocks downgrade and man-in-the-middle attacks on your inbound mail.

      How to fix: Publish a _mta-sts TXT record and host a policy at https://mta-sts.<yourdomain>/.well-known/mta-sts.txt with mode enforce.

    Read the MTA-STS guide

  • TLS-RPT

    Optional

    • TLS reporting (TLS-RPT) is not set up.

      TLS-RPT is optional. It asks receivers to send you reports when TLS fails while delivering your mail, which is how you catch MTA-STS or certificate problems before they hurt delivery.

      How to fix: Publish a _smtp._tls TXT record with v=TLSRPTv1 and a rua address, for example rua=mailto:tlsrpt@yourdomain.

    Read the TLS-RPT guide

  • BIMI

    Optional

    • BIMI is not set up.

      BIMI is optional. It shows your logo next to your emails in supporting inboxes, but it needs an enforced DMARC policy and, for Gmail and Apple Mail, a Verified Mark Certificate (VMC).

      How to fix: With DMARC at quarantine or reject, publish a BIMI TXT record at default._bimi pointing to a square SVG logo, and add a VMC to display it in Gmail and Apple Mail.

    Read the BIMI guide

Here is how wikipedia.org has configured SPF, DKIM, and DMARC for its outgoing mail. For a widely read domain, well-formed authentication records help newsletters and notifications reach readers reliably.

The checks behind the grade

The score above reflects the public DNS records for wikipedia.org at the time of the scan. SPF declares which servers may send mail for the domain, DKIM signs each message so tampering can be detected, and DMARC combines both with a published policy. Additional transport-security records raise the grade by securing the delivery path between mail servers.

About this report

This report is generated from publicly available DNS records for wikipedia.org and is provided for informational and educational purposes only. SPFWise is not affiliated with, endorsed by, or connected to the owner of wikipedia.org. The records shown are the same ones any mail server can query, and the grade updates automatically as they change.

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Guides to fix common issues

Email Compliance: CAN-SPAM, GDPR and CASL Basics

A plain-English guide to the three laws that govern commercial email: CAN-SPAM in the US, GDPR in the EU, and CASL in Canada, covering consent, identification, unsubscribe, penalties, and how compliance overlaps with deliverability.

Dedicated vs Shared IP for Sending Email

A practical guide to choosing between a dedicated and a shared sending IP, weighing volume, reputation control, warmup burden, and cost, with a clear decision path.

Phishing vs Spoofing: What Is the Difference?

Spoofing is the technique of forging a sender identity; phishing is the fraud it enables. This guide explains the difference, how they overlap, and which defenses stop each.