title: This message does not have authentication information or fails to 550-5.7.26 pass authentication checks
body: <p>I have problem with google and I can't send email to any gmail or Gsuite emails
  got report from mail server log</p>
  <pre><code>Feb 17 12:16:30 server postfix/smtp[19451]: 853E35E55A: to=&lt;xxx@gmail.com&gt;, 
  relay=aspmx.l.google.com[209.85.144.27]:25, delay=0.38, delays=0.05/0/0.15/0.17, 
  dsn=5.7.26, status=bounced (host aspmx.l.google.com[209.85.144.27] said: 550-5.7.26 This 
  message does not have authentication information or fails to 550-5.7.26 pass 
  authentication checks. To best protect our users from spam, the 550-5.7.26 message has 
  been blocked. Please visit 550-5.7.26  
  https://support.google.com/mail/answer/81126#authentication for more 550 5.7.26 
  information. w19si7586061qkp.34 - gsmtp (in reply to end of DATA command))
  </code></pre>
  <p>and I'm not blacklisted in any spam website ( I do check in most of website which provide blocklist checker)</p>
  <p>also I didn't have any problem in SPF or DKIM or DMARC</p>
  <p>here is SPF checker
  <a href="https://prnt.sc/26xomwz" rel="noreferrer">https://prnt.sc/26xomwz</a></p>
  <p>here is DKIM checker
  <a href="https://prnt.sc/26xoodg" rel="noreferrer">https://prnt.sc/26xoodg</a></p>
  <p>here is DMARC checker
  <a href="https://prnt.sc/26xopgo" rel="noreferrer">https://prnt.sc/26xopgo</a></p>
  <p>here is DMARC report from google</p>
  <pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; ?&gt;
  &lt;feedback&gt;
    &lt;report_metadata&gt;
      &lt;org_name&gt;google.com&lt;/org_name&gt;
      &lt;email&gt;noreply-dmarc-support@google.com&lt;/email&gt;
      &lt;extra_contact_info&gt;https://support.google.com/a/answer/2466580&lt;/extra_contact_info&gt;
      &lt;report_id&gt;10254909114662490508&lt;/report_id&gt;
      &lt;date_range&gt;
        &lt;begin&gt;1644969600&lt;/begin&gt;
        &lt;end&gt;1645055999&lt;/end&gt;
      &lt;/date_range&gt;
    &lt;/report_metadata&gt;
    &lt;policy_published&gt;
      &lt;domain&gt;cbs-canon.com&lt;/domain&gt;
      &lt;adkim&gt;r&lt;/adkim&gt;
      &lt;aspf&gt;r&lt;/aspf&gt;
      &lt;p&gt;quarantine&lt;/p&gt;
      &lt;sp&gt;quarantine&lt;/sp&gt;
      &lt;pct&gt;100&lt;/pct&gt;
    &lt;/policy_published&gt;
    &lt;record&gt;
      &lt;row&gt;
        &lt;source_ip&gt;5.161.45.186&lt;/source_ip&gt;
        &lt;count&gt;187&lt;/count&gt;
        &lt;policy_evaluated&gt;
          &lt;disposition&gt;quarantine&lt;/disposition&gt;
          &lt;dkim&gt;fail&lt;/dkim&gt;
          &lt;spf&gt;fail&lt;/spf&gt;
        &lt;/policy_evaluated&gt;
      &lt;/row&gt;
      &lt;identifiers&gt;
        &lt;header_from&gt;server.cbs-canon.com&lt;/header_from&gt;
      &lt;/identifiers&gt;
      &lt;auth_results&gt;
        &lt;dkim&gt;
          &lt;domain&gt;server.cbs-canon.com&lt;/domain&gt;
          &lt;result&gt;fail&lt;/result&gt;
          &lt;selector&gt;default&lt;/selector&gt;
        &lt;/dkim&gt;
        &lt;spf&gt;
          &lt;domain&gt;server.cbs-canon.com&lt;/domain&gt;
          &lt;result&gt;none&lt;/result&gt;
        &lt;/spf&gt;
      &lt;/auth_results&gt;
    &lt;/record&gt;
    &lt;record&gt;
      &lt;row&gt;
        &lt;source_ip&gt;5.161.45.186&lt;/source_ip&gt;
        &lt;count&gt;1&lt;/count&gt;
        &lt;policy_evaluated&gt;
          &lt;disposition&gt;none&lt;/disposition&gt;
          &lt;dkim&gt;pass&lt;/dkim&gt;
          &lt;spf&gt;pass&lt;/spf&gt;
        &lt;/policy_evaluated&gt;
      &lt;/row&gt;
      &lt;identifiers&gt;
        &lt;header_from&gt;cbs-canon.com&lt;/header_from&gt;
      &lt;/identifiers&gt;
      &lt;auth_results&gt;
        &lt;dkim&gt;
          &lt;domain&gt;cbs-canon.com&lt;/domain&gt;
          &lt;result&gt;pass&lt;/result&gt;
          &lt;selector&gt;default&lt;/selector&gt;
        &lt;/dkim&gt;
        &lt;spf&gt;
          &lt;domain&gt;cbs-canon.com&lt;/domain&gt;
          &lt;result&gt;pass&lt;/result&gt;
        &lt;/spf&gt;
      &lt;/auth_results&gt;
    &lt;/record&gt;
  &lt;/feedback&gt;
  </code></pre>
  <p>how can I know where is the problem</p>