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    The dovecot.conf file from CentOS-7 contains this :<br>
    <br>
    --- snip ---<br>
    # A comma separated list of IPs or hosts where to listen in for
    connections. <br>
    # "*" listens in all IPv4 interfaces, "::" listens in all IPv6
    interfaces.<br>
    # If you want to specify non-default ports or anything more complex,<br>
    # edit conf.d/master.conf.<br>
    #listen = *, ::<br>
    --- snip ---<br>
    <br>
    HTH<br>
    <br>
    --<br>
    Prasad<br>
    <br>
    <div class="moz-cite-prefix">On 30/01/18 11:35 PM, Rupert Gallagher
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:welvGNnq5X5CMS1WhWMCBBqh1X4bCjNrihCqYQPMyBsQvmJE8HfnJ0NOreNb8p9IuMUMwRPlWyTc_BiAfBZ-_sbT_VQtSq8ElxFHcugWWGo=@protonmail.com">
      <div>test-net.c:79: Assert failed: strcmp(net_ip2addr(&ip),
        "::5") == 0<br>
      </div>
      <div>test-net.c:83: Assert failed: strcmp(net_ip2addr(&ip),
        "::5") == 0<br>
      </div>
      <div>net_ip2addr()
        ........................................................ :
        FAILED<br>
      </div>
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      <div>
        <div>Hello, <br>
        </div>
        <div>Is it possible to disable DOVECOT_IPV6?<br>
        </div>
        <div>We do not use IPv6 (and hope we shall never do on
          e-mails). <br>
        </div>
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      </div>
    </blockquote>
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