/usr/share/courier/webadmin/admin-00machine.html is in courier-webadmin 0.68.2-1ubuntu7.
This file is owned by root:root, with mode 0o644.
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    "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <meta name="MSSmartTagsPreventParsing" content="TRUE" />
  <meta name="Author" content="Sam Varshavchik" />
  <!-- Copyright 2001 Double Precision, Inc.  See COPYING for -->
  <!-- distribution information. -->
  <title>@PACKAGE@ @VERSION@ - Mail server name and local domains</title>
  <!--
  [#BADHOSTNAME=ERROR: Invalid hostname#]
  [#SAVED=<span style="color: #008000">Configuration saved</span>#]
  [#DELETE=delete#]
  [#BADLOCAL=<span style="color: #800000">ERROR: Invalid hostname</span>#]
  [#LOCALEXISTS=<span style="color: #800000">ERROR: duplicate local domain</span>#]
  [#VIRTUALEXISTS=<span style="color: #800000">ERROR: this domain is already defined as a virtual domain.  The virtual domain must be removed before it can be added as a local or a locally-hosted domain.</span>#]
  [#LOCALHOSTED=<span style="color: #800000">ERROR: domain cannot be both local and locally-hosted</span>#]
  [#BADHOSTED=<span style="color: #800000">ERROR: Invalid hostname</span>#]
  [#HOSTEDEXISTS=<span style="color: #800000">ERROR: duplicate locally-hosted domain</span>#]
  [#___#]
  -->
</head>
<body text="#000000" bgcolor="#ffffff" link="#0000ee" vlink="#0000ee"
alink="#ff0000">
<h1><tt>@PACKAGE@ @VERSION@</tt> - Mail server name and local domains</h1>
<p>@SAVEDMSG@</p>
<form method="post" action="00machine">
  <table border="0">
    <tbody>
      <tr valign="middle">
        <td align="right">Server name:</td>
        <td><tt><input type="text" size="20" name="ME" value="@ME@" /></tt>
          (default: <tt>@defaultME@</tt>)</td>
      </tr>
      <tr>
        <td colspan="2"><span style="color: #ff0000">@MEERROR@</span> </td>
      </tr>
    </tbody>
  </table>
  <p>
  <input type="submit" value="Save" name="Submit" /></p>
</form>
<hr>
<h2>Local domains</h2>
<p>Mail to <tt><user@localdomain></tt> will be delivered to local
account "<tt>user</tt>".</p>
<form method="post" action="00machine">
  <div style="margin-left: 3.5em;">
    @LOCALS@</div>
  <p>Add local domain: <tt><input type="text" size="20"
  name="newlocaldomain" /></tt> 
  <input type="submit" value="Add" name="addlocal" /></p>
  <p>@LOCALERR@</p>
</form>
<hr>
<h2>Locally-hosted domains</h2>
<p>Mail to <tt><user@hosteddomain></tt> will be delivered to local
account "<tt>user@hosteddomain</tt>".</p>
<form method="post" action="00machine">
  <div style="margin-left: 3.5em;">
    @HOSTED@</div>
  <p>Add locally hosted domain: <tt><input type="text" size="20"
  name="newhosteddomain" /></tt> 
  <input type="submit" value="Add" name="addhosted" /></p>
  <p>@HOSTEDERR@</p>
</form>
<hr>
<h2>Other domain settings</h2>
<form method="post" action="00machine">
  <table border="0">
    <tbody>
      <tr valign="top">
        <td align="right">Default domain:</td>
        <td><tt><input type="text" size="20" name="defaultdomain"
          value="@DEFAULTDOMAIN@" /></tt><br />
          (defaults to server name)</td>
        <td>- domain added to unqualified addresses in mail headers.</td>
      </tr>
      <tr>
        <td colspan="3"> </td>
      </tr>
      <tr valign="top">
        <td align="right">Message-ID domain:</td>
        <td><tt><input type="text" size="20" name="msgidhost"
          value="@MSGIDHOST@" /></tt><br />
          (defaults to server name)</td>
        <td>- domain used in Courier-generated Message-ID: headers</td>
      </tr>
    </tbody>
  </table>
  <p><span style="color: #ff0000">@OTHERDOMAINERR@</span></p>
  <p>
  <input type="submit" value="Save" name="submit" /></p>
</form>
<p><a href="@MAINMENU@">Main Menu</a></p>
</body>
</html>
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