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Email Authentication Report for linkedin.com

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

A

linkedin.com

90 out of 100

Scanned: Jul 6, 2026, 1:17 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
DKIMDKIM key is only 1024-bit.
-5
Your score
90

  • 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 lookups2 / 10
    v=spf1 ip4:199.101.162.0/25 ip4:108.174.3.0/24 ip4:108.174.6.0/24 ip4:108.174.0.0/24 ip6:2620:109:c00d:104::/64 ip6:2620:109:c006:104::/64 ip6:2620:109:c003:104::/64 ip6:2620:119:50c0:207::/64 ip4:199.101.161.130 mx mx:docusign.net ~all
    allQualifier
    ~

  • DKIM

    -5Warning
    • -5

      DKIM key is only 1024-bit.

      A 1024-bit RSA key is below the modern standard of 2048-bit and is easier to break. Some receivers already ignore keys this short.

      How to fix: Rotate to a 2048-bit key with your email provider and publish the new public key.

    selectors
    google
    keyType
    rsa
    keyBits
    1024
    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:d@rua.agari.com,mailto:yfy3q-9359@rua.dmarc.emailanalyst.com; ruf=mailto:d@ruf.agari.com
    policy
    reject
    subdomainPolicy
    reject
    pct
    100
    rua
    mailto:d@rua.agari.com,mailto:yfy3q-9359@rua.dmarc.emailanalyst.com
    adkim
    r
    aspf
    r

  • MX

    Pass

    • MX is configured (4 mail server(s)).

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

    mxHosts
    mail-c.linkedin.com (10), mail-d.linkedin.com (10), mail-a.linkedin.com (10), mail.linkedin.com (20)
    mxCount
    4

  • 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
    108.174.3.215, 108.174.6.215, 108.174.0.215
    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

    Pass

    • TLS reporting is enabled.

      Your TLS-RPT record is valid, so receivers can report TLS delivery failures to you.

    v=TLSRPTv1; rua=mailto:tlsreports@linkedin.com
    rua
    mailto:tlsreports@linkedin.com

  • BIMI

    Pass

    • BIMI is set up.

      Your BIMI record is valid, DMARC is enforced, and a Verified Mark Certificate is present, so supporting inboxes can show your logo.

    v=BIMI1; l=https://media.licdn.com/media/AAYQAQQhAAgAAQAAAAAAABrLiVuNIZ3fRKGlFSn4hGZubg.svg; a=https://media.licdn.com/media/AAYABAQhAAgAAQAAAAAAAYFI0DP_wvHFSv6mYduMZuEwSA.pem;
    logo
    https://media.licdn.com/media/AAYQAQQhAAgAAQAAAAAAABrLiVuNIZ3fRKGlFSn4hGZubg.svg
    vmc
    https://media.licdn.com/media/AAYABAQhAAgAAQAAAAAAAYFI0DP_wvHFSv6mYduMZuEwSA.pem

Here is how linkedin.com 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.

How to read the grade

Everything above is computed live from the records linkedin.com publishes right now. A strong result means SPF authorizes the correct senders, DKIM signs outgoing mail with a valid key, and DMARC sets a policy that instructs receivers on how to handle failures. Where a check is weak, the report shows the exact record involved so the gap is easy to understand.

About this report

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

Want the same breakdown for your own domain? Run a free scan to get an identical grade along with the exact records to fix anything that is weak.

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Guides to fix common issues

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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.