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    <p>Also, you can use</p>
    <p>first_valid_uid = <number></p>
    <p>last_valid_uid = <number></p>
    <p>to limit which users are considered valid.</p>
    <p>Aki<br>
    </p>
    <div class="moz-cite-prefix">On 17.2.2020 12.50, Sami Ketola wrote:<br>
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    <blockquote type="cite"
      cite="mid:4377C21C-8238-4134-8F3A-869B1088C654@Open-Xchange.com">
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      Hi,
      <div class=""><br class="">
      </div>
      <div class="">how about switching to use autoexpunge?</div>
      <div class=""><br class="">
      </div>
      <div class=""><a href="https://wiki.dovecot.org/MailboxSettings"
          class="" moz-do-not-send="true">https://wiki.dovecot.org/MailboxSettings</a></div>
      <div class=""><br class="">
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      <div class="">Sami</div>
      <div class=""><br class="">
        <div><br class="">
          <blockquote type="cite" class="">
            <div class="">On 17 Feb 2020, at 11.01, Philip Colmer <<a
                href="mailto:philip.colmer@linaro.org" class=""
                moz-do-not-send="true">philip.colmer@linaro.org</a>>
              wrote:</div>
            <br class="Apple-interchange-newline">
            <div class="">
              <div class="">We're using dovecot on a help desk ticketing
                system. The system<br class="">
                doesn't perform any cleanup of IMAP mailboxes so we have
                a regular<br class="">
                cronjob doing this:<br class="">
                <br class="">
                /usr/bin/doveadm flags add -A '\Deleted' SEEN SENTBEFORE
                12w &&<br class="">
                /usr/bin/doveadm expunge -A DELETED MAILBOX '*'<br
                  class="">
                <br class="">
                Recently, doveadm has been reporting this:<br class="">
                <br class="">
                doveadm(nobody): Error: User initialization failed:
                Namespace '':<br class="">
                mkdir(/nonexistent/mail) failed: Permission denied
                (euid=65534(nobody)<br class="">
                egid=65534(nogroup))<br class="">
                doveadm(nobody): Error: User init failed<br class="">
                doveadm(DEFAULT-CW-USER): Info: User no longer exists,
                skipping<br class="">
                <br class="">
                Indeed, using<br class="">
                <br class="">
                doveadm user "*"<br class="">
                <br class="">
                does include "nobody" in the list but I can't understand
                why. The mail<br class="">
                group in /etc/group does not include "nobody" and there
                are users in<br class="">
                /etc/passwd with similar attributes to "nobody" that do
                not appear in<br class="">
                the list of users from doveadm.<br class="">
                <br class="">
                What can I do to tell doveadm to forget about "nobody"?<br
                  class="">
                <br class="">
                Thanks.<br class="">
                <br class="">
                Philip<br class="">
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