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    <p>Hi,</p>
    <p>Just found out that Postfix does not implement/support the
      AUTH=sender parameter.</p>
    <p>So, back to Dovecot, can we use variables in the <br>
    </p>
    <p>submission_relay_user =<br>
      submission_relay_password =<br>
    </p>
    <p>then Dovecot will forward the username and password information
      of the current user to the Postfix submission service for
      authentication?</p>
    <p>Best regards,</p>
    <p>Jacky<br>
    </p>
    <p><br>
      <br>
    </p>
    <div class="moz-cite-prefix">On 10/1/2019 10:46 AM, Jacky wrote:<br>
    </div>
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      cite="mid:b79ba902-e3f9-ec1c-abed-0bc433674ae8@jesstech.com">
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      <p>Hi Gerald and Odhiambo Washington,</p>
      <p>Thank you for your suggestions and will try them out.</p>
      <p>Best regards,<br>
      </p>
      <p>Jacky<br>
      </p>
      <div class="moz-cite-prefix">On 9/1/2019 6:38 PM, Odhiambo
        Washington wrote:<br>
      </div>
      <blockquote type="cite"
cite="mid:CAAdA2WOQ_Uc9ZLMsoBEt2RAxJviQjojoeLZE79LsyQZBG4iN0w@mail.gmail.com">
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              <div class="gmail_quote">
                <div dir="ltr">On Wed, 9 Jan 2019 at 13:09, Jacky <<a
                    href="mailto:jacky@jesstech.com"
                    moz-do-not-send="true">jacky@jesstech.com</a>>
                  wrote:<br>
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                <blockquote class="gmail_quote" style="margin:0px 0px
                  0px 0.8ex;border-left:1px solid
                  rgb(204,204,204);padding-left:1ex">Hi Gerald,<br>
                  <br>
                  in my postfix/<a href="http://main.cf"
                    rel="noreferrer" target="_blank"
                    moz-do-not-send="true">main.cf</a><br>
                  <br>
                  smtpd_sasl_authenticated_header = yes<br>
                  smtpd_sasl_security_options = noanonymous<br>
                  smtpd_sasl_local_domain = $myhostname<br>
                  smtpd_sasl_type = dovecot<br>
                  smtpd_sasl_path = /var/run/dovecot/auth-client<br>
                  broken_sasl_auth_clients = yes<br>
                  <br>
                  I am already using dovecot for SASL<br>
                  <br>
                  The dovecot submission service authenticates users and
                  already added the <br>
                  AUTH= parameter in the MAIL FROM<br>
                  <br>
                  MAIL FROM:<<a href="mailto:jacky@xxx.com"
                    target="_blank" moz-do-not-send="true">jacky@xxx.com</a>>
                  AUTH=<a href="mailto:jacky@xxx.com" target="_blank"
                    moz-do-not-send="true">jacky@xxx.com</a> SIZE=1430<br>
                  <br>
                  But, it seems that postfix does not accept the AUTH=
                  parameter and <br>
                  reject the sender as no logged in.<br>
                  <br>
                  <br>
                  Best regards,<br>
                  <br>
                  Jacky<br>
                  <br>
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              <div><br>
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              <div>Hi Jacky,</div>
              <div><br>
              </div>
              <div>Your question belongs to postfix mailinng list.</div>
              <div><br>
              </div>
              <div>Anyway, the last time I was playing with postfix (I
                am an Exim user normally), I had to check that:</div>
              <div>smtpd_sasl_path = /var/run/dovecot/auth-client  <br>
              </div>
              <div><br>
              </div>
              <div>..the socket is readable by the postfix user:</div>
              <div><br>
              </div>
              <div>So, check 10-master.conf for the socket. Something
                like:</div>
              <div><br>
              </div>
              <div>
                <div># Postfix smtp-auth</div>
                <div>  unix_listener  var/run/dovecot/auth-client  {</div>
                <div>    mode = 0666</div>
                <div>  }</div>
              </div>
              <div><br>
              </div>
              <div>Restart dovecot and see...</div>
              <div><br>
              </div>
              <div>You can read the <a
                  href="https://wiki.dovecot.org/HowTo/PostfixAndDovecotSASL"
                  moz-do-not-send="true">https://wiki.dovecot.org/HowTo/PostfixAndDovecotSASL</a></div>
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              <div><br>
              </div>
              -- <br>
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                      <div>Best regards,<br>
                        Odhiambo WASHINGTON,<br>
                        Nairobi,KE<br>
                        +254 7 3200 0004/+254 7 2274 3223<br>
                        "<span style="font-size:12.8px">Oh, the cruft.</span><span
                          style="font-size:12.8px">", </span><span
                          style="font-size:12.8px">grep ^[^#] :-)</span></div>
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