/usr/share/courier/webadmin/admin-30esmtp.html is in courier-mta 0.76.3-5+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html">
<meta name="MSSmartTagsPreventParsing" content="TRUE">
<meta name="Author" content="Sam Varshavchik">
<title>@PACKAGE@ @VERSION@ - Inbound ESMTP</title>
<!--
[#SAVED=<span style="color: #008000">Saved</span>#]
[#DELETE=- delete#]
[#INVALID=<span style="color: #800000">ERROR: Invalid hostname or IP address</span>#]
[#ISLOCAL=- <font size="-1"><em>local domain, cannot be deleted</em></font>#]
[#ISHOSTED=- <font size="-1"><em>locally hosted domain, cannot be deleted</em></font>#]
[#ISVIRTUAL=- <font size="-1"><em>virtual domain, cannot be deleted</em></font>#]
[#NETCIDR=<font size="-1">(You may also specify <code>aaa.bbb.ccc.ddd/prefix</code> or <code>from-to</code>)</font>#]
[#NONETCIDR=<font size="-1">(Install the <code>Net::CIDR</code> Perl module from <a href="http://www.cpan.org" target="_blank">CPAN</a> in order to be able to enter <code>aaa.bbb.ccc.ddd/prefix</code> and <code>from-to</code>)</font>#]
[#___#]
-->
</head>
<body text="#000000" bgcolor="#ffffff" link="#0000ee" vlink="#0000ee"
alink="#ff0000">
<!-- Copyright 2001-2002 Double Precision, Inc. See COPYING for -->
<!-- distribution information. -->
<form method="post" action="30esmtp">
<h1><tt>@PACKAGE@ @VERSION@</tt> - Inbound ESMTP</h1>
@ERROR@
<table cellspacing="16" cellpadding="0" border="0">
<tbody>
<tr>
<th colspan="2">Standard ESMTP</th>
<td width="1" bgcolor="#000000" rowspan="9"> </td>
<th colspan="2">ESMTP over TLS (port 465)</th>
<td width="1" bgcolor="#000000" rowspan="9"> </td>
<th colspan="2">Message Submission Protocol (port 587)</th>
</tr>
<tr>
<td colspan="2">@ENABLED@ Enabled</td>
<td colspan="2">@ENABLED_SSL@ Enabled</td>
<td colspan="2">@ENABLED_MSA@ Enabled</td>
</tr>
<tr>
<td colspan="2">@MSGID@ Add default Message-ID: header</td>
<td colspan="2">@MSGID_SSL@ Add default Message-ID: header</td>
<td colspan="2">@MSGID_MSA@ Add default Message-ID: header</td>
</tr>
<tr>
<td colspan="2">@DATE@ Add default Date: header</td>
<td colspan="2">@DATE_SSL@ Add default Date: header</td>
<td colspan="2">@DATE_MSA@ Add default Date: header</td>
</tr>
<tr>
<td colspan="2">@CHECKDNS@ Lookup return domain in DNS</td>
<td colspan="2">@CHECKDNS_SSL@ Lookup return domain in DNS</td>
<td colspan="2">@CHECKDNS_MSA@ Lookup return domain in DNS</td>
</tr>
<tr>
<td colspan="2">@AUTH@ Require authentication</td>
<td colspan="2">@AUTH_SSL@ Require authentication</td>
<td colspan="2">@AUTH_MSA@ Require authentication</td>
</tr>
<tr>
<td>Max # of connections accepted:</td>
<td><input type="text" size="4" text="" name="MAXDAEMONS"
value="@MAXDAEMONS@"></td>
<td>Max # of connections accepted:</td>
<td><input type="text" size="4" text="" name="MAXDAEMONS_SSL"
value="@MAXDAEMONS_SSL@"></td>
<td>Max # of connections accepted:</td>
<td><input type="text" size="4" text="" name="MAXDAEMONS_MSA"
value="@MAXDAEMONS_MSA@"></td>
</tr>
<tr>
<td>Max # of connections from one IP address:</td>
<td><input type="text" size="4" text="" name="MAXPERIP"
value="@MAXPERIP@"></td>
<td>Max # of connections from one IP address:</td>
<td><input type="text" size="4" text="" name="MAXPERIP_SSL"
value="@MAXPERIP_SSL@"></td>
<td>Max # of connections from one IP address:</td>
<td><input type="text" size="4" text="" name="MAXPERIP_MSA"
value="@MAXPERIP_MSA@"></td>
</tr>
<tr>
<td>Max # of connections from one netblock:</td>
<td><input type="text" size="4" text="" name="MAXPERC"
value="@MAXPERC@"></td>
<td>Max # of connections from one netblock:</td>
<td><input type="text" size="4" text="" name="MAXPERC_SSL"
value="@MAXPERC_SSL@"></td>
<td>Max # of connections from one netblock:</td>
<td><input type="text" size="4" text="" name="MAXPERC_MSA"
value="@MAXPERC_MSA@"></td>
</tr>
</tbody>
</table>
<table style="margin-left: 3.5em; margin-top: 1em;">
<tbody>
<tr>
<td colspan="2">Connections from blacklisted IP addresses:</td>
</tr>
<tr>
<td style="padding-left: 3.5em">@DROP@</td>
<td>Drop them immediately</td>
</tr>
<tr>
<td style="padding-left: 3.5em">@NOTDROP@</td>
<td>Accept them, but reject all mail</td>
</tr>
</tbody>
</table>
<h2>ESMTP Authentication</h2>
<table cellspacing="16" cellpadding="0" border="0">
<tbody>
<tr>
<th>Allowed non-SSL SASL authentication methods</th>
<th>Allowed SSL SASL authentication methods</th>
</tr>
<tr>
<td valign="top">@ESMTPAUTH@</td>
<td valign="top">@ESMTPAUTH_TLS@</td>
</tr>
</tbody>
</table>
<p>
<input type="submit" value="Save" name="Save"></p>
</form>
<hr>
<h2>Domains mail is accepted for via ESMTP</h2>
<div style="margin-left: 3.5em;">
@ACCEPTMAILFORLIST@</div>
<form method="post" action="30esmtp">
<p>Add domain (backup MX): <tt><input type="text" size="20"
name="addacceptmailfor"></tt>
<input type="submit" value="Save" name="SaveAcceptMailFor"></p>
</form>
<hr>
<h2>Incoming mail filtering/blacklisting</h2>
<div style="margin-left: 3.5em;">
@BLACKLISTS@</div>
<table cellspacing="16" cellpadding="0" border="0">
<tbody>
<tr valign="top">
<td><h3>Add new DNS lookup blacklist</h3>
<form method="post" action="30esmtp">
<ul>
<li><input type="radio" name="AddBl"
value="sbl.spamhaus.org/127.0.0.2"> <a
href="http://www.spamhaus.org">Spamhaus.org SBL</a><br>
<br>
</li>
<li><input type="radio" name="AddBl"
value="xbl.spamhaus.org/127.0.0.2"> <a
href="http://www.spamhaus.org">Spamhaus.org XBL</a><br>
<br>
</li>
<li><input type="radio" name="AddBl"
value="sbl-xbl.spamhaus.org"> <a
href="http://www.spamhaus.org">Spamhaus.org SBL &
XBL</a><br>
<br>
</li>
<li><input type="radio" name="AddBl" value="CUSTOM"> Other
DNS-based blacklist, provide information below:
<table border="0">
<tbody>
<tr>
<th valign="top" align="right">DNS Zone:</th>
<td><tt><input type="text" size="20"
name="zone"></tt></td>
</tr>
<tr>
<th valign="top" align="right">DNS 'A' record used:<br>
<font size="-1">(aaa.bbb.ccc.ddd)</font></th>
<td><tt><input type="text" size="20" name="ip"></tt> <br>
(optional)</td>
</tr>
<tr>
<th valign="top" align="right">Custom message:</th>
<td><tt><input type="text" size="20" name="msg"></tt> <br>
(optional)</td>
</tr>
</tbody>
</table>
</li>
</ul>
<input type="submit" value="Save" name="Add"></form>
</td>
<td width="1" bgcolor="#000000"></td>
<td><h3>Manual netblock blacklist/whitelist</h3>
<form method="post" action="30esmtp">
<table border="0" cellspacing="8">
<tbody>
<tr>
<td align="right">Netblock:</td>
<td><tt><input type="text" size="20" name="netblock"></tt>
(<tt>aaa.bbb.ccc</tt> or <tt>aaa.bbb</tt>)</td>
</tr>
<tr>
<td> </td>
<td>@NETCIDRINFO@</td>
</tr>
<tr>
<td align="right" valign="top" rowspan="6">Action:</td>
<td><input type="radio" name="value"
value="allow,BLOCK,RELAYCLIENT"> Whitelist, allow relaying</td>
</tr>
<tr>
<td><input type="radio" name="value"
value="allow,BLOCK,FAXRELAYCLIENT,RELAYCLIENT"> Whitelist, allow relaying,
accept mail for faxing</td>
</tr>
<tr>
<td><input type="radio" name="value"
value="allow,BLOCK"> Whitelist</td>
</tr>
<tr>
<td><input type="radio" name="value"
value="deny"> Drop incoming connections</td>
</tr>
<tr>
<td><input type="radio" name="value"
value="BOUNCE"> Reject mail with message: <tt><input
type="text" size="20" name="msg"
value="550 Blacklisted"></tt></td>
</tr>
<tr>
<td><input type="radio" name="value" value="allow"> Default
action (+options, below)</td>
</tr>
<tr>
<td colspan="2"><hr>
</td>
</tr>
<tr>
<td align="right" valign="top">Options:</td>
<td align="center">Corrupted/Invalid MIME-formatted mail:<br>
<table border="0" align="center">
<tbody>
<tr>
<td align="right"><input type="radio"
name="bofhbadmime" checked="checked" value=""></td>
<td>Reformat as an attachment (default)</td>
</tr>
<tr>
<td align="right"><input type="radio"
name="bofhbadmime" value="reject"></td>
<td>Reject</td>
</tr>
<tr>
<td align="right"><input type="radio"
name="bofhbadmime" value="accept"></td>
<td>Accept</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<input type="submit" value="Save" name="AddAccess"></form>
</td>
</tr>
</tbody>
</table>
<hr>
<p><a href="@MAINMENU@">Main Menu</a></p>
</body>
</html>
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