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<p>A thin wrapper around libmilter.  
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<tr class="memdesc:a560ae93b2946e6405d4e317461db8b4d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set timeout for MTA communication.  <a href="#a560ae93b2946e6405d4e317461db8b4d">More...</a><br /></td></tr>
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<tr class="memdesc:a54ec699d5822b59094c351be70276110"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set socket backlog.  <a href="#a54ec699d5822b59094c351be70276110">More...</a><br /></td></tr>
<tr class="separator:a54ec699d5822b59094c351be70276110"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="separator:a47dedd3e5972a865bcfaa5163eb481cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="separator:acd4b12aff996916919045f0d9be4d4d8"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="memdesc:a03013ef1adc45729ac2ebeccc1afd47d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Retrieve diagnostic info.  <a href="#a03013ef1adc45729ac2ebeccc1afd47d">More...</a><br /></td></tr>
<tr class="separator:a03013ef1adc45729ac2ebeccc1afd47d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a87fde36f3baa77e209fbed7ca2c89796"><td class="memItemLeft" align="right" valign="top">def&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespacemilter.html#a87fde36f3baa77e209fbed7ca2c89796">getversion</a> ()</td></tr>
<tr class="memdesc:a87fde36f3baa77e209fbed7ca2c89796"><td class="mdescLeft">&#160;</td><td class="mdescRight">Retrieve the runtime libmilter version.  <a href="#a87fde36f3baa77e209fbed7ca2c89796">More...</a><br /></td></tr>
<tr class="separator:a87fde36f3baa77e209fbed7ca2c89796"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
Variables</h2></td></tr>
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<tr class="separator:a590b7ab395513af007869ad83e332c14"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="memdesc:a2345250030581a1639ecf905e1668b0a"><td class="mdescLeft">&#160;</td><td class="mdescRight">For a connection-oriented routine, reject this connection; call <a class="el" href="classMilter_1_1Base.html#a2644dc855f49da0a9810e8d390c93906" title="Called when the connection is closed. ">Milter.Base.close()</a>.  <a href="#a2345250030581a1639ecf905e1668b0a">More...</a><br /></td></tr>
<tr class="separator:a2345250030581a1639ecf905e1668b0a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4c8bad190cb7f54cea87f1182732ce83"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespacemilter.html#a4c8bad190cb7f54cea87f1182732ce83">DISCARD</a> = 2</td></tr>
<tr class="memdesc:a4c8bad190cb7f54cea87f1182732ce83"><td class="mdescLeft">&#160;</td><td class="mdescRight">For a message- or recipient-oriented routine, accept this message, but silently discard it.  <a href="#a4c8bad190cb7f54cea87f1182732ce83">More...</a><br /></td></tr>
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<tr class="memitem:ae40b8bfbb6828233115c61490998f7f4"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespacemilter.html#ae40b8bfbb6828233115c61490998f7f4">ACCEPT</a> = 3</td></tr>
<tr class="memdesc:ae40b8bfbb6828233115c61490998f7f4"><td class="mdescLeft">&#160;</td><td class="mdescRight">For a connection-oriented routine, accept this connection without further filter processing; call <a class="el" href="classMilter_1_1Base.html#a2644dc855f49da0a9810e8d390c93906" title="Called when the connection is closed. ">Milter.Base.close()</a>.  <a href="#ae40b8bfbb6828233115c61490998f7f4">More...</a><br /></td></tr>
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<tr class="memitem:a1b4940e90c267a81cba6be20aa782e85"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespacemilter.html#a1b4940e90c267a81cba6be20aa782e85">TEMPFAIL</a> = 4</td></tr>
<tr class="memdesc:a1b4940e90c267a81cba6be20aa782e85"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a temporary failure, i.e., the corresponding SMTP command will return an appropriate 4xx status code.  <a href="#a1b4940e90c267a81cba6be20aa782e85">More...</a><br /></td></tr>
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<tr class="memdesc:aa2fa23a83f9bbc204eb14313a6efd4cc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Skip further callbacks of the same type in this transaction.  <a href="#aa2fa23a83f9bbc204eb14313a6efd4cc">More...</a><br /></td></tr>
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<tr class="memitem:a45378e0b42f76927adaf504b6082fc7d"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespacemilter.html#a45378e0b42f76927adaf504b6082fc7d">NOREPLY</a> = 6</td></tr>
<tr class="memdesc:a45378e0b42f76927adaf504b6082fc7d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Do not send a reply back to the MTA.  <a href="#a45378e0b42f76927adaf504b6082fc7d">More...</a><br /></td></tr>
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<tr class="memdesc:ab678787ccf06b2417a07e7057f7bace4"><td class="mdescLeft">&#160;</td><td class="mdescRight">The compile time libmilter version.  <a href="#ab678787ccf06b2417a07e7057f7bace4">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A thin wrapper around libmilter. </p>
<p>Most users will not import milter directly, but will instead import <a class="el" href="namespaceMilter.html" title="A thin OO wrapper for the milter module. ">Milter</a> and subclass <a class="el" href="classMilter_1_1Base.html" title="A do &quot;nothing&quot; Milter base class representing an SMTP connection. ">Milter.Base</a>. This module gives you ultimate low level control from python. </p>
</div><h2 class="groupheader">Function Documentation</h2>
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<p>Retrieve diagnostic info. </p>
<p>Return a tuple with diagnostic info gathered by the milter module. The first two fields are counts of <a class="el" href="classmilter_1_1milterContext.html" title="Hold context for a milter connection. ">milterContext</a> objects created and deleted. Additional fields may be added later. </p><dl class="section return"><dt>Returns</dt><dd>a tuple of diagnostic data </dd></dl>

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<p>Retrieve the runtime libmilter version. </p>
<p>Return the runtime libmilter version. This can be different from the compile time version when sendmail or libmilter is upgraded after pymilter is compiled. </p><dl class="section return"><dt>Returns</dt><dd>a tuple of <code>(major,minor,patchlevel)</code> </dd></dl>

<p>Referenced by <a class="el" href="namespaceMilter.html#a8ae61554a7e4dc83916f5325024a53f0">Milter.runmilter()</a>.</p>

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<p>Transfer control to libmilter. </p>
<p>Calls <a href="https://www.milter.org/developers/api/smfi_main">smfi_main</a>. </p>

<p>Referenced by <a class="el" href="namespaceMilter.html#a8ae61554a7e4dc83916f5325024a53f0">Milter.runmilter()</a>.</p>

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<p>Attempt to create the socket used to communicate with the MTA. </p>
<p><a class="el" href="namespacemilter.html#a25c4b69c2520b1935a816734041db77d" title="Attempt to create the socket used to communicate with the MTA. ">milter.opensocket()</a> attempts to create the socket specified previously by a call to <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn()</a> which will be the interface between MTAs and the milter. This allows the calling application to ensure that the socket can be created. If this is not called, <a class="el" href="namespacemilter.html#a505352a1ee405fa0bc08c97ed094fb21" title="Transfer control to libmilter. ">milter.main()</a> will do so implicitly. Calls <a href="https://www.milter.org/developers/api/smfi_opensocket">smfi_opensocket</a>. While not documented for libmilter, my experiments indicate that you must call <a class="el" href="namespacemilter.html#aa940d270cd3e1d7072be6f41d29936df" title="Register python milter with libmilter. ">register()</a> before calling <a class="el" href="namespacemilter.html#a25c4b69c2520b1935a816734041db77d" title="Attempt to create the socket used to communicate with the MTA. ">opensocket()</a>. </p><dl class="params"><dt>Parameters</dt><dd>
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<p>Referenced by <a class="el" href="namespaceMilter.html#a8ae61554a7e4dc83916f5325024a53f0">Milter.runmilter()</a>.</p>

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<p>Register python milter with libmilter. </p>
<p>The name we pass is used to identify the milter in the MTA configuration. Callback functions must be set using the set_*_callback() functions before registering the milter. Three additional callbacks are specified as keyword parameters. These were added by recent versions of libmilter. The keyword parameters is a nicer way to do it, I think, since it makes clear that you have to do it before registering. I may move all the callbacks in the future (perhaps keeping the set functions for compatibility). Note that <a class="el" href="classMilter_1_1Base.html" title="A do &quot;nothing&quot; Milter base class representing an SMTP connection. ">Milter.Base</a> automatically maps all callbacks to member functions, and negotiates which member functions are actually overridden by an application class. </p><dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">name</td><td>the milter name by which the MTA finds us </td></tr>
    <tr><td class="paramname">negotiate</td><td>the <a href="https://www.milter.org/developers/api/xxfi_negotiate">xxfi_negotiate</a> callback, called to negotiate supported actions, callbacks, and protocol steps. </td></tr>
    <tr><td class="paramname">unknown</td><td>the <a href="https://www.milter.org/developers/api/xxfi_unknown">xxfi_unknown</a> callback, called when for SMTP commands not recognized by the MTA. (Extend SMTP in your milter!) </td></tr>
    <tr><td class="paramname">data</td><td>the <a href="https://www.milter.org/developers/api/xxfi_data">xxfi_data</a> callback, called when the DATA SMTP command is received. </td></tr>
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<p>Referenced by <a class="el" href="namespaceMilter.html#a8ae61554a7e4dc83916f5325024a53f0">Milter.runmilter()</a>.</p>

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<p>Sets the return code for untrapped Python exceptions during a callback. </p>
<p>The default is TEMPFAIL. You should not depend on this handler. Your application should have its own top level exception handler for each callback. You can then choose your own reply message, log the stack track were you please, and so on. However, if you miss one, this last ditch handler will print a standard stack trace to sys.stderr, and return to sendmail. </p><dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">code</td><td>one of <a class="el" href="namespacemilter.html#a1b4940e90c267a81cba6be20aa782e85" title="Return a temporary failure, i.e., the corresponding SMTP command will return an appropriate 4xx statu...">TEMPFAIL</a>,<a class="el" href="namespacemilter.html#a2345250030581a1639ecf905e1668b0a" title="For a connection-oriented routine, reject this connection; call Milter.Base.close(). ">REJECT</a>,<a class="el" href="namespacemilter.html#a590b7ab395513af007869ad83e332c14" title="Continue processing the current connection, message, or recipient. ">CONTINUE</a>, or since 1.0, <a class="el" href="namespacemilter.html#ae40b8bfbb6828233115c61490998f7f4" title="For a connection-oriented routine, accept this connection without further filter processing; call Mil...">ACCEPT</a> </td></tr>
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<p>Enable optional milter actions. </p>
<p>Certain milter actions need to be enabled before calling <a class="el" href="namespacemilter.html#a505352a1ee405fa0bc08c97ed094fb21" title="Transfer control to libmilter. ">main()</a> or they throw an exception. Pymilter enables them all by default (since 0.9.2), but you may wish to disable unneeded actions as an optimization. </p><dl class="params"><dt>Parameters</dt><dd>
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<p>Set socket backlog. </p>
<p>Calls <a href="https://www.milter.org/developers/api/smfi_setbacklog">smfi_setbacklog</a>. Must be called before calling <a class="el" href="namespacemilter.html#a505352a1ee405fa0bc08c97ed094fb21" title="Transfer control to libmilter. ">main()</a>. </p>

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<p>Set the socket used to communicate with the MTA. </p>
<p>The MTA can communicate with the milter by means of a unix, inet, or inet6 socket. By default, a unix domain socket is used. It must not exist, and sendmail will throw warnings if, eg, the file is under a group or world writable directory. <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn()</a> will not fail with an invalid socket - this will be detected only when calling <a class="el" href="namespacemilter.html#a505352a1ee405fa0bc08c97ed094fb21" title="Transfer control to libmilter. ">milter.main()</a> or <a class="el" href="namespacemilter.html#a25c4b69c2520b1935a816734041db77d" title="Attempt to create the socket used to communicate with the MTA. ">milter.opensocket()</a>. </p><dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">s</td><td>the socket address in proto:address format <pre>
 <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn</a>('unix:/var/run/pythonfilter')  # a named pipe
 <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn</a>('local:/var/run/pythonfilter') # a named pipe
 <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn</a>('inet:8800')                    # listen on ANY interface
 <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn</a>('inet:7871@publichost')        # listen on a specific interface
 <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn</a>('inet6:8020')
 <a class="el" href="namespacemilter.html#a47dedd3e5972a865bcfaa5163eb481cb" title="Set the socket used to communicate with the MTA. ">milter.setconn</a>('inet6:8020@[2001:db8:1234::1]')      # listen on specific IP
 </pre> </td></tr>
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<p>Referenced by <a class="el" href="namespaceMilter.html#a8ae61554a7e4dc83916f5325024a53f0">Milter.runmilter()</a>.</p>

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<p>Set the libmilter debugging level. </p>
<p><a href="https://www.milter.org/developers/api/smfi_setdbg">smfi_setdbg</a> sets the milter library's internal debugging level to a new level so that code details may be traced. A level of zero turns off debugging. The greater (more positive) the level the more detailed the debugging. Six is the current, highest, useful value. Must be called before calling <a class="el" href="namespacemilter.html#a505352a1ee405fa0bc08c97ed094fb21" title="Transfer control to libmilter. ">main()</a>. </p>

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<p>Set timeout for MTA communication. </p>
<p>Calls <a href="https://www.milter.org/developers/api/smfi_settimeout">smfi_settimeout</a>. Must be called before calling <a class="el" href="namespacemilter.html#a505352a1ee405fa0bc08c97ed094fb21" title="Transfer control to libmilter. ">main()</a>. </p>

<p>Referenced by <a class="el" href="namespaceMilter.html#a8ae61554a7e4dc83916f5325024a53f0">Milter.runmilter()</a>.</p>

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<p>Stop the milter gracefully. </p>

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<h2 class="groupheader">Variable Documentation</h2>
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<p>For a connection-oriented routine, accept this connection without further filter processing; call <a class="el" href="classMilter_1_1Base.html#a2644dc855f49da0a9810e8d390c93906" title="Called when the connection is closed. ">Milter.Base.close()</a>. </p>
<p>For a message- or recipient-oriented routine, accept this message without further filtering. </p>

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<p>Continue processing the current connection, message, or recipient. </p>

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<p>For a message- or recipient-oriented routine, accept this message, but silently discard it. </p>
<p>SMFIS_DISCARD should not be returned by a connection-oriented routine. </p>

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<p>Do not send a reply back to the MTA. </p>
<p>The milter must negotiate this behavior with the MTA, i.e., it must check whether the appropriate protocol action P_NR_* is available and if so, the milter must request it. If you set the P_NR_* protocol action for a callback, that callback must always reply with NOREPLY. Using any other reply code is a violation of the API. If in some cases your callback may return another value (e.g., due to some resource shortages), then you must not set P_NR_* and you must use CONTINUE as the default return code. (Alternatively you can try to delay reporting the problem to a later callback for which P_NR_* is not set.)</p>
<p>This is negotiated and returned automatically by the <a class="el" href="namespaceMilter.html#a5bc0cfa03c567347b622acda6f6b6d42" title="Function decorator to disable callback reply. ">Milter.noreply</a> function decorator. </p>

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<p>For a connection-oriented routine, reject this connection; call <a class="el" href="classMilter_1_1Base.html#a2644dc855f49da0a9810e8d390c93906" title="Called when the connection is closed. ">Milter.Base.close()</a>. </p>
<p>For a message-oriented routine, except <a class="el" href="classMilter_1_1Base.html#a725f845830639b76f479dc6c0f7f8c00" title="Called at the end of the message body. ">Milter.Base.eom()</a> or <a class="el" href="classMilter_1_1Base.html#aef01a2465e563ad1435030cfc9b30939" title="Called when the connection is abnormally terminated. ">Milter.Base.abort()</a>, reject this message. For a recipient-oriented routine, reject the current recipient (but continue processing the current message). </p>

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<p>Skip further callbacks of the same type in this transaction. </p>
<p>Currently this return value is only allowed in <a class="el" href="classMilter_1_1Base.html#a963e42c7fcf7bb1a967af48c878b00c7" title="Called to supply the body of the message to the Milter by chunks. ">Milter.Base.body()</a>. It can be used if a milter has received sufficiently many body chunks to make a decision, but still wants to invoke message modification functions that are only allowed to be called from <a class="el" href="classMilter_1_1Base.html#a725f845830639b76f479dc6c0f7f8c00" title="Called at the end of the message body. ">Milter.Base.eom()</a>. Note: the milter must negotiate this behavior with the MTA, i.e., it must check whether the protocol action SMFIP_SKIP is available and if so, the milter must request it. </p>

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<p>Return a temporary failure, i.e., the corresponding SMTP command will return an appropriate 4xx status code. </p>
<p>For a message-oriented routine, except <a class="el" href="classMilter_1_1Base.html#ac8f026580efbc83c4901693828a362f5" title="Called when the SMTP client says MAIL FROM. ">Milter.Base.envfrom()</a>, fail for this message. For a connection-oriented routine, fail for this connection; call <a class="el" href="classMilter_1_1Base.html#a2644dc855f49da0a9810e8d390c93906" title="Called when the connection is closed. ">Milter.Base.close()</a>. For a recipient-oriented routine, only fail for the current recipient; continue message processing. </p>

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<p>The compile time libmilter version. </p>
<p>Python code might need to deal with pymilter compiled against various versions of libmilter. This module constant contains the contents of the <code>SMFI_VERSION</code> macro when the milter module was compiled. </p>

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