3proxy/doc/html/man8/smtpp.8.html
2026-04-05 18:19:49 +03:00

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<h1 align="center">smtpp</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#OPTIONS">OPTIONS</a><br>
<a href="#CLIENTS">CLIENTS</a><br>
<a href="#BUGS">BUGS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<a href="#AUTHORS">AUTHORS</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:6%; margin-top: 1em"><b>smtpp</b> -
SMTP proxy gateway service</p>
<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>
<p style="margin-left:6%; margin-top: 1em"><b>smtpp</b>
[<b>-d</b>] [<b>-l</b>[[<i>@</i>]<i>logfile</i>]]
[<b>-p</b><i>port</i>] [<b>-i</b><i>internal_ip</i>]
[<b>-e</b><i>external_ip</i>]
[<b>-h</b><i>default_ip[:port]</i>]</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:6%; margin-top: 1em"><b>smtpp</b> is
SMTP gateway service to allow internal users to access
external SMTP servers.</p>
<h2>OPTIONS
<a name="OPTIONS"></a>
</h2>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-I</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Inetd mode. Standalone service
only.</p> </td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-d</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Daemonize. Detach service from
console and run in the background.</p></td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-t</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Be silenT. Do not log
start/stop/accept error records.</p></td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-u</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Never look for username
authentication.</p> </td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-e</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">External address. IP address of
the interface the proxy should initiate connections from. By
default, the system will decide which address to use in
accordance with the routing table.</p></td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-i</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Internal address. IP address the
proxy accepts connections to. By default, connections to any
interface are accepted. It&acute;s usually unsafe.</p></td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-p</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Port. Port proxy listens for
incoming connections. Default is 25.</p></td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-h</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Default destination. It&rsquo;s
used if the target address is not specified by the user.</p></td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-l</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Log. By default logging is to
stdout. If <i>logfile</i> is specified logging is to file.
Under Unix, if &acute;<i>@</i>&acute; precedes
<i>logfile</i>, syslog is used for logging.</p></td></tr>
<tr valign="top" align="left">
<td width="6%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>-S</b></p></td>
<td width="6%"></td>
<td width="85%">
<p style="margin-top: 1em">Increase or decrease stack size.
You may want to try something like -S8192 if you experience
3proxy crashes.</p></td></tr>
</table>
<h2>CLIENTS
<a name="CLIENTS"></a>
</h2>
<p style="margin-left:6%; margin-top: 1em">You can use any
MUA (Mail User Agent) with SMTP authentication support. Set
the client to use <i>internal_ip</i> and <i>port</i> as an
SMTP server. The address of the real SMTP server must be
configured as a part of the SMTP username. The format for
the username is <i>username</i><b>@</b><i>server</i>, where
<i>server</i> is the address of the SMTP server and
<i>username</i> is the user&acute;s login on this SMTP
server. The login itself may contain an &acute;@&acute;
sign. Only cleartext authentication is supported, because
challenge-response authentication (CRAM-MD5, SPA, etc.)
requires a challenge from the server before we know which
server to connect to.</p>
<h2>BUGS
<a name="BUGS"></a>
</h2>
<p style="margin-left:6%; margin-top: 1em">Report all bugs
to <b>3proxy@3proxy.org</b></p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:6%; margin-top: 1em">3proxy(8),
ftppr(8), proxy(8), socks(8), tcppm(8), udppm(8),
syslogd(8), <br>
https://3proxy.org/</p>
<h2>AUTHORS
<a name="AUTHORS"></a>
</h2>
<p style="margin-left:6%; margin-top: 1em">3proxy is
designed by Vladimir 3APA3A Dubrovin
(<i>3proxy@3proxy.org</i>)</p>
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