Mercurial > dovecot > original-hg > dovecot-1.2
annotate dovecot-example.conf @ 1113:4abeb0fa0fe7 HEAD
Don't use flock() locking by default. Using both fcntl+flock doesn't work
with FreeBSD.
author | Timo Sirainen <tss@iki.fi> |
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date | Sat, 08 Feb 2003 15:43:13 +0200 |
parents | a72bba3f8a55 |
children | 5e9430a39611 |
rev | line source |
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0 | 1 ## Dovecot 1.0 configuration file |
2 | |
3 # Default values are shown after each value, it's not required to uncomment | |
435 | 4 # any of the lines. Exception to this are paths, they're just examples |
5 # with real defaults being based on configure options. The paths listed here | |
6 # are for configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var | |
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7 # --with-ssldir=/etc/ssl |
0 | 8 |
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9 # Base directory where to store runtime data. |
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10 #base_dir = /var/run/dovecot/ |
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11 |
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12 # Protocols we want to be serving: |
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13 # imap imaps pop3 pop3s |
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14 #protocols = imap imaps |
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16 # IP or host address where to listen in for connections. It's not currently |
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17 # possible to specify multiple addresses. "*" listens in all IPv4 interfaces. |
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18 # "[::]" listens in all IPv6 interfaces, but may also listen in all IPv4 |
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19 # interfaces depending on the operating system. You can specify ports with |
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20 # "host:port". |
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21 #imap_listen = * |
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22 #pop3_listen = * |
0 | 23 |
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24 # IP or host address where to listen in for SSL connections. Defaults |
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25 # to above non-SSL equilevants if not specified. |
0 | 26 #imaps_listen = |
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27 #pop3s_listen = |
0 | 28 |
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29 # Disable SSL/TLS support. |
666 | 30 #ssl_disable = no |
31 | |
519 | 32 # PEM encoded X.509 SSL/TLS certificate and private key. They're opened before |
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33 # dropping root privileges, so keep the key file unreadable by anyone but |
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34 # root. Included doc/mkcert.sh can be used to easily generate self-signed |
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35 # certificate, just make sure to update the domains in dovecot-openssl.cnf |
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36 #ssl_cert_file = /etc/ssl/certs/dovecot.pem |
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37 #ssl_key_file = /etc/ssl/private/dovecot.pem |
0 | 38 |
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39 # SSL parameter file. Master process generates this file for login processes. |
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40 # It contains Diffie Hellman and RSA parameters. |
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41 #ssl_parameters_file = /var/run/dovecot/ssl-parameters.dat |
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42 |
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43 # How often to regenerate the SSL parameters file. Generation is quite CPU |
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44 # intensive operation. The value is in hours, 0 disables regeneration |
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45 # entirely. |
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46 #ssl_parameters_regenerate = 24 |
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47 |
0 | 48 # Disable LOGIN command and all other plaintext authentications unless |
49 # SSL/TLS is used (LOGINDISABLED capability) | |
50 #disable_plaintext_auth = no | |
51 | |
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52 # Use this logfile instead of syslog() |
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53 #log_path = |
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54 |
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55 # For informational messages, use this logfile instead of the default |
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56 #info_log_path = |
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57 |
35
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58 # Prefix for each line written to log file. % codes are in strftime(3) |
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59 # format. Note the extra space at the end of line. |
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60 #log_timestamp = %b %d %H:%M:%S |
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61 |
0 | 62 ## |
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63 ## Login processes |
0 | 64 ## |
65 | |
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66 # Directory where authentication process places authentication UNIX sockets |
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67 # which login needs to be able to connect to. The sockets are created when |
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68 # running as root, so you don't have to worry about permissions. |
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69 #login_dir = /var/run/dovecot/login |
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70 |
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71 # chroot login process to the login_dir. Only reason not to do this is if you |
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72 # wish to run the whole Dovecot without roots. |
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73 #login_chroot = yes |
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74 |
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75 |
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76 ## |
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77 ## IMAP login process |
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78 ## |
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79 |
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80 login = imap |
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81 |
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82 # Executable location. |
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83 #login_executable = /usr/libexec/dovecot/imap-login |
0 | 84 |
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85 # User to use for the login process. The user must belong to a group where |
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86 # only it has access, it's used to control access for authentication process |
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87 # named sockets. |
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88 #login_user = dovecot |
0 | 89 |
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90 # Set max. process size in megabytes. If you don't use |
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91 # login_process_per_connection you might need to grow this. |
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92 #login_process_size = 16 |
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93 |
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94 # Should each login be processed in it's own process (yes), or should one |
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95 # login process be allowed to process multiple connections (no)? Yes is more |
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96 # secure, espcially with SSL/TLS enabled. No is faster since there's no need |
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97 # to create processes all the time. |
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98 #login_process_per_connection = yes |
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99 |
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100 # Number of login processes to create. If login_process_per_user is |
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101 # yes, this is the number of extra processes waiting for users to log in. |
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102 #login_processes_count = 3 |
0 | 103 |
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104 # Maximum number of extra login processes to create. The extra process count |
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105 # usually stays at login_processes_count, but when multiple users start logging |
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106 # in at the same time more extra processes are created. To prevent fork-bombing |
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107 # we check only once in a second if new processes should be created - if all |
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108 # of them are used at the time, we double their amount until limit set by this |
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109 # setting is reached. This setting is used only if login_process_per_use is yes. |
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110 #login_max_processes_count = 128 |
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111 |
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113 # reached, the oldest connections are dropped. If login_process_per_user |
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114 # is no, this is a per-process value, so the absolute maximum number of users |
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115 # logging in actually login_processes_count * max_logging_users. |
0 | 116 #max_logging_users = 256 |
117 | |
118 ## | |
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119 ## POP3 login process |
0 | 120 ## |
121 | |
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122 # Settings default to same as above, so you don't have to set anything |
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123 # unless you want to override them. |
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124 |
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125 login = pop3 |
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126 |
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127 # Exception to above rule being the executable location. |
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128 #login_executable = /usr/libexec/dovecot/pop3-login |
0 | 129 |
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130 ## |
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131 ## Mail processes |
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132 ## |
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133 |
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134 # Maximum number of running mail processes. When this limit is reached, |
0 | 135 # new users aren't allowed to log in. |
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136 #max_mail_processes = 1024 |
0 | 137 |
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138 # Show more verbose process titles (in ps). Currently shows user name and |
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139 # IP address. Useful for seeing who are actually using the IMAP processes |
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140 # (eg. shared mailboxes or if same uid is used for multiple accounts). |
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141 #verbose_proctitle = no |
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142 |
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143 # Valid UID/GID ranges for users, defaults to 500 and above. |
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144 # Note that denying root logins is hardcoded to dovecot-master binary and |
0 | 145 # can't be done even if first_valid_uid is set to 0. |
146 #first_valid_uid = 500 | |
147 #last_valid_uid = 0 | |
148 | |
149 #first_valid_gid = 1 | |
150 #last_valid_gid = 0 | |
151 | |
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152 # ':' separated list of directories under which chrooting is allowed for mail |
0 | 153 # processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too). |
978 | 154 # This setting doesn't affect login_chroot or auth_chroot variables. |
0 | 155 # WARNING: Never add directories here which local users can modify, that |
156 # may lead to root exploit. Usually this should be done only if you don't | |
979 | 157 # allow shell access for users. See doc/configuration.txt for more information. |
0 | 158 #valid_chroot_dirs = |
159 | |
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160 # Default MAIL environment to use when it's not set. By leaving this empty |
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161 # dovecot tries to do some automatic detection as described in |
813
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162 # doc/mail-storages.txt. There's a few special variables you can use: |
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163 # |
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164 # %u - username |
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165 # %n - user part in user@domain, same as %u if there's no domain |
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166 # %d - domain part in user@domain, empty if user there's no domain |
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167 # %h - home directory |
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168 # |
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169 # You can also limit a width of string by giving the number of max. characters |
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170 # after the '%' character. For example %1u gives the first character of |
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171 # username. Some examples: |
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172 # |
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173 # maildir:/var/mail/%1u/%u/Maildir |
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174 # mbox:~/mail/:INBOX=/var/mail/%u |
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175 # mbox:/var/mail/%d/%n/:INDEX=/var/indexes/%d/%n |
813
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176 # |
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177 #default_mail_env = |
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178 |
462
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179 # Space-separated list of fields to cache for all mails. Currently these |
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180 # fields are allowed followed by a list of commands they speed up: |
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181 # |
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182 # Envelope - FETCH ENVELOPE and SEARCH FROM, TO, CC, BCC, SUBJECT, |
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183 # SENTBEFORE, SENTON, SENTSINCE, HEADER MESSAGE-ID, |
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184 # HEADER IN-REPLY-TO |
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185 # Body - FETCH BODY |
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186 # Bodystructure - FETCH BODY, BODYSTRUCTURE |
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187 # MessagePart - FETCH BODY[1.2.3] (ie. body parts), RFC822.SIZE, |
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188 # SEARCH SMALLER, LARGER, also speeds up BODY/BODYSTRUCTURE |
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189 # generation. This is always set with mbox mailboxes, and |
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190 # also default with Maildir. |
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191 # |
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192 # Different IMAP clients work in different ways, that's why Dovecot by default |
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193 # only caches MessagePart which speeds up most operations. Whenever client |
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194 # does something where caching could be used, the field is automatically marked |
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195 # to be cached later. For example after FETCH BODY the BODY will be cached |
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196 # for all new messages. Normally you should leave this alone, unless you know |
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197 # what most of your IMAP clients are. Caching more fields than needed makes |
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198 # the index files larger and generate useless I/O. |
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199 # |
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200 # With maildir there's one extra optimization - if nothing is cached, indexing |
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201 # the maildir becomes much faster since it's not opening any of the mail files. |
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202 # This could be useful if your IMAP clients access only new mails. |
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203 |
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204 #mail_cache_fields = MessagePart |
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205 |
987 | 206 # Space-separated list of fields that Dovecot should never set to be cached. |
207 # Useful if you want to save disk space at the cost of more I/O when the fields | |
208 # needed. | |
209 #mail_never_cache_fields = | |
210 | |
600
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211 # Dovecot can notify client of new mail in selected mailbox soon after it's |
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212 # received. This setting specifies the minimum interval in seconds between |
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213 # new mail notifications to client - internally they may be checked more or |
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214 # less often. Setting this to 0 disables the checking. |
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215 # NOTE: Evolution client breaks with this option when it's trying to APPEND. |
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216 #mailbox_check_interval = 0 |
600
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217 |
472
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218 # Save mails with CR+LF instead of plain LF. This makes sending those mails |
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219 # take less CPU, especially with sendfile() syscall with Linux and FreeBSD. |
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220 # But it also creates a bit more disk I/O which may just make it slower. |
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221 #mail_save_crlf = no |
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222 |
644
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223 # Use mmap() instead of read() to read mail files. read() seems to be a bit |
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224 # faster with my Linux/x86 and it's better with NFS, so that's the default. |
987 | 225 # Currently mmap()ing is forced with mbox - this is a bug and will be fixed. |
644
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226 #mail_read_mmaped = no |
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227 |
0 | 228 # Copy mail to another folders using hard links. This is much faster than |
987 | 229 # actually copying the file. This is problematic only if something modifies |
230 # the mail in one folder but doesn't want it modified in the others. I don't | |
231 # know any MUA which would modify mail files directly. IMAP protocol also | |
232 # requires that the mails don't change, so it would be problematic in any case. | |
233 # If you care about performance, enable it. | |
0 | 234 #maildir_copy_with_hardlinks = no |
235 | |
236 # Check if mails' content has been changed by external programs. This slows | |
882
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237 # down things as extra stat() needs to be called for each file. If changes are |
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238 # noticed, the message is treated as a new message, since IMAP protocol |
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239 # specifies that existing message are immutable. |
0 | 240 #maildir_check_content_changes = no |
241 | |
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242 # Which locking methods to use for locking mbox. There's three available: |
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243 # dotlock: Create <mailbox>.lock file. This is the oldest and most NFS-safe |
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244 # solution. If you want to use /var/mail/ like directory, the users |
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245 # will need write access to that directory. |
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246 # fcntl : Use this if possible. Works with NFS too if lockd is used. |
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247 # flock : May not exist in all systems. Doesn't work with NFS. |
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248 # |
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249 # You can use both fcntl and flock too; if you do the order they're declared |
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250 # with is important to avoid deadlocks if other MTAs/MUAs are using both fcntl |
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251 # and flock. If dotlock is used, it's always created first. |
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252 #mbox_locks = dotlock fcntl |
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253 |
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254 # Should we create dotlock file even when we want only a read-lock? Setting |
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255 # this to yes hurts the performance when the mailbox is accessed simultaneously |
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256 # by multiple processes, but it's needed for reliable reading if no other |
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257 # locking methods are available. |
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258 #mbox_read_dotlock = no |
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259 |
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260 # Maximum time in seconds to wait for lock (all of them) before aborting. |
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261 #mbox_lock_timeout = 300 |
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262 |
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263 # If dotlock exists but the mailbox isn't modified in any way, override the |
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264 # lock file after this many seconds. |
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265 #mbox_dotlock_change_timeout = 30 |
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266 |
101
edc37d046b08
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267 # If main index file is incompatible with us, should we overwrite it or |
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268 # create a new index with another name. Unless you are running Dovecot in |
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269 # multiple computers with different architectures accessing the same |
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270 # mailboxes (eg. via NFS), it's safe to set this "yes". |
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271 #overwrite_incompatible_index = no |
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272 |
0 | 273 # umask to use for mail files and directories |
274 #umask = 0077 | |
275 | |
276 ## | |
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277 ## IMAP process |
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278 ## |
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279 |
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280 # Executable location |
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281 #imap_executable = /usr/libexec/dovecot/imap |
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282 |
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283 # Set max. process size in megabytes. Most of the memory goes to mmap()ing |
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284 # files, so it shouldn't harm much even if this limit is set pretty high. |
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285 #imap_process_size = 256 |
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286 |
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287 ## |
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288 ## POP3 process |
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289 ## |
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290 |
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291 # Executable location |
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292 #pop3_executable = /usr/libexec/dovecot/pop3 |
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293 |
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294 # Set max. process size in megabytes. Most of the memory goes to mmap()ing |
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295 # files, so it shouldn't harm much even if this limit is set pretty high. |
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296 #pop3_process_size = 256 |
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297 |
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298 ## |
0 | 299 ## Authentication processes |
300 ## | |
301 | |
302 # You can have multiple processes; each time "auth = xx" is seen, a new | |
303 # process definition is started. The point of multiple processes is to be | |
304 # able to set stricter permissions to others. For example, plain/PAM | |
305 # authentication requires roots, but if you also use digest-md5 authentication | |
306 # for some users, you can authenticate them without any privileges in a | |
307 # separate auth process. Just remember that only one auth process is asked | |
308 # for the password, so you can't have different passwords with different | |
309 # processes (unless they have different auth methods, and you're ok with | |
310 # having different password for each method). | |
311 | |
312 # Authentication process name. | |
313 auth = default | |
314 | |
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315 # Space separated list of wanted authentication mechanisms: |
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316 # plain digest-md5 |
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317 auth_mechanisms = plain |
0 | 318 |
319 # Space separated list of realms with authentication methods that need them. | |
320 # This is usually empty or the host name of the server (eg. | |
321 # mail.mycompany.com). | |
322 # - plain auth checks the password from all realms specified in here | |
323 # - digest-md5 must have the password added for each realm separately, and | |
324 # many clients simply use the first realm listed here. so if you really | |
325 # need to add more realms, add them to end of the list. | |
326 #auth_realms = | |
327 | |
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328 # Where user database is kept: |
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329 # passwd: /etc/passwd or similiar, using getpwnam() |
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330 # passwd-file <path>: passwd-like file with specified location |
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331 # static uid=<uid> gid=<gid> home=<dir template>: static settings |
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332 # vpopmail: vpopmail library |
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333 auth_userdb = passwd |
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334 |
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335 # Where password database is kept: |
0 | 336 # passwd: /etc/passwd or similiar, using getpwnam() |
337 # shadow: /etc/shadow or similiar, using getspnam() | |
338 # pam: PAM authentication | |
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339 # passwd-file <path>: passwd-like file with specified location |
280
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340 # vpopmail: vpopmail authentication |
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341 auth_passdb = pam |
0 | 342 |
343 # Executable location | |
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344 #auth_executable = /usr/libexec/dovecot/dovecot-auth |
0 | 345 |
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346 # Set max. process size in megabytes. |
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347 #auth_process_size = 256 |
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348 |
0 | 349 # User to use for the process. Only shadow and pam authentication requires |
350 # roots, so use something else if possible. | |
351 auth_user = root | |
352 | |
435 | 353 # Directory where to chroot the process. Most authentication backends don't |
354 # work if this is set, and there's no point chrooting if auth_user is root. | |
0 | 355 #auth_chroot = |
356 | |
357 # Number of authentication processes to create | |
358 #auth_count = 1 | |
359 | |
999 | 360 # More verbose logging. Useful for figuring out why authentication isn't |
361 # working. | |
362 #auth_verbose = no | |
0 | 363 |
364 # digest-md5 authentication process. It requires special MD5 passwords which | |
365 # /etc/shadow and PAM doesn't support, so we never need roots to handle it. | |
366 # Note that the passwd-file is opened before chrooting and dropping root | |
367 # privileges, so it may be 0600-root owned file. | |
368 | |
369 #auth = digest_md5 | |
370 #auth_methods = digest-md5 | |
371 #auth_realms = | |
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372 #auth_userdb = passwd-file /etc/passwd.imap |
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373 #auth_passdb = passwd-file /etc/passwd.imap |
0 | 374 #auth_user = imapauth |
375 #auth_chroot = /var/run/dovecot/auth | |
376 | |
377 # if you plan to use only passwd-file, you don't need the two auth processes, | |
378 # simply set "auth_methods = plain digest-md5" |