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<a name="mailutils-smtp"></a>
<div class="header">
<p>
Previous: <a href="mailutils-send.html#mailutils-send" accesskey="p" rel="prev">mailutils send</a>, Up: <a href="mailutils.html#mailutils" accesskey="u" rel="up">mailutils</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="mailutils-smtp-1"></a>
<h4 class="subsection">3.17.17 mailutils smtp</h4>
<p>The <code>mailutils smtp</code> command invokes an interactive SMTP client
shell.  It reads commands from the standard input, executes them and
displays the results on the standard output.  If the standard input is
connected to a terminal, the readline and history facilities are
enabled (provided that Mailutils is configured with GNU Readline).
</p>
<a name="Initializing-connection"></a>
<h4 class="subsubheading">Initializing connection</h4>

<dl>
<dt><a name="index-connect-1"></a>smtp command: <strong>connect</strong> <em>[-tls] <var>host</var> [<var>port</var>]</em></dt>
<dd><p>Connects to SMTP server at <var>host</var> (IP address or host name).  If
the <samp>-tls</samp> option is given, TLS encryption (also known as SMTPS
protocol) will be used.  The default port number is 25 for plain SMTP
and 465 for SMTPS.  Explicit <var>port</var> argument overrides the default
value.  
</p></dd></dl>

<a name="Connection-parameters"></a>
<h4 class="subsubheading">Connection parameters</h4>

<p>A number of parameters is associated with an open connection:
</p>
<dl compact="compact">
<dt>domain</dt>
<dd><p>Domain name used in EHLO statement.  Defaults to the current host name. 
</p></dd>
</dl>

<p>The following parameters are used for ESMTP authentication:
</p>
<dl compact="compact">
<dt>username</dt>
<dd><p>User name. 
</p></dd>
<dt>password</dt>
<dd><p>User password. 
</p></dd>
<dt>service</dt>
<dd><p>GSASL service name. 
</p></dd>
<dt>realm</dt>
<dd><p>Realm name. 
</p></dd>
<dt>host</dt>
<dd><p>Host name.
</p></dd>
<dt>url</dt>
<dd><p>SMTP URL.  It can contain all of the above. Default is smtp:// 
</p></dd>
</dl>

<p>These parameters are manipulated using the following statements:
</p>
<dl>
<dt><a name="index-set"></a>smtp command: <strong>set</strong> <em><var>param</var> <var>value</var> [<var>param</var> <var>value</var>...]</em></dt>
<dd><p>Sets parameter <var>param</var> to <var>value</var>.  Several parameters can be
set with one <code>set</code> statement.  
</p></dd></dl>

<dl>
<dt><a name="index-clear"></a>smtp command: <strong>clear</strong> <em>[<var>param</var>...]</em></dt>
<dd><p>Unset the supplied connection parameters.  If used without arguments,
unsets all parameters.  
</p></dd></dl>

<dl>
<dt><a name="index-list-2"></a>smtp command: <strong>list</strong> <em>[<var>param</var>...]</em></dt>
<dd><p>Lists the values of the connection parameters.  If used without
arguments, lists all parameters. 
</p></dd></dl>

<a name="SMTP-commands"></a>
<h4 class="subsubheading">SMTP commands</h4>
<dl>
<dt><a name="index-ehlo"></a>smtp command: <strong>ehlo</strong> <em>[<var>domain</var>]</em></dt>
<dd><p>Sends the ESMTP greeting.  Unless <var>domain</var> is supplied, the
connection parameter &lsquo;<samp>domain</samp>&rsquo; is used.  
</p></dd></dl>

<dl>
<dt><a name="index-capa"></a>smtp command: <strong>capa</strong> <em>[<var>name</var>...]</em></dt>
<dd><p>Lists the server capabilities. 
</p></dd></dl>

<dl>
<dt><a name="index-starttls-1"></a>smtp command: <strong>starttls</strong></dt>
<dd><p>Initiates encrypted connection.  This command is disabled if the
connection is opened with the <samp>-tls</samp> option.
</p></dd></dl>

<dl>
<dt><a name="index-auth-1"></a>smtp command: <strong>auth</strong> <em><var>mech</var> [<var>mech</var>...]</em></dt>
<dd><p>Authenticate using the supplied mechanisms.
</p></dd></dl>

<dl>
<dt><a name="index-rset"></a>smtp command: <strong>rset</strong></dt>
<dd><p>Reset the session state.
</p></dd></dl>

<dl>
<dt><a name="index-from"></a>smtp command: <strong>from</strong> <em>[<var>email</var>]</em></dt>
<dd><p>Sets sender email address.  If used without arguments, prints the
sender email address.
</p></dd></dl>

<dl>
<dt><a name="index-to"></a>smtp command: <strong>to</strong> <em>[<var>email</var>]</em></dt>
<dd><p>Sets recipient email address.  If used without arguments, prints all
recepient names collected so far.
</p></dd></dl>

<dl>
<dt><a name="index-smtp"></a>smtp command: <strong>smtp</strong> <em><var>command</var> [<var>args</var>...]</em></dt>
<dd><p>Sends the <var>command</var> with its arguments verbatim. 
</p></dd></dl>

<dl>
<dt><a name="index-quit-1"></a>smtp command: <strong>quit</strong></dt>
<dd><p>Quits the SMTP session. 
</p></dd></dl>

<dl>
<dt><a name="index-send"></a>smtp command: <strong>send</strong> <em>[<var>file</var>]</em></dt>
<dd><p>Reads the message from <var>file</var> and sends it.  If <var>file</var> is not
supplied, the action depends on whether a <code>send</code> command was used
prevously within the same session.  If so, <code>mailutils</code> will
first ask whether to reuse the already supplied message.  If not, it
will start an editor, allowing you to enter the new message.  When you
exit from the editor, you will be prompted what to do with the
message: send, edit, or quit (discard) it.
</p></dd></dl>

<a name="Internal-commands-2"></a>
<h4 class="subsubheading">Internal commands</h4>

<p>Internal commands are the same as in <code>pop</code> shell: See <a href="mailutils-pop.html#mailutils-pop">Internal commands</a>.
</p>

<hr>
<div class="header">
<p>
Previous: <a href="mailutils-send.html#mailutils-send" accesskey="p" rel="prev">mailutils send</a>, Up: <a href="mailutils.html#mailutils" accesskey="u" rel="up">mailutils</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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