pki.goog

pki.goog · Last checked 2026-10-04 02:05 UTC

pki.goog

Good, with 2 things to fix

pki.goog scored 88/100 (grade B). The main issues are no DKIM key found for the common selectors and MX: DNS lookup budget exhausted, plus 1 more. Detected senders: Google Workspace.

Checked 2026-10-04 02:05 UTC · fresh check

2 passed2 need attention0 failing4 for informationDetected senders: Google Workspace

Diagnosis notes

  • Warning: DNS lookup budget exhausted

    This diagnosis stopped sending DNS queries after 150 queries. Checks that needed more lookups report their remaining results as unknown; the domain's records may be unusually large or slow to answer.

All checks

MXCan servers find your inbox?Only one MX hostInfo
  • Info: Only one MX host

    All mail for pki.goog goes to smtp.google.com. Most hosted providers make that one name highly available; if you run your own server, consider a backup MX.

SPFWho may send as you?No issues foundPass

Nothing to report.

DKIMAre your emails signed?No DKIM key found for the common selectorsNeeds attention
  • Warning: No DKIM key found for the common selectors

    None of the 47 selectors probed under pki.goog publish a DKIM key. DNS cannot list selectors, so a key under a custom selector may exist: find the s= value in the DKIM-Signature header of a message you sent and check that selector. If DKIM is not set up, enable it at each service that sends mail for pki.goog.

DMARCWhat happens to fakes?No issues foundPass

Nothing to report.

AlignmentDoes it match your From?SPF alignment is unknownInfo
  • Info: SPF alignment is unknown

    The SPF record of pki.goog authorizes no sender (no +ip4, +ip6, +a, +mx, +exists or +ptr term, include of a record that has one, or +all before all), so SPF never passes and cannot align. That is correct for a domain that sends no mail; otherwise DMARC depends on DKIM alone.

BIMICan inboxes show your logo?No BIMI recordInfo
  • Info: No BIMI record

    No BIMI record at default._bimi.pki.goog. BIMI is optional: it shows your logo next to your mail in supporting inboxes once DMARC is enforced.

    How to fix this
MTA-STSIs mail to you encrypted?Could not look up the MTA-STS recordNeeds attention
  • Warning: Could not look up the MTA-STS record

    The TXT query for _mta-sts.pki.goog returned TIMEOUT, so MTA-STS status is unknown. Try again later.

TLS-RPTWill you hear about failures?No TLS-RPT recordInfo
  • Info: No TLS-RPT record

    No TLS reporting record at _smtp._tls.pki.goog. TLS-RPT (RFC 8460) tells senders where to send daily reports about failed encrypted deliveries to you.

    How to fix this

How to fix it

Enable DKIM for Google Workspaceinstruction

Google Workspace generates the DKIM key for each account, so the exact record must come from Google Workspace. Without DKIM, mail it sends for pki.goog cannot pass DMARC through DKIM.

Applies to: google._domainkey.pki.goog

  1. In Google Workspace, enable DKIM signing for pki.goog: Generate the key in Admin console > Apps > Gmail > Authenticate email, then publish the TXT record shown there. Publish exactly the record Google Workspace shows (TXT or CNAME) at the host name it gives, then turn signing on. Instructions: https://support.google.com/a/answer/174124

Set up a TLS report addressinstruction

Sending servers will report TLS failures when delivering to pki.goog, which you need before enforcing MTA-STS. The address must accept TLS reports; a DMARC report address does not necessarily do so.

Applies to: _smtp._tls.pki.goog

  1. Pick an address that will receive TLS reports: a mailbox you read (for example tls-reports@pki.goog, created first) or a TLS reporting service. 2. Publish a TXT record at _smtp._tls.pki.goog with the value v=TLSRPTv1; rua=mailto:<that address>.

Prepare BIMIinstruction

BIMI shows your logo next to messages in supporting inboxes, but only for mail that passes DMARC under an enforced policy.

Applies to: default._bimi.pki.goog

  1. Enforce DMARC first: p=quarantine or p=reject at 100% (no pct below 100). 2. Convert your logo to an SVG Tiny PS file and host it over HTTPS, for example https://pki.goog/bimi/logo.svg. 3. For Gmail and Apple Mail, obtain a VMC or CMC certificate for the logo. 4. Publish a TXT record at default._bimi.pki.goog with v=BIMI1, l= set to the logo URL and a= set to the certificate URL.