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annotate xml/en/docs/mail/ngx_mail_pop3_module.xml @ 1923:66a30a380fba

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Fixed links to tools.ietf.org.
author Ruslan Ermilov <ru@nginx.com>
date Mon, 06 Mar 2017 16:02:23 +0300
parents 9af1e88e10c8
children 237a10fb98d2
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1 <?xml version="1.0"?>
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2
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3 <!--
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4 Copyright (C) 2006, 2007 Anton Yuzhaninov
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5 Copyright (C) Nginx, Inc.
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6 -->
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7
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8 <!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
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9
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10 <module name="Module ngx_mail_pop3_module"
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11 link="/en/docs/mail/ngx_mail_pop3_module.html"
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12 lang="en"
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13 rev="3">
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14
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15 <section id="directives" name="Directives">
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16
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17 <directive name="pop3_auth">
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18 <syntax><value>method</value> ...</syntax>
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19 <default>plain</default>
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20 <context>mail</context>
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21 <context>server</context>
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22
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23 <para>
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24 Sets permitted methods of authentication for POP3 clients.
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25 Supported methods are:
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26 <list type="tag">
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27
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28 <tag-name><literal>plain</literal></tag-name>
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29 <tag-desc>
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30 <link url="https://tools.ietf.org/html/rfc1939">USER/PASS</link>,
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31 <link url="https://tools.ietf.org/html/rfc4616">AUTH PLAIN</link>,
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32 <link url="https://tools.ietf.org/html/draft-murchison-sasl-login-00">AUTH LOGIN</link>.
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33 It is not possible to disable these methods.
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34 </tag-desc>
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35
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36 <tag-name><literal>apop</literal></tag-name>
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37 <tag-desc>
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38 <link url="https://tools.ietf.org/html/rfc1939">APOP</link>.
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39 In order for this method to work, the password must be stored unencrypted.
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40 </tag-desc>
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41
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42 <tag-name><literal>cram-md5</literal></tag-name>
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43 <tag-desc>
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44 <link url="https://tools.ietf.org/html/rfc2195">AUTH CRAM-MD5</link>.
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45 In order for this method to work, the password must be stored unencrypted.
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46 </tag-desc>
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47
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48 <tag-name><literal>external</literal></tag-name>
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49 <tag-desc>
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50 <link url="https://tools.ietf.org/html/rfc4422">AUTH EXTERNAL</link> (1.11.6).
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51 </tag-desc>
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52
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53 </list>
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54 </para>
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55
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56 </directive>
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57
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58
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59 <directive name="pop3_capabilities">
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60 <syntax><value>extension</value> ...</syntax>
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61 <default>TOP USER UIDL</default>
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62 <context>mail</context>
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63 <context>server</context>
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64
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65 <para>
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66 Sets the
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67 <link url="https://tools.ietf.org/html/rfc2449">POP3 protocol</link>
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68 extensions list that is passed to the client in response to
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69 the <literal>CAPA</literal> command.
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70
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71 The authentication methods specified in the <link id="pop3_auth"/> and
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72 (<link url="https://tools.ietf.org/html/rfc2449">SASL</link> extension) and
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73 <link url="https://tools.ietf.org/html/rfc2595">STLS</link> directives,
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74 are automatically added to this list if the
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75 <link doc="ngx_mail_ssl_module.xml" id="starttls"/> directive is enabled.
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76 </para>
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77
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78 <para>
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79 It makes sense to specify the extensions
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80 supported by the POP3 backends
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81 to which the clients are proxied (if these extensions are related to commands
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82 used after the authentication, when nginx transparently proxies the client
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83 connection to the backend).
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84 </para>
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85
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86 <para>
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87 The current list of standardized extensions is published at
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88 <link url="http://www.iana.org/assignments/pop3-extension-mechanism">www.iana.org</link>.
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89 </para>
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90
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91 </directive>
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92
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93 </section>
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94
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95 </module>