Moving dovecot.conf to a template

1 files changed, 0 insertions, 1144 deletions

diff --git a/files/dovecot/dovecot.conf b/files/dovecot/dovecot.conf
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--- a/files/dovecot/dovecot.conf
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-## Dovecot configuration file
-
-# If you're in a hurry, see http://wiki.dovecot.org/QuickConfiguration
-
-# "dovecot -n" command gives a clean output of the changed settings. Use it
-# instead of copy&pasting this file when posting to the Dovecot mailing list.
-
-# '#' character and everything after it is treated as comments. Extra spaces
-# and tabs are ignored. If you want to use either of these explicitly, put the
-# value inside quotes, eg.: key = "# char and trailing whitespace  "
-
-# Default values are shown for each setting, it's not required to uncomment
-# any of the lines. Exception to this are paths, they're just examples with
-# the real defaults being based on configure options. The paths listed here
-# are for configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
-# --with-ssldir=/etc/ssl
-
-# Base directory where to store runtime data.
-#base_dir = /var/run/dovecot/
-
-# Protocols we want to be serving: imap imaps pop3 pop3s managesieve
-# If you only want to use dovecot-auth, you can set this to "none".
-#protocols = imap imaps
-protocols = imap imaps
-
-# IP or host address where to listen in for connections. It's not currently
-# possible to specify multiple addresses. "*" listens in all IPv4 interfaces.
-# "[::]" listens in all IPv6 interfaces, but may also listen in all IPv4
-# interfaces depending on the operating system.
-#
-# If you want to specify ports for each service, you will need to configure
-# these settings inside the protocol imap/pop3/managesieve { ... } section, 
-# so you can specify different ports for IMAP/POP3/MANAGESIEVE. For example:
-#   protocol imap {
-#     listen = *:10143
-#     ssl_listen = *:10943
-#     ..
-#   }
-#   protocol pop3 {
-#     listen = *:10100
-#     ..
-#   }
-#   protocol managesieve {
-#     listen = *:12000
-#     ..
-#   }
-#listen = *
-
-# Disable LOGIN command and all other plaintext authentications unless
-# SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
-# matches the local IP (ie. you're connecting from the same computer), the
-# connection is considered secure and plaintext authentication is allowed.
-#disable_plaintext_auth = yes
-
-# Should all IMAP and POP3 processes be killed when Dovecot master process
-# shuts down. Setting this to "no" means that Dovecot can be upgraded without
-# forcing existing client connections to close (although that could also be
-# a problem if the upgrade is eg. because of a security fix). This however
-# means that after master process has died, the client processes can't write
-# to log files anymore.
-#shutdown_clients = yes
-
-##
-## Logging
-##
-
-# Log file to use for error messages, instead of sending them to syslog.
-# /dev/stderr can be used to log into stderr.
-#log_path = 
-
-# Log file to use for informational and debug messages.
-# Default is the same as log_path.
-#info_log_path = 
-
-# Prefix for each line written to log file. % codes are in strftime(3)
-# format.
-#log_timestamp = "%b %d %H:%M:%S "
-log_timestamp = "%Y-%m-%d %H:%M:%S "
-
-# Syslog facility to use if you're logging to syslog. Usually if you don't
-# want to use "mail", you'll use local0..local7. Also other standard
-# facilities are supported.
-#syslog_facility = mail
-
-##
-## SSL settings
-##
-
-# IP or host address where to listen in for SSL connections. Defaults
-# to above if not specified.
-#ssl_listen =
-
-# Disable SSL/TLS support.
-#ssl_disable = no
-
-# PEM encoded X.509 SSL/TLS certificate and private key. They're opened before
-# dropping root privileges, so keep the key file unreadable by anyone but
-# root.
-#ssl_cert_file = /etc/ssl/certs/dovecot.pem
-#ssl_key_file = /etc/ssl/private/dovecot.pem
-ssl_cert_file = /etc/ssl/certs/cert.crt
-ssl_key_file = /etc/ssl/private/cert.pem
-
-# If key file is password protected, give the password here. Alternatively
-# give it when starting dovecot with -p parameter.
-#ssl_key_password =
-
-# File containing trusted SSL certificate authorities. Set this only if you
-# intend to use ssl_verify_client_cert=yes. The CAfile should contain the
-# CA-certificate(s) followed by the matching CRL(s).
-#ssl_ca_file = 
-
-# Request client to send a certificate. If you also want to require it, set
-# ssl_require_client_cert=yes in auth section.
-#ssl_verify_client_cert = no
-
-# How often to regenerate the SSL parameters file. Generation is quite CPU
-# intensive operation. The value is in hours, 0 disables regeneration
-# entirely.
-#ssl_parameters_regenerate = 168
-
-# SSL ciphers to use
-#ssl_cipher_list = ALL:!LOW
-
-# Show protocol level SSL errors.
-#verbose_ssl = no
-
-##
-## Login processes
-##
-
-# <doc/wiki/LoginProcess.txt>
-
-# Directory where authentication process places authentication UNIX sockets
-# which login needs to be able to connect to. The sockets are created when
-# running as root, so you don't have to worry about permissions. Note that
-# everything in this directory is deleted when Dovecot is started.
-#login_dir = /var/run/dovecot/login
-
-# chroot login process to the login_dir. Only reason not to do this is if you
-# wish to run the whole Dovecot without roots. <doc/wiki/Rootless.txt>
-#login_chroot = yes
-
-# User to use for the login process. Create a completely new user for this,
-# and don't use it anywhere else. The user must also belong to a group where
-# only it has access, it's used to control access for authentication process.
-# Note that this user is NOT used to access mails. <doc/wiki/UserIds.txt>
-#login_user = dovecot
-
-# Set max. process size in megabytes. If you don't use
-# login_process_per_connection you might need to grow this.
-#login_process_size = 64
-
-# Should each login be processed in it's own process (yes), or should one
-# login process be allowed to process multiple connections (no)? Yes is more
-# secure, espcially with SSL/TLS enabled. No is faster since there's no need
-# to create processes all the time.
-#login_process_per_connection = yes
-
-# Number of login processes to keep for listening new connections.
-#login_processes_count = 3
-
-# Maximum number of login processes to create. The listening process count
-# usually stays at login_processes_count, but when multiple users start logging
-# in at the same time more extra processes are created. To prevent fork-bombing
-# we check only once in a second if new processes should be created - if all
-# of them are used at the time, we double their amount until the limit set by
-# this setting is reached.
-#login_max_processes_count = 128
-
-# Maximum number of connections allowed per each login process. This setting
-# is used only if login_process_per_connection=no. Once the limit is reached,
-# the process notifies master so that it can create a new login process.
-# You should make sure that the process has at least
-# 16 + login_max_connections * 2 available file descriptors.
-#login_max_connections = 256
-
-# Greeting message for clients.
-#login_greeting = Dovecot ready.
-
-# Space-separated list of elements we want to log. The elements which have
-# a non-empty variable value are joined together to form a comma-separated
-# string.
-#login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c
-
-# Dont log user IPs
-login_log_format_elements = user=<%u> method=%m %c
-
-# Login log format. %$ contains login_log_format_elements string, %s contains
-# the data we want to log.
-#login_log_format = %$: %s
-
-##
-## Mailbox locations and namespaces
-##
-
-# Location for users' mailboxes. This is the same as the old default_mail_env
-# setting. The default is empty, which means that Dovecot tries to find the
-# mailboxes automatically. This won't work if the user doesn't have any mail
-# yet, so you should explicitly tell Dovecot the full location.
-#
-# If you're using mbox, giving a path to the INBOX file (eg. /var/mail/%u)
-# isn't enough. You'll also need to tell Dovecot where the other mailboxes are
-# kept. This is called the "root mail directory", and it must be the first
-# path given in the mail_location setting.
-#
-# There are a few special variables you can use, eg.:
-#
-#   %u - username
-#   %n - user part in user@domain, same as %u if there's no domain
-#   %d - domain part in user@domain, empty if there's no domain
-#   %h - home directory
-#
-# See /usr/share/doc/dovecot-common/wiki/Variables.txt for full list. Some
-# examples:
-#
-#   mail_location = maildir:~/Maildir
-#   mail_location = mbox:~/mail:INBOX=/var/mail/%u
-#   mail_location = mbox:/var/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n
-#
-# <doc/wiki/MailLocation.txt>
-#
-#mail_location = 
-mail_location = maildir:/var/mail/virtual/%u
-
-# If you need to set multiple mailbox locations or want to change default
-# namespace settings, you can do it by defining namespace sections.
-# NOTE: Namespaces currently work ONLY with IMAP! POP3 and LDA currently ignore
-# namespaces completely, they use only the mail_location setting.
-#
-# You can have private, shared and public namespaces. The only difference
-# between them is how Dovecot announces them to client via NAMESPACE
-# extension. Shared namespaces are meant for user-owned mailboxes which are
-# shared to other users, while public namespaces are for more globally
-# accessible mailboxes.
-#
-# REMEMBER: If you add any namespaces, the default namespace must be added
-# explicitly, ie. mail_location does nothing unless you have a namespace
-# without a location setting. Default namespace is simply done by having a
-# namespace with empty prefix.
-#namespace private {
-   # Hierarchy separator to use. You should use the same separator for all
-   # namespaces or some clients get confused. '/' is usually a good one.
-   # The default however depends on the underlying mail storage format.
-   #separator = 
-
-   # Prefix required to access this namespace. This needs to be different for
-   # all namespaces. For example "Public/".
-   #prefix = 
-
-   # Physical location of the mailbox. This is in same format as
-   # mail_location, which is also the default for it.
-   #location =
-
-   # There can be only one INBOX, and this setting defines which namespace
-   # has it.
-   #inbox = yes
-
-   # If namespace is hidden, it's not advertised to clients via NAMESPACE
-   # extension or shown in LIST replies. This is mostly useful when converting
-   # from another server with different namespaces which you want to depricate
-   # but still keep working. For example you can create hidden namespaces with
-   # prefixes "~/mail/", "~%u/mail/" and "mail/".
-   #hidden = yes
-#}
-
-# Group to enable temporarily for privileged operations. Currently this is
-# used only with INBOX when either its initial creation or dotlocking fails.
-# Typically this is set to "mail" to give access to /var/mail.
-mail_privileged_group = mail
-
-# Grant access to these supplementary groups for mail processes. Typically
-# these are used to set up access to shared mailboxes. Note that it may be
-# dangerous to set these if users can create symlinks (e.g. if "mail" group is
-# set here, ln -s /var/mail ~/mail/var could allow a user to delete others'
-# mailboxes, or ln -s /secret/shared/box ~/mail/mybox would allow reading it).
-#mail_access_groups =
-
-# Allow full filesystem access to clients. There's no access checks other than
-# what the operating system does for the active UID/GID. It works with both
-# maildir and mboxes, allowing you to prefix mailboxes names with eg. /path/
-# or ~user/.
-#mail_full_filesystem_access = no
-
-##
-## Mail processes
-##
-
-# Enable mail process debugging. This can help you figure out why Dovecot
-# isn't finding your mails.
-#mail_debug = no
-
-# Log prefix for mail processes.
-# See /usr/share/doc/dovecot-common/wiki/Variables.txt for list of possible
-# variables you can use.
-#mail_log_prefix = "%Us(%u): "
-
-# Max. number of lines a mail process is allowed to log per second before it's
-# throttled. 0 means unlimited. Typically there's no need to change this
-# unless you're using mail_log plugin, which may log a lot.
-#mail_log_max_lines_per_sec = 10
-
-# Don't use mmap() at all. This is required if you store indexes to shared
-# filesystems (NFS or clustered filesystem).
-#mmap_disable = no
-
-# Don't write() to mmaped files. This is required for some operating systems
-# which use separate caches for them, such as OpenBSD.
-#mmap_no_write = no
-
-# Rely on O_EXCL to work when creating dotlock files. The default is to use
-# hard linking. O_EXCL makes the dotlocking faster, but it doesn't always
-# work with NFS.
-#dotlock_use_excl = no
-
-# Don't use fsync() or fdatasync() calls. This makes the performance better
-# at the cost of potential data loss if the server (or the file server)
-# goes down.
-#fsync_disable = no
-
-# Locking method for index files. Alternatives are fcntl, flock and dotlock.
-# Dotlocking uses some tricks which may create more disk I/O than other locking
-# methods. NFS users: flock doesn't work, remember to change mmap_disable.
-#lock_method = fcntl
-
-# Drop all privileges before exec()ing the mail process. This is mostly
-# meant for debugging, otherwise you don't get core dumps. It could be a small
-# security risk if you use single UID for multiple users, as the users could
-# ptrace() each others processes then.
-#mail_drop_priv_before_exec = no
-
-# Show more verbose process titles (in ps). Currently shows user name and
-# IP address. Useful for seeing who are actually using the IMAP processes
-# (eg. shared mailboxes or if same uid is used for multiple accounts).
-#verbose_proctitle = no
-
-# Valid UID range for users, defaults to 500 and above. This is mostly
-# to make sure that users can't log in as daemons or other system users.
-# Note that denying root logins is hardcoded to dovecot binary and can't
-# be done even if first_valid_uid is set to 0.
-#first_valid_uid = 500
-#last_valid_uid = 0
-
-# Valid GID range for users, defaults to non-root/wheel. Users having
-# non-valid GID as primary group ID aren't allowed to log in. If user
-# belongs to supplementary groups with non-valid GIDs, those groups are
-# not set.
-#first_valid_gid = 1
-#last_valid_gid = 0
-
-# Maximum number of running mail processes. When this limit is reached,
-# new users aren't allowed to log in.
-#max_mail_processes = 1024
-
-# Set max. process size in megabytes. Most of the memory goes to mmap()ing
-# files, so it shouldn't harm much even if this limit is set pretty high.
-#mail_process_size = 256
-
-# Maximum allowed length for mail keyword name. It's only forced when trying
-# to create new keywords.
-#mail_max_keyword_length = 50
-
-# ':' separated list of directories under which chrooting is allowed for mail
-# processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too).
-# This setting doesn't affect login_chroot or auth chroot variables.
-# WARNING: Never add directories here which local users can modify, that
-# may lead to root exploit. Usually this should be done only if you don't
-# allow shell access for users. <doc/wiki/Chrooting.txt>
-#valid_chroot_dirs = 
-
-# Default chroot directory for mail processes. This can be overridden for
-# specific users in user database by giving /./ in user's home directory
-# (eg. /home/./user chroots into /home). Note that usually there is no real
-# need to do chrooting, Dovecot doesn't allow users to access files outside
-# their mail directory anyway. <doc/wiki/Chrooting.txt>
-#mail_chroot = 
-
-##
-## Mailbox handling optimizations
-##
-
-# Space-separated list of fields to initially save into cache file. Currently
-# these fields are allowed:
-#
-#  flags, date.sent, date.received, size.virtual, size.physical
-#  mime.parts, imap.body, imap.bodystructure
-#
-# Different IMAP clients work in different ways, so they benefit from
-# different cached fields. Some do not benefit from them at all. Caching more
-# than necessary generates useless disk I/O, so you don't want to do that
-# either.
-#
-# Dovecot attempts to automatically figure out what client wants and it keeps
-# only that. However the first few times a mailbox is opened, Dovecot hasn't
-# yet figured out what client needs, so it may not perform optimally. If you
-# know what fields the majority of your clients need, it may be useful to set
-# these fields by hand. If client doesn't actually use them, Dovecot will
-# eventually drop them.
-#
-# Usually you should just leave this field alone. The potential benefits are
-# typically unnoticeable.
-#mail_cache_fields = 
-
-# Space-separated list of fields that Dovecot should never save to cache file.
-# Useful if you want to save disk space at the cost of more I/O when the fields
-# needed.
-#mail_never_cache_fields = 
-
-# The minimum number of mails in a mailbox before updates are done to cache
-# file. This allows optimizing Dovecot's behavior to do less disk writes at
-# the cost of more disk reads.
-#mail_cache_min_mail_count = 0
-
-# When IDLE command is running, mailbox is checked once in a while to see if
-# there are any new mails or other changes. This setting defines the minimum
-# time in seconds to wait between those checks. Dovecot can also use dnotify,
-# inotify and kqueue to find out immediately when changes occur.
-#mailbox_idle_check_interval = 30
-
-# Save mails with CR+LF instead of plain LF. This makes sending those mails
-# take less CPU, especially with sendfile() syscall with Linux and FreeBSD.
-# But it also creates a bit more disk I/O which may just make it slower.
-# Also note that if other software reads the mboxes/maildirs, they may handle
-# the extra CRs wrong and cause problems.
-#mail_save_crlf = no
-
-##
-## Maildir-specific settings
-##
-
-# By default LIST command returns all entries in maildir beginning with a dot.
-# Enabling this option makes Dovecot return only entries which are directories.
-# This is done by stat()ing each entry, so it causes more disk I/O.
-# (For systems setting struct dirent->d_type, this check is free and it's
-# done always regardless of this setting)
-#maildir_stat_dirs = no
-
-# When copying a message, do it with hard links whenever possible. This makes
-# the performance much better, and it's unlikely to have any side effects.
-#maildir_copy_with_hardlinks = no
-
-# When copying a message, try to preserve the base filename. Only if the
-# destination mailbox already contains the same name (ie. the mail is being
-# copied there twice), a new name is given. The destination filename check is
-# done only by looking at dovecot-uidlist file, so if something outside
-# Dovecot does similar filename preserving copies, you may run into problems.
-# NOTE: This setting requires maildir_copy_with_hardlinks = yes to work.
-#maildir_copy_preserve_filename = no
-
-##
-## mbox-specific settings
-##
-
-# Which locking methods to use for locking mbox. There are four available:
-#  dotlock: Create <mailbox>.lock file. This is the oldest and most NFS-safe
-#           solution. If you want to use /var/mail/ like directory, the users
-#           will need write access to that directory.
-#  fcntl  : Use this if possible. Works with NFS too if lockd is used.
-#  flock  : May not exist in all systems. Doesn't work with NFS.
-#  lockf  : May not exist in all systems. Doesn't work with NFS.
-#
-# You can use multiple locking methods; if you do the order they're declared
-# in is important to avoid deadlocks if other MTAs/MUAs are using multiple
-# locking methods as well. Some operating systems don't allow using some of
-# them simultaneously.
-#mbox_read_locks = fcntl
-#mbox_write_locks = dotlock fcntl
-
-# Maximum time in seconds to wait for lock (all of them) before aborting.
-#mbox_lock_timeout = 300
-
-# If dotlock exists but the mailbox isn't modified in any way, override the
-# lock file after this many seconds.
-#mbox_dotlock_change_timeout = 120
-
-# When mbox changes unexpectedly we have to fully read it to find out what
-# changed. If the mbox is large this can take a long time. Since the change
-# is usually just a newly appended mail, it'd be faster to simply read the
-# new mails. If this setting is enabled, Dovecot does this but still safely
-# fallbacks to re-reading the whole mbox file whenever something in mbox isn't
-# how it's expected to be. The only real downside to this setting is that if
-# some other MUA changes message flags, Dovecot doesn't notice it immediately.
-# Note that a full sync is done with SELECT, EXAMINE, EXPUNGE and CHECK 
-# commands.
-#mbox_dirty_syncs = yes
-
-# Like mbox_dirty_syncs, but don't do full syncs even with SELECT, EXAMINE,
-# EXPUNGE or CHECK commands. If this is set, mbox_dirty_syncs is ignored.
-#mbox_very_dirty_syncs = no
-
-# Delay writing mbox headers until doing a full write sync (EXPUNGE and CHECK
-# commands and when closing the mailbox). This is especially useful for POP3
-# where clients often delete all mails. The downside is that our changes
-# aren't immediately visible to other MUAs.
-#mbox_lazy_writes = yes
-
-# If mbox size is smaller than this (in kilobytes), don't write index files.
-# If an index file already exists it's still read, just not updated.
-#mbox_min_index_size = 0
-
-##
-## dbox-specific settings
-##
-
-# Maximum dbox file size in kilobytes until it's rotated.
-#dbox_rotate_size = 2048
-
-# Minimum dbox file size in kilobytes before it's rotated
-# (overrides dbox_rotate_days)
-#dbox_rotate_min_size = 16
-
-# Maximum dbox file age in days until it's rotated. Day always begins from
-# midnight, so 1 = today, 2 = yesterday, etc. 0 = check disabled.
-#dbox_rotate_days = 0
-
-##
-## IMAP specific settings
-##
-
-protocol imap {
-  # Login executable location.
-  #login_executable = /usr/lib/dovecot/imap-login
-
-  # IMAP executable location. Changing this allows you to execute other
-  # binaries before the imap process is executed.
-  #
-  # This would write rawlogs into ~/dovecot.rawlog/ directory:
-  #   mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap
-  #
-  # This would attach gdb into the imap process and write backtraces into
-  # /tmp/gdbhelper.* files:
-  #   mail_executable = /usr/libexec/dovecot/gdbhelper /usr/libexec/dovecot/imap
-  #
-  #mail_executable = /usr/lib/dovecot/imap
-
-  # Maximum IMAP command line length in bytes. Some clients generate very long
-  # command lines with huge mailboxes, so you may need to raise this if you get
-  # "Too long argument" or "IMAP command line too large" errors often.
-  #imap_max_line_length = 65536
-
-  # Support for dynamically loadable plugins. mail_plugins is a space separated
-  # list of plugins to load.
-  #mail_plugins = 
-  #mail_plugin_dir = /usr/lib/dovecot/modules/imap
-
-  # Send IMAP capabilities in greeting message. This makes it unnecessary for
-  # clients to request it with CAPABILITY command, so it saves one round-trip.
-  # Many clients however don't understand it and ask the CAPABILITY anyway.
-  #login_greeting_capability = no
-
-  # Override the IMAP CAPABILITY response.
-  #imap_capability = 
-
-  # Workarounds for various client bugs:
-  #   delay-newmail:
-  #     Send EXISTS/RECENT new mail notifications only when replying to NOOP
-  #     and CHECK commands. Some clients ignore them otherwise, for example OSX
-  #     Mail (<v2.1). Outlook Express breaks more badly though, without this it
-  #     may show user "Message no longer in server" errors. Note that OE6 still
-  #     breaks even with this workaround if synchronization is set to
-  #     "Headers Only".
-  #   outlook-idle:
-  #     Outlook and Outlook Express never abort IDLE command, so if no mail
-  #     arrives in half a hour, Dovecot closes the connection. This is still
-  #     fine, except Outlook doesn't connect back so you don't see if new mail
-  #     arrives.
-  #   netscape-eoh:
-  #     Netscape 4.x breaks if message headers don't end with the empty "end of
-  #     headers" line. Normally all messages have this, but setting this
-  #     workaround makes sure that Netscape never breaks by adding the line if
-  #     it doesn't exist. This is done only for FETCH BODY[HEADER.FIELDS..]
-  #     commands. Note that RFC says this shouldn't be done.
-  #   tb-extra-mailbox-sep:
-  #     With mbox storage a mailbox can contain either mails or submailboxes,
-  #     but not both. Thunderbird separates these two by forcing server to
-  #     accept '/' suffix in mailbox names in subscriptions list.
-  # The list is space-separated.
-  #imap_client_workarounds = outlook-idle
-}
-  
-##
-## POP3 specific settings
-##
-
-protocol pop3 {
-  # Login executable location.
-  #login_executable = /usr/lib/dovecot/pop3-login
-
-  # POP3 executable location. See IMAP's mail_executable above for examples
-  # how this could be changed.
-  #mail_executable = /usr/lib/dovecot/pop3
-
-  # Don't try to set mails non-recent or seen with POP3 sessions. This is
-  # mostly intended to reduce disk I/O. With maildir it doesn't move files
-  # from new/ to cur/, with mbox it doesn't write Status-header.
-  #pop3_no_flag_updates = no
-
-  # Support LAST command which exists in old POP3 specs, but has been removed
-  # from new ones. Some clients still wish to use this though. Enabling this
-  # makes RSET command clear all \Seen flags from messages.
-  #pop3_enable_last = no
-
-  # If mail has X-UIDL header, use it as the mail's UIDL.
-  #pop3_reuse_xuidl = no
-
-  # Keep the mailbox locked for the entire POP3 session.
-  #pop3_lock_session = no
-
-  # POP3 UIDL (unique mail identifier) format to use. You can use following
-  # variables:
-  #
-  #  %v - Mailbox's IMAP UIDVALIDITY
-  #  %u - Mail's IMAP UID
-  #  %m - MD5 sum of the mailbox headers in hex (mbox only)
-  #  %f - filename (maildir only)
-  #
-  # If you want UIDL compatibility with other POP3 servers, use:
-  #  UW's ipop3d         : %08Xv%08Xu
-  #  Courier version 0   : %f
-  #  Courier version 1   : %u
-  #  Courier version 2   : %v-%u
-  #  Cyrus (<= 2.1.3)    : %u
-  #  Cyrus (>= 2.1.4)    : %v.%u
-  #  Older Dovecots      : %v.%u
-  #  tpop3d              : %Mf
-  #
-  # Note that Outlook 2003 seems to have problems with %v.%u format which was
-  # Dovecot's default, so if you're building a new server it would be a good
-  # idea to change this. %08Xu%08Xv should be pretty fail-safe.
-  #
-  # NOTE: Nowadays this is required to be set explicitly, since the old
-  # default was bad but it couldn't be changed without breaking existing
-  # installations. %08Xu%08Xv will be the new default, so use it for new
-  # installations.
-  #
-  pop3_uidl_format = %08Xu%08Xv
-
-  # POP3 logout format string:
-  #  %t - number of TOP commands
-  #  %p - number of bytes sent to client as a result of TOP command
-  #  %r - number of RETR commands
-  #  %b - number of bytes sent to client as a result of RETR command
-  #  %d - number of deleted messages
-  #  %m - number of messages (before deletion)
-  #  %s - mailbox size in bytes (before deletion)
-  #pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
-
-  # Support for dynamically loadable plugins. mail_plugins is a space separated
-  # list of plugins to load.
-  #mail_plugins = 
-  #mail_plugin_dir = /usr/lib/dovecot/modules/pop3
-
-  # Workarounds for various client bugs:
-  #   outlook-no-nuls:
-  #     Outlook and Outlook Express hang if mails contain NUL characters.
-  #     This setting replaces them with 0x80 character.
-  #   oe-ns-eoh:
-  #     Outlook Express and Netscape Mail breaks if end of headers-line is
-  #     missing. This option simply sends it if it's missing.
-  # The list is space-separated.
-  #pop3_client_workarounds = 
-}
-
-##
-## MANAGESIEVE specific settings
-##
-
-protocol managesieve {
-  # Login executable location.
-  #login_executable = /usr/libexec/dovecot/managesieve-login
-
-  # MANAGESIEVE executable location. See IMAP's mail_executable above for 
-  # examples how this could be changed.
-  #mail_executable = /usr/libexec/dovecot/managesieve
-
-  # Maximum MANAGESIEVE command line length in bytes. This setting is 
-  # directly borrowed from IMAP. But, since long command lines are very
-  # unlikely with MANAGESIEVE, changing this will not be very useful.  
-  #managesieve_max_line_length = 65536
-
-  # Specifies the location of the symlink pointing to the active script in
-  # the sieve storage directory. This must match the SIEVE setting used by
-  # deliver (refer to http://wiki.dovecot.org/LDA/Sieve#location for more
-  # info). Variable substitution with % is recognized.
-  sieve=~/.dovecot.sieve
-
-  # This specifies the path to the directory where the uploaded scripts must
-  # be stored. In terms of '%' variable substitution it is identical to
-  # dovecot's mail_location setting used by the mail protocol daemons.
-  sieve_storage=~/sieve
-
-  # If, for some inobvious reason, the sieve_storage remains unset, the 
-  # managesieve daemon uses the specification of the mail_location to find out 
-  # where to store the sieve files (see explaination in README.managesieve). 
-  # The example below, when uncommented, overrides any global mail_location 
-  # specification and stores all the scripts in '~/mail/sieve' if sieve_storage 
-  # is unset. However, you should always use the sieve_storage setting.
-  # mail_location = mbox:~/mail
-
-  # To fool managesieve clients that are focused on timesieved you can
-  # specify the IMPLEMENTATION capability that the dovecot reports to clients 
-  # (default: dovecot).
-  #managesieve_implementation_string = Cyrus timsieved v2.2.13
-}
-
-##
-## LDA specific settings
-##
-
-protocol lda {
-  # Address to use when sending rejection mails.
-  # postmaster_address = postmaster@example.com
-
-  # Hostname to use in various parts of sent mails, eg. in Message-Id.
-  # Default is the system's real hostname.
-  #hostname = 
-
-  # Support for dynamically loadable plugins. mail_plugins is a space separated
-  # list of plugins to load.
-  #mail_plugins = 
-  #mail_plugin_dir = /usr/lib/dovecot/modules/lda
-
-  # Binary to use for sending mails.
-  #sendmail_path = /usr/lib/sendmail
-
-  # UNIX socket path to master authentication server to find users.
-  auth_socket_path = /var/run/dovecot/auth-master
-
-  # Enabling Sieve plugin for server-side mail filtering
-  # mail_plugins = cmusieve
-}
-
-##
-## Authentication processes
-##
-
-# Executable location
-#auth_executable = /usr/lib/dovecot/dovecot-auth
-
-# Set max. process size in megabytes.
-#auth_process_size = 256
-
-# Authentication cache size in kilobytes. 0 means it's disabled.
-# Note that bsdauth, PAM and vpopmail require cache_key to be set for caching
-# to be used.
-#auth_cache_size = 0
-# Time to live in seconds for cached data. After this many seconds the cached
-# record is no longer used, *except* if the main database lookup returns
-# internal failure. We also try to handle password changes automatically: If
-# user's previous authentication was successful, but this one wasn't, the
-# cache isn't used. For now this works only with plaintext authentication.
-#auth_cache_ttl = 3600
-
-# Space separated list of realms for SASL authentication mechanisms that need
-# them. You can leave it empty if you don't want to support multiple realms.
-# Many clients simply use the first one listed here, so keep the default realm
-# first.
-#auth_realms =
-
-# Default realm/domain to use if none was specified. This is used for both
-# SASL realms and appending @domain to username in plaintext logins.
-#auth_default_realm = 
-
-# List of allowed characters in username. If the user-given username contains
-# a character not listed in here, the login automatically fails. This is just
-# an extra check to make sure user can't exploit any potential quote escaping
-# vulnerabilities with SQL/LDAP databases. If you want to allow all characters,
-# set this value to empty.
-#auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@
-
-# Username character translations before it's looked up from databases. The
-# value contains series of from -> to characters. For example "#@/@" means
-# that '#' and '/' characters are translated to '@'.
-#auth_username_translation =
-
-# Username formatting before it's looked up from databases. You can use
-# the standard variables here, eg. %Lu would lowercase the username, %n would
-# drop away the domain if it was given, or "%n-AT-%d" would change the '@' into
-# "-AT-". This translation is done after auth_username_translation changes.
-#auth_username_format =
-
-# If you want to allow master users to log in by specifying the master
-# username within the normal username string (ie. not using SASL mechanism's
-# support for it), you can specify the separator character here. The format
-# is then <username><separator><master username>. UW-IMAP uses "*" as the
-# separator, so that could be a good choice.
-#auth_master_user_separator =
-
-# Username to use for users logging in with ANONYMOUS SASL mechanism
-#auth_anonymous_username = anonymous
-
-# More verbose logging. Useful for figuring out why authentication isn't
-# working.
-#auth_verbose = no
-
-# Even more verbose logging for debugging purposes. Shows for example SQL
-# queries.
-#auth_debug = no
-
-# In case of password mismatches, log the passwords and used scheme so the
-# problem can be debugged. Requires auth_debug=yes to be set.
-#auth_debug_passwords = no
-
-# Maximum number of dovecot-auth worker processes. They're used to execute
-# blocking passdb and userdb queries (eg. MySQL and PAM). They're
-# automatically created and destroyed as needed.
-#auth_worker_max_count = 30
-
-# Host name to use in GSSAPI principal names. The default is to use the
-# name returned by gethostname().
-#auth_gssapi_hostname =
-
-# Kerberos keytab to use for the GSSAPI mechanism. Will use the system 
-# default (usually /etc/krb5.keytab) if not specified.
-#auth_krb5_keytab = 
-
-auth default {
-  # Space separated list of wanted authentication mechanisms:
-  #   plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi
-  # NOTE: See also disable_plaintext_auth setting.
-  mechanisms = plain login
-
-  #
-  # Password database is used to verify user's password (and nothing more).
-  # You can have multiple passdbs and userdbs. This is useful if you want to
-  # allow both system users (/etc/passwd) and virtual users to login without
-  # duplicating the system users into virtual database.
-  #
-  # <doc/wiki/PasswordDatabase.txt>
-  #
-  # By adding master=yes setting inside a passdb you make the passdb a list
-  # of "master users", who can log in as anyone else. Unless you're using PAM,
-  # you probably still want the destination user to be looked up from passdb
-  # that it really exists. This can be done by adding pass=yes setting to the
-  # master passdb. <doc/wiki/Authentication.MasterUsers.txt>
-
-  # Users can be temporarily disabled by adding a passdb with deny=yes.
-  # If the user is found from that database, authentication will fail.
-  # The deny passdb should always be specified before others, so it gets
-  # checked first. Here's an example:
-
-  #passdb passwd-file {
-    # File contains a list of usernames, one per line
-    #args = /etc/dovecot.deny
-    #deny = yes
-  #}
-
-  # PAM authentication. Preferred nowadays by most systems. 
-  # Note that PAM can only be used to verify if user's password is correct,
-  # so it can't be used as userdb. If you don't want to use a separate user
-  # database (passwd usually), you can use static userdb.
-  # REMEMBER: You'll need /etc/pam.d/dovecot file created for PAM
-  # authentication to actually work. <doc/wiki/PasswordDatabase.PAM.txt>
-  passdb pam {
-    # [blocking=yes] [session=yes] [setcred=yes]
-    # [cache_key=<key>] [<service name>]
-    #
-    # By default a new process is forked from dovecot-auth for each PAM lookup.
-    # Setting blocking=yes uses the alternative way: dovecot-auth worker
-    # processes do the PAM lookups.
-    #
-    # session=yes makes Dovecot open and immediately close PAM session. Some
-    # PAM plugins need this to work, such as pam_mkhomedir.
-    #
-    # setcred=yes makes Dovecot establish PAM credentials if some PAM plugins
-    # need that. They aren't ever deleted though, so this isn't enabled by
-    # default.
-    #
-    # cache_key can be used to enable authentication caching for PAM
-    # (auth_cache_size also needs to be set). It isn't enabled by default
-    # because PAM modules can do all kinds of checks besides checking password,
-    # such as checking IP address. Dovecot can't know about these checks
-    # without some help. cache_key is simply a list of variables (see
-    # /usr/share/doc/dovecot-common/wiki/Variables.txt) which must match for
-    # the cached data to be used. Here are some examples:
-    #   %u - Username must match. Probably sufficient for most uses.
-    #   %u%r - Username and remote IP address must match.
-    #   %u%s - Username and service (ie. IMAP, POP3) must match.
-    # 
-    # If service name is "*", it means the authenticating service name
-    # is used, eg. pop3 or imap (/etc/pam.d/pop3, /etc/pam.d/imap).
-    #
-    # Some examples:
-    #   args = session=yes *
-    #   args = cache_key=%u dovecot
-    #args = dovecot
-  }
-
-  # System users (NSS, /etc/passwd, or similiar)
-  # In many systems nowadays this uses Name Service Switch, which is
-  # configured in /etc/nsswitch.conf. <doc/wiki/AuthDatabase.Passwd.txt>
-  #passdb passwd {
-    # [blocking=yes] - See userdb passwd for explanation
-    #args = 
-  #}
-
-  # Shadow passwords for system users (NSS, /etc/shadow or similiar).
-  # Deprecated by PAM nowadays.
-  # <doc/wiki/PasswordDatabase.Shadow.txt>
-  #passdb shadow {
-    # [blocking=yes] - See userdb passwd for explanation
-    #args = 
-  #}
-
-  # PAM-like authentication for OpenBSD.
-  # <doc/wiki/PasswordDatabase.BSDAuth.txt>
-  #passdb bsdauth {
-    # [cache_key=<key>] - See cache_key in PAM for explanation.
-    #args =
-  #}
-
-  # passwd-like file with specified location
-  # <doc/wiki/AuthDatabase.PasswdFile.txt>
-  #passdb passwd-file {
-    # Path for passwd-file
-    #args = 
-  #}
-
-  # checkpassword executable authentication
-  # NOTE: You will probably want to use "userdb prefetch" with this.
-  # <doc/wiki/PasswordDatabase.CheckPassword.txt>
-  #passdb checkpassword {
-    # Path for checkpassword binary
-    #args = 
-  #}
-
-  # SQL database <doc/wiki/AuthDatabase.SQL.txt>
-  passdb sql {
-    # Path for SQL configuration file
-    args = /etc/dovecot/dovecot-sql.conf
-  }
-
-  # LDAP database <doc/wiki/AuthDatabase.LDAP.txt>
-  #passdb ldap {
-    # Path for LDAP configuration file
-    #args = /etc/dovecot/dovecot-ldap.conf
-  #}
-
-  # vpopmail authentication <doc/wiki/AuthDatabase.VPopMail.txt>
-  #passdb vpopmail {
-    # [cache_key=<key>] - See cache_key in PAM for explanation.
-    #args =
-  #}
-
-  #
-  # User database specifies where mails are located and what user/group IDs
-  # own them. For single-UID configuration use "static".
-  #
-  # <doc/wiki/UserDatabase.txt>
-  #
-
-  # System users (NSS, /etc/passwd, or similiar). In many systems nowadays this
-  # uses Name Service Switch, which is configured in /etc/nsswitch.conf.
-  # <doc/wiki/AuthDatabase.Passwd.txt>
-  userdb passwd {
-    # [blocking=yes] - By default the lookups are done in the main dovecot-auth
-    # process. This setting causes the lookups to be done in auth worker
-    # proceses. Useful with remote NSS lookups that may block.
-    # NOTE: Be sure to use this setting with nss_ldap or users might get
-    # logged in as each others!
-    #args = 
-  }
-
-  # passwd-like file with specified location
-  # <doc/wiki/AuthDatabase.PasswdFile.txt>
-  #userdb passwd-file {
-    # Path for passwd-file
-    #args =
-  #}
-
-  # static settings generated from template <doc/wiki/UserDatabase.Static.txt>
-  userdb static {
-    # Template for the fields. Can return anything a userdb could normally
-    # return. For example:
-    #
-    #  args = uid=500 gid=500 home=/var/mail/%u
-    #
-    # If you use deliver, it needs to look up users only from the userdb. This
-    # of course doesn't work with static because there is no list of users.
-    # Normally static userdb handles this by doing a passdb lookup. This works
-    # with most passdbs, with PAM being the most notable exception. If you do
-    # the user verification another way, you can add allow_all_users=yes to
-    # the args in which case the passdb lookup is skipped.
-    #
-    #args =
-    args = uid=5000 gid=5000 home=/var/mail/virtual/%u allow_all_users=yes
-  }
-
-  # SQL database <doc/wiki/AuthDatabase.SQL.txt>
-  userdb sql {
-    # Path for SQL configuration file
-    args = /etc/dovecot/dovecot-sql.conf
-  }
-
-  # LDAP database <doc/wiki/AuthDatabase.LDAP.txt>
-  #userdb ldap {
-    # Path for LDAP configuration file
-    #args = /etc/dovecot/dovecot-ldap.conf
-  #}
-
-  # vpopmail <doc/wiki/AuthDatabase.VPopMail.txt>
-  #userdb vpopmail {
-  #}
-
-  # "prefetch" user database means that the passdb already provided the
-  # needed information and there's no need to do a separate userdb lookup.
-  # This can be made to work with SQL and LDAP databases, see their example
-  # configuration files for more information how to do it.
-  # <doc/wiki/UserDatabase.Prefetch.txt>
-  #userdb prefetch {
-  #}
-
-  # User to use for the process. This user needs access to only user and
-  # password databases, nothing else. Only shadow and pam authentication
-  # requires roots, so use something else if possible. Note that passwd
-  # authentication with BSDs internally accesses shadow files, which also
-  # requires roots. Note that this user is NOT used to access mails.
-  # That user is specified by userdb above.
-  user = root
-
-  # Directory where to chroot the process. Most authentication backends don't
-  # work if this is set, and there's no point chrooting if auth_user is root.
-  # Note that valid_chroot_dirs isn't needed to use this setting.
-  #chroot = 
-
-  # Number of authentication processes to create
-  #count = 1
-
-  # Require a valid SSL client certificate or the authentication fails.
-  #ssl_require_client_cert = no
-
-  # Take the username from client's SSL certificate, using 
-  # X509_NAME_get_text_by_NID() which returns the subject's DN's
-  # CommonName. 
-  #ssl_username_from_cert = no
-
-  # It's possible to export the authentication interface to other programs:
-  socket listen {
-    master {
-      # Master socket provides access to userdb information. It's typically
-      # used to give Dovecot's local delivery agent access to userdb so it
-      # can find mailbox locations.
-      path = /var/run/dovecot/auth-master
-      mode = 0600
-      # Default user/group is the one who started dovecot-auth (root)
-      user = vmail
-      group = mail
-    }
-
-    client {
-      # Assuming the default Postfix $queue_directory setting
-      path = /var/spool/postfix/private/auth
-      mode = 0660
-      # Assuming the default Postfix user and group
-      user = postfix
-      group = postfix
-    }
-  }
-
-  ## dovecot-lda specific settings
-  ##
-  # socket listen {
-  #   master {
-  #     path = /var/run/dovecot/auth-master
-  #     mode = 0600
-  #     user = mail # User running Dovecot LDA
-  #     #group = mail # Or alternatively mode 0660 + LDA user in this group
-  #   }
-  # }
-
-}
-
-# If you wish to use another authentication server than dovecot-auth, you can
-# use connect sockets. They are assumed to be already running, Dovecot's master
-# process only tries to connect to them. They don't need any other settings
-# than the path for the master socket, as the configuration is done elsewhere.
-# Note that the client sockets must exist in the login_dir.
-#auth external {
-#  socket connect {
-#    master {
-#      path = /var/run/dovecot/auth-master
-#    }
-#  }
-#}
-
-##
-## Dictionary server settings
-##
-
-# Dictionary can be used by some plugins to store key=value lists.
-# Currently this is only used by dict quota backend. The dictionary can be
-# used either directly or though a dictionary server. The following dict block
-# maps dictionary names to URIs when the server is used. These can then be
-# referenced using URIs in format "proxy:<name>".
-
-dict {
-  #quota = mysql:/etc/dovecot-dict-quota.conf 
-}
-
-##
-## Plugin settings
-##
-
-plugin {
-  # Here you can give some extra environment variables to mail processes.
-  # This is mostly meant for passing parameters to plugins. %variable
-  # expansion is done for all values.
-
-  # Quota plugin. Multiple backends are supported:
-  #   dirsize: Find and sum all the files found from mail directory.
-  #            Extremely SLOW with Maildir. It'll eat your CPU and disk I/O.
-  #   dict: Keep quota stored in dictionary (eg. SQL)
-  #   maildir: Maildir++ quota
-  #   fs: Read-only support for filesystem quota
-  #quota = maildir
-
-  # ACL plugin. vfile backend reads ACLs from "dovecot-acl" file from maildir
-  # directory. You can also optionally give a global ACL directory path where
-  # ACLs are applied to all users' mailboxes. The global ACL directory contains
-  # one file for each mailbox, eg. INBOX or sub.mailbox.
-  #acl = vfile:/etc/dovecot-acls
-
-  # Convert plugin. If set, specifies the source storage path which is
-  # converted to destination storage (mail_location) when the user logs in.
-  # The existing mail directory is renamed to <dir>-converted.
-  #convert_mail = mbox:%h/mail
-  # Skip mailboxes which we can't open successfully instead of aborting.
-  #convert_skip_broken_mailboxes = no
-
-  # Trash plugin. When saving a message would make user go over quota, this
-  # plugin automatically deletes the oldest mails from configured mailboxes
-  # until the message can be saved within quota limits. The configuration file
-  # is a text file where each line is in format: <priority> <mailbox name>
-  # Mails are first deleted in lowest -> highest priority number order
-  #trash = /etc/dovecot-trash.conf
-
-  # Lazy expunge plugin. Currently works only with maildirs. When a user
-  # expunges mails, the mails are moved to a mailbox in another namespace
-  # (1st). When a mailbox is deleted, the mailbox is moved to another namespace
-  # (2nd) as well. Also if the deleted mailbox had any expunged messages,
-  # they're moved to a 3rd namespace. The mails won't be counted in quota,
-  # and they're not deleted automatically (use a cronjob or something).
-  #lazy_expunge = .EXPUNGED/ .DELETED/ .DELETED/.EXPUNGED/
-}