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Diffstat (limited to 'server/setup/05-service-settings')
12 files changed, 1186 insertions, 0 deletions
diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/10-auth.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/10-auth.conf new file mode 100644 index 0000000..da97fa9 --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/10-auth.conf @@ -0,0 +1,127 @@ +## +## Authentication processes +## + +# 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 + +# Authentication cache size (e.g. 10M). 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 = 10M +# Time to live for cached data. After TTL expires 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 = 1 hour +# TTL for negative hits (user not found, password mismatch). +# 0 disables caching them completely. +auth_cache_negative_ttl = 1 hour + +# 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 = %Lu + +# 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 + +# 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(). Use "$ALL" (with quotes) to allow all keytab +# entries. +#auth_gssapi_hostname = + +# Kerberos keytab to use for the GSSAPI mechanism. Will use the system +# default (usually /etc/krb5.keytab) if not specified. You may need to change +# the auth service to run as root to be able to read this file. +#auth_krb5_keytab = + +# Do NTLM and GSS-SPNEGO authentication using Samba's winbind daemon and +# ntlm_auth helper. <doc/wiki/Authentication/Mechanisms/Winbind.txt> +#auth_use_winbind = no + +# Path for Samba's ntlm_auth helper binary. +#auth_winbind_helper_path = /usr/bin/ntlm_auth + +# Time to delay before replying to failed authentications. +#auth_failure_delay = 2 secs + +# Require a valid SSL client certificate or the authentication fails. +#auth_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. +#auth_ssl_username_from_cert = no + +# Space separated list of wanted authentication mechanisms: +# plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi otp skey +# gss-spnego +# NOTE: See also disable_plaintext_auth setting. +auth_mechanisms = plain + +## +## Password and user databases +## + +# +# 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> +# +# User database specifies where mails are located and what user/group IDs +# own them. For single-UID configuration use "static" userdb. +# +# <doc/wiki/UserDatabase.txt> + +#!include auth-deny.conf.ext +#!include auth-master.conf.ext + +!include auth-system.conf.ext +#!include auth-sql.conf.ext +#!include auth-ldap.conf.ext +#!include auth-passwdfile.conf.ext +#!include auth-checkpassword.conf.ext +#!include auth-vpopmail.conf.ext +#!include auth-static.conf.ext diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/10-logging.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/10-logging.conf new file mode 100644 index 0000000..0e58552 --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/10-logging.conf @@ -0,0 +1,84 @@ +## +## Log destination. +## + +# Log file to use for error messages. "syslog" logs to syslog, +# /dev/stderr logs to stderr. +#log_path = syslog +log_path = /var/log/dovecot.log + +# Log file to use for informational messages. Defaults to log_path. +#info_log_path = +# Log file to use for debug messages. Defaults to info_log_path. +#debug_log_path = + +# 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 + +## +## Logging verbosity and debugging. +## + +# Log unsuccessful authentication attempts and the reasons why they failed. +auth_verbose = yes + +# In case of password mismatches, log the attempted password. Valid values are +# no, plain and sha1. sha1 can be useful for detecting brute force password +# attempts vs. user simply trying the same password over and over again. +#auth_verbose_passwords = 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. Enabling this also enables auth_debug. +#auth_debug_passwords = no + +# Enable mail process debugging. This can help you figure out why Dovecot +# isn't finding your mails. +#mail_debug = no + +# Show protocol level SSL errors. +#verbose_ssl = no + +# mail_log plugin provides more event logging for mail processes. +plugin { + # Events to log. Also available: flag_change append + #mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename + # Available fields: uid, box, msgid, from, subject, size, vsize, flags + # size and vsize are available only for expunge and copy events. + #mail_log_fields = uid box msgid size +} + +## +## Log formatting. +## + +# Prefix for each line written to log file. % codes are in strftime(3) +# format. +#log_timestamp = "%b %d %H:%M:%S " + +# 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 mpid=%e %c + +# Login log format. %$ contains login_log_format_elements string, %s contains +# the data we want to log. +#login_log_format = %$: %s + +# Log prefix for mail processes. See doc/wiki/Variables.txt for list of +# possible variables you can use. +#mail_log_prefix = "%s(%u): " + +# Format to use for logging mail deliveries. You can use variables: +# %$ - Delivery status message (e.g. "saved to INBOX") +# %m - Message-ID +# %s - Subject +# %f - From address +# %p - Physical size +# %w - Virtual size +#deliver_log_format = msgid=%m: %$ diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/10-mail.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/10-mail.conf new file mode 100644 index 0000000..ace2d3b --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/10-mail.conf @@ -0,0 +1,378 @@ +## +## Mailbox locations and namespaces +## + +# Location for users' mailboxes. The default is empty, which means that Dovecot +# tries to find the mailboxes automatically. This won't work if the user +# doesn't yet have any mail, 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 doc/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 = mbox:~/mail:INBOX=/var/mail/%u +# mail_location = +# mail_location = mbox:~/mail:INBOX=/var/mail/%u +mail_location = mdbox:~/mdbox + +# If you need to set multiple mailbox locations or want to change default +# namespace settings, you can do it by defining namespace sections. +# +# You can have private, shared and public namespaces. Private namespaces +# are for user's personal mails. Shared namespaces are for accessing other +# users' mailboxes that have been shared. Public namespaces are for shared +# mailboxes that are managed by sysadmin. If you create any shared or public +# namespaces you'll typically want to enable ACL plugin also, otherwise all +# users can access all the shared mailboxes, assuming they have permissions +# on filesystem level to do so. +namespace inbox { + # Namespace type: private, shared or public + type = 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. You'll most likely also want to set list=no. This is mostly + # useful when converting from another server with different namespaces which + # you want to deprecate but still keep working. For example you can create + # hidden namespaces with prefixes "~/mail/", "~%u/mail/" and "mail/". + hidden = no + + # Show the mailboxes under this namespace with LIST command. This makes the + # namespace visible for clients that don't support NAMESPACE extension. + # "children" value lists child mailboxes, but hides the namespace prefix. + list = yes + + # Namespace handles its own subscriptions. If set to "no", the parent + # namespace handles them (empty prefix should always have this as "yes") + subscriptions = yes +} + +namespace local { + type = private + separator = / + prefix = Maildir/ + location = maildir:~/Maildir + inbox = no + hidden = no + list = yes + subscriptions = no +} + +# Example shared namespace configuration +namespace { + type = shared + separator = / + + # Mailboxes are visible under "shared/user@domain/" + # %%n, %%d and %%u are expanded to the destination user. + prefix = shared/%%u/ + + # Mail location for other users' mailboxes. Note that %variables and ~/ + # expands to the logged in user's data. %%n, %%d, %%u and %%h expand to the + # destination user's data. + #location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u + location = mdbox:%%h/mdbox/ + + # Use the default namespace for saving subscriptions. + subscriptions = no + + # List the shared/ namespace only if there are visible shared mailboxes. + list = children +} + +# Should shared INBOX be visible as "shared/user" or "shared/user/INBOX"? +#mail_shared_explicit_inbox = yes + +# System user and group used to access mails. If you use multiple, userdb +# can override these by returning uid or gid fields. You can use either numbers +# or names. <doc/wiki/UserIds.txt> +#mail_uid = +#mail_gid = + +# 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 = + +# 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 = mail + +# 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 +## + +# Don't use mmap() at all. This is required if you store indexes to shared +# filesystems (NFS or clustered filesystem). +#mmap_disable = no + +# Rely on O_EXCL to work when creating dotlock files. NFS supports O_EXCL +# since version 3, so this should be safe to use nowadays by default. +#dotlock_use_excl = yes + +# When to use fsync() or fdatasync() calls: +# optimized (default): Whenever necessary to avoid losing important data +# always: Useful with e.g. NFS when write()s are delayed +# never: Never use it (best performance, but crashes can lose data) +#mail_fsync = optimized + +# Mail storage exists in NFS. Set this to yes to make Dovecot flush NFS caches +# whenever needed. If you're using only a single mail server this isn't needed. +#mail_nfs_storage = no +# Mail index files also exist in NFS. Setting this to yes requires +# mmap_disable=yes and fsync_disable=no. +#mail_nfs_index = 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 + +# Directory in which LDA/LMTP temporarily stores incoming mails >128 kB. +#mail_temp_dir = /tmp + +# 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 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, mail_chroot or auth chroot +# settings. If this setting is empty, "/./" in home dirs are ignored. +# 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. If your home directories are prefixed with +# the chroot directory, append "/." to mail_chroot. <doc/wiki/Chrooting.txt> +#mail_chroot = + +# UNIX socket path to master authentication server to find users. +# This is used by imap (for shared users) and lda. +auth_socket_path = /var/run/dovecot/auth-userdb + +# Directory where to look up mail plugins. +#mail_plugin_dir = /usr/lib/dovecot/modules + +# Space separated list of plugins to load for all services. Plugins specific to +# IMAP, LDA, etc. are added to this list in their own .conf files. +mail_plugins = acl + +## +## Mailbox handling optimizations +## + +# 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 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 secs + +# 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 + +# Max number of mails to keep open and prefetch to memory. This only works with +# some mailbox formats and/or operating systems. +#mail_prefetch_count = 0 + +# How often to scan for stale temporary files and delete them (0 = never). +# These should exist only after Dovecot dies in the middle of saving mails. +#mail_temp_scan_interval = 1w + +## +## 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 = yes + +# Assume Dovecot is the only MUA accessing Maildir: Scan cur/ directory only +# when its mtime changes unexpectedly or when we can't find the mail otherwise. +#maildir_very_dirty_syncs = no + +# If enabled, Dovecot doesn't use the S=<size> in the Maildir filenames for +# getting the mail's physical size, except when recalculating Maildir++ quota. +# This can be useful in systems where a lot of the Maildir filenames have a +# broken size. The performance hit for enabling this is very small. +#maildir_broken_filename_sizes = 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. +# dotlock_try: Same as dotlock, but if it fails because of permissions or +# because there isn't enough disk space, just skip it. +# 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 to wait for lock (all of them) before aborting. +#mbox_lock_timeout = 5 mins + +# If dotlock exists but the mailbox isn't modified in any way, override the +# lock file after this much time. +#mbox_dotlock_change_timeout = 2 mins + +# 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 (e.g. 100k), don't write index files. +# If an index file already exists it's still read, just not updated. +#mbox_min_index_size = 0 + +# Mail header selection algorithm to use for MD5 POP3 UIDLs when +# pop3_uidl_format=%m. For backwards compatibility we use apop3d inspired +# algorithm, but it fails if the first Received: header isn't unique in all +# mails. An alternative algorithm is "all" that selects all headers. +#mbox_md5 = apop3d + +## +## mdbox-specific settings +## + +# Maximum dbox file size until it's rotated. +#mdbox_rotate_size = 2M + +# Maximum dbox file age until it's rotated. Typically in days. Day begins +# from midnight, so 1d = today, 2d = yesterday, etc. 0 = check disabled. +#mdbox_rotate_interval = 0 + +# When creating new mdbox files, immediately preallocate their size to +# mdbox_rotate_size. This setting currently works only in Linux with some +# filesystems (ext4, xfs). +#mdbox_preallocate_space = no + +## +## Mail attachments +## + +# sdbox and mdbox support saving mail attachments to external files, which +# also allows single instance storage for them. Other backends don't support +# this for now. + +# WARNING: This feature hasn't been tested much yet. Use at your own risk. + +# Directory root where to store mail attachments. Disabled, if empty. +#mail_attachment_dir = + +# Attachments smaller than this aren't saved externally. It's also possible to +# write a plugin to disable saving specific attachments externally. +#mail_attachment_min_size = 128k + +# Filesystem backend to use for saving attachments: +# posix : No SiS done by Dovecot (but this might help FS's own deduplication) +# sis posix : SiS with immediate byte-by-byte comparison during saving +# sis-queue posix : SiS with delayed comparison and deduplication +#mail_attachment_fs = sis posix + +# Hash format to use in attachment filenames. You can add any text and +# variables: %{md4}, %{md5}, %{sha1}, %{sha256}, %{sha512}, %{size}. +# Variables can be truncated, e.g. %{sha256:80} returns only first 80 bits +#mail_attachment_hash = %{sha1} diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/10-master.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/10-master.conf new file mode 100644 index 0000000..9a5b5a3 --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/10-master.conf @@ -0,0 +1,122 @@ +#default_process_limit = 100 +#default_client_limit = 1000 + +# Default VSZ (virtual memory size) limit for service processes. This is mainly +# intended to catch and kill processes that leak memory before they eat up +# everything. +#default_vsz_limit = 256M + +# Login user is internally used by login processes. This is the most untrusted +# user in Dovecot system. It shouldn't have access to anything at all. +#default_login_user = dovenull + +# Internal user is used by unprivileged processes. It should be separate from +# login user, so that login processes can't disturb other processes. +#default_internal_user = dovecot + +service imap-login { + inet_listener imap { + #port = 143 + port = 0 + } + inet_listener imaps { + port = 993 + ssl = yes + } + + # Number of connections to handle before starting a new process. Typically + # the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0 + # is faster. <doc/wiki/LoginProcess.txt> + #service_count = 1 + + # Number of processes to always keep waiting for more connections. + #process_min_avail = 0 + + # If you set service_count=0, you probably need to grow this. + #vsz_limit = $default_vsz_limit +} + +service pop3-login { + inet_listener pop3 { + #port = 110 + port = 0 + } + inet_listener pop3s { + port = 995 + ssl = yes + } +} + +service lmtp { + unix_listener lmtp { + #mode = 0666 + } + + # Create inet listener only if you can't use the above UNIX socket + #inet_listener lmtp { + # Avoid making LMTP visible for the entire internet + #address = + #port = + #} +} + +service imap { + # Most of the memory goes to mmap()ing files. You may need to increase this + # limit if you have huge mailboxes. + #vsz_limit = $default_vsz_limit + vsz_limit = 2048M + + # Max. number of IMAP processes (connections) + #process_limit = 1024 +} + +service pop3 { + # Max. number of POP3 processes (connections) + #process_limit = 1024 +} + +service auth { + # auth_socket_path points to this userdb socket by default. It's typically + # used by dovecot-lda, doveadm, possibly imap process, etc. Users that have + # full permissions to this socket are able to get a list of all usernames and + # get the results of everyone's userdb lookups. + # + # The default 0666 mode allows anyone to connect to the socket, but the + # userdb lookups will succeed only if the userdb returns an "uid" field that + # matches the caller process's UID. Also if caller's uid or gid matches the + # socket's uid or gid the lookup succeeds. Anything else causes a failure. + # + # To give the caller full permissions to lookup all users, set the mode to + # something else than 0666 and Dovecot lets the kernel enforce the + # permissions (e.g. 0777 allows everyone full permissions). + unix_listener auth-userdb { + #mode = 0666 + #user = + #group = + } + + # Postfix smtp-auth + #unix_listener /var/spool/postfix/private/auth { + # mode = 0666 + #} + + # Auth process is run as this user. + #user = $default_internal_user +} + +service auth-worker { + # Auth worker process is run as root by default, so that it can access + # /etc/shadow. If this isn't necessary, the user should be changed to + # $default_internal_user. + #user = root +} + +service dict { + # If dict proxy is used, mail processes should have access to its socket. + # For example: mode=0660, group=vmail and global mail_access_groups=vmail + unix_listener dict { + #mode = 0600 + #user = + #group = + } +} diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/10-ssl.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/10-ssl.conf new file mode 100644 index 0000000..dd3183c --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/10-ssl.conf @@ -0,0 +1,54 @@ +## +## SSL settings +## + +# SSL/TLS support: yes, no, required. <doc/wiki/SSL.txt> +#ssl = yes +ssl = required + +# 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. Included doc/mkcert.sh can be used to easily generate self-signed +# certificate, just make sure to update the domains in dovecot-openssl.cnf +#ssl_cert = </etc/dovecot/dovecot.pem +#ssl_key = </etc/dovecot/private/dovecot.pem +ssl_cert = </etc/ssl/local/jogamp2013-hostcert.pem +ssl_key = </etc/ssl/local/jogamp2013-hostkey.mail.pem + +# If key file is password protected, give the password here. Alternatively +# give it when starting dovecot with -p parameter. Since this file is often +# world-readable, you may want to place this setting instead to a different +# root owned 0600 file by using ssl_key_password = <path. +#ssl_key_password = + +# PEM encoded trusted certificate authority. Set this only if you intend to use +# ssl_verify_client_cert=yes. The file should contain the CA certificate(s) +# followed by the matching CRL(s). (e.g. ssl_ca = </etc/ssl/certs/ca.pem) +#ssl_ca = +ssl_ca = </etc/ssl/local/thawte-SSL123_CA_Bundle.pem + +# Require that CRL check succeeds for client certificates. +#ssl_require_crl = yes + +# Request client to send a certificate. If you also want to require it, set +# auth_ssl_require_client_cert=yes in auth section. +#ssl_verify_client_cert = no + +# Which field from certificate to use for username. commonName and +# x500UniqueIdentifier are the usual choices. You'll also need to set +# auth_ssl_username_from_cert=yes. +#ssl_cert_username_field = commonName + +# 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 protocols to use +#ssl_protocols = !SSLv2 + +# SSL ciphers to use +#ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL + +# SSL crypto device to use, for valid values run "openssl engine" +#ssl_crypto_device = diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/15-lda.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/15-lda.conf new file mode 100644 index 0000000..29aea2d --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/15-lda.conf @@ -0,0 +1,48 @@ +## +## LDA specific settings (also used by LMTP) +## + +# Address to use when sending rejection mails. +# Default is postmaster@<your domain>. +#postmaster_address = + +# Hostname to use in various parts of sent mails, eg. in Message-Id. +# Default is the system's real hostname. +#hostname = + +# If user is over quota, return with temporary failure instead of +# bouncing the mail. +#quota_full_tempfail = no + +# Binary to use for sending mails. +#sendmail_path = /usr/sbin/sendmail + +# If non-empty, send mails via this SMTP host[:port] instead of sendmail. +#submission_host = + +# Subject: header to use for rejection mails. You can use the same variables +# as for rejection_reason below. +#rejection_subject = Rejected: %s + +# Human readable error message for rejection mails. You can use variables: +# %n = CRLF, %r = reason, %s = original subject, %t = recipient +#rejection_reason = Your message to <%t> was automatically rejected:%n%r + +# Delimiter character between local-part and detail in email address. +#recipient_delimiter = + + +# Header where the original recipient address (SMTP's RCPT TO: address) is taken +# from if not available elsewhere. With dovecot-lda -a parameter overrides this. +# A commonly used header for this is X-Original-To. +#lda_original_recipient_header = + +# Should saving a mail to a nonexistent mailbox automatically create it? +lda_mailbox_autocreate = yes + +# Should automatically created mailboxes be also automatically subscribed? +lda_mailbox_autosubscribe = yes + +protocol lda { + # Space separated list of plugins to load (default is global mail_plugins). + mail_plugins = $mail_plugins sieve +} diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/20-imap.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/20-imap.conf new file mode 100644 index 0000000..4a2283a --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/20-imap.conf @@ -0,0 +1,59 @@ +## +## IMAP specific settings +## + +protocol imap { + # Maximum IMAP command line length. 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 = 64k + + # Maximum number of IMAP connections allowed for a user from each IP address. + # NOTE: The username is compared case-sensitively. + #mail_max_userip_connections = 10 + + # Space separated list of plugins to load (default is global mail_plugins). + #mail_plugins = $mail_plugins + mail_plugins = $mail_plugins imap_acl + + # IMAP logout format string: + # %i - total number of bytes read from client + # %o - total number of bytes sent to client + #imap_logout_format = bytes=%i/%o + + # Override the IMAP CAPABILITY response. If the value begins with '+', + # add the given capabilities on top of the defaults (e.g. +XFOO XBAR). + #imap_capability = + + # How long to wait between "OK Still here" notifications when client is + # IDLEing. + #imap_idle_notify_interval = 2 mins + + # ID field names and values to send to clients. Using * as the value makes + # Dovecot use the default value. The following fields have default values + # currently: name, version, os, os-version, support-url, support-email. + #imap_id_send = + + # ID fields sent by client to log. * means everything. + #imap_id_log = + + # 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". + # tb-extra-mailbox-sep: + # Thunderbird gets somehow confused with LAYOUT=fs (mbox and dbox) and + # adds extra '/' suffixes to mailbox names. This option causes Dovecot to + # ignore the extra '/' instead of treating it as invalid mailbox name. + # tb-lsub-flags: + # Show \Noselect flags for LSUB replies with LAYOUT=fs (e.g. mbox). + # This makes Thunderbird realize they aren't selectable and show them + # greyed out, instead of only later giving "not selectable" popup error. + # + # The list is space-separated. + #imap_client_workarounds = +} diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/20-lmtp.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/20-lmtp.conf new file mode 100644 index 0000000..84d8c2e --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/20-lmtp.conf @@ -0,0 +1,16 @@ +## +## LMTP specific settings +## + +# Support proxying to other LMTP/SMTP servers by performing passdb lookups. +#lmtp_proxy = no + +# When recipient address includes the detail (e.g. user+detail), try to save +# the mail to the detail mailbox. See also recipient_delimiter and +# lda_mailbox_autocreate settings. +#lmtp_save_to_detail_mailbox = no + +protocol lmtp { + # Space separated list of plugins to load (default is global mail_plugins). + mail_plugins = $mail_plugins sieve +} diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/20-managesieve.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/20-managesieve.conf new file mode 100644 index 0000000..a73a417 --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/20-managesieve.conf @@ -0,0 +1,73 @@ +## +## ManageSieve specific settings +## + +# Service definitions + +service managesieve-login { + #inet_listener sieve { + # port = 4190 + #} + + #inet_listener sieve_deprecated { + # port = 2000 + #} + + # Number of connections to handle before starting a new process. Typically + # the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0 + # is faster. <doc/wiki/LoginProcess.txt> + #service_count = 1 + + # Number of processes to always keep waiting for more connections. + #process_min_avail = 0 + + # If you set service_count=0, you probably need to grow this. + #vsz_limit = 64M +} + +service managesieve { + # Max. number of ManageSieve processes (connections) + #process_count = 1024 +} + +# Service configuration + +protocol sieve { + # Maximum ManageSieve command line length in bytes. ManageSieve usually does + # not involve overly long command lines, so this setting will not normally + # need adjustment + #managesieve_max_line_length = 65536 + + # Maximum number of ManageSieve connections allowed for a user from each IP + # address. + # NOTE: The username is compared case-sensitively. + #mail_max_userip_connections = 10 + + # Space separated list of plugins to load (none known to be useful so far). + # Do NOT try to load IMAP plugins here. + #mail_plugins = + + # MANAGESIEVE logout format string: + # %i - total number of bytes read from client + # %o - total number of bytes sent to client + #managesieve_logout_format = bytes=%i/%o + + # To fool ManageSieve clients that are focused on CMU's timesieved you can + # specify the IMPLEMENTATION capability that Dovecot reports to clients. + # For example: 'Cyrus timsieved v2.2.13' + #managesieve_implementation_string = Dovecot Pigeonhole + + # Explicitly specify the SIEVE and NOTIFY capability reported by the server + # before login. If left unassigned these will be reported dynamically + # according to what the Sieve interpreter supports by default (after login + # this may differ depending on the user). + #managesieve_sieve_capability = + #managesieve_notify_capability = + + # The maximum number of compile errors that are returned to the client upon + # script upload or script verification. + #managesieve_max_compile_errors = 5 + + # Refer to 90-sieve.conf for script quota configuration and configuration of + # Sieve execution limits. +} diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/90-acl.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/90-acl.conf new file mode 100644 index 0000000..802241d --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/90-acl.conf @@ -0,0 +1,19 @@ +## +## Mailbox access control lists. +## + +# vfile backend reads ACLs from "dovecot-acl" file from mail 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. cache_secs parameter +# specifies how many seconds to wait between stat()ing dovecot-acl file +# to see if it changed. +plugin { + acl = vfile:/etc/dovecot/global-acls:cache_secs=300 +} + +# To let users LIST mailboxes shared by other users, Dovecot needs a +# shared mailbox dictionary. For example: +plugin { + #acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes +} diff --git a/server/setup/05-service-settings/etc/dovecot/conf.d/90-sieve.conf b/server/setup/05-service-settings/etc/dovecot/conf.d/90-sieve.conf new file mode 100644 index 0000000..5756eae --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/conf.d/90-sieve.conf @@ -0,0 +1,107 @@ +## +## Settings for the Sieve interpreter +## + +# Do not forget to enable the Sieve plugin in 15-lda.conf and 20-lmtp.conf +# by adding it to the respective mail_plugins= settings. + +plugin { + # The path to the user's main active script. If ManageSieve is used, this the + # location of the symbolic link controlled by ManageSieve. + sieve = ~/.dovecot.sieve + + # The default Sieve script when the user has none. This is a path to a global + # sieve script file, which gets executed ONLY if user's private Sieve script + # doesn't exist. Be sure to pre-compile this script manually using the sievec + # command line tool. + # --> See sieve_before fore executing scripts before the user's personal + # script. + #sieve_default = /var/lib/dovecot/sieve/default.sieve + sieve_default = /var/lib/dovecot/sieve/global/default.sieve + + # Directory for :personal include scripts for the include extension. This + # is also where the ManageSieve service stores the user's scripts. + sieve_dir = ~/sieve + + # Directory for :global include scripts for the include extension. + #sieve_global_dir = + sieve_global_dir = /var/lib/dovecot/sieve/global/ + + # Path to a script file or a directory containing script files that need to be + # executed before the user's script. If the path points to a directory, all + # the Sieve scripts contained therein (with the proper .sieve extension) are + # executed. The order of execution within a directory is determined by the + # file names, using a normal 8bit per-character comparison. Multiple script + # file or directory paths can be specified by appending an increasing number. + #sieve_before = + #sieve_before2 = + #sieve_before3 = (etc...) + sieve_before = /var/lib/dovecot/sieve/prologue.sieve + + # Identical to sieve_before, only the specified scripts are executed after the + # user's script (only when keep is still in effect!). Multiple script file or + # directory paths can be specified by appending an increasing number. + #sieve_after = + #sieve_after2 = + #sieve_after2 = (etc...) + + # Which Sieve language extensions are available to users. By default, all + # supported extensions are available, except for deprecated extensions or + # those that are still under development. Some system administrators may want + # to disable certain Sieve extensions or enable those that are not available + # by default. This setting can use '+' and '-' to specify differences relative + # to the default. For example `sieve_extensions = +imapflags' will enable the + # deprecated imapflags extension in addition to all extensions were already + # enabled by default. + #sieve_extensions = +notify +imapflags + + # Which Sieve language extensions are ONLY available in global scripts. This + # can be used to restrict the use of certain Sieve extensions to administrator + # control, for instance when these extensions can cause security concerns. + # This setting has higher precedence than the `sieve_extensions' setting + # (above), meaning that the extensions enabled with this setting are never + # available to the user's personal script no matter what is specified for the + # `sieve_extensions' setting. The syntax of this setting is similar to the + # `sieve_extensions' setting, with the difference that extensions are + # enabled or disabled for exclusive use in global scripts. Currently, no + # extensions are marked as such by default. + #sieve_global_extensions = + + # The Pigeonhole Sieve interpreter can have plugins of its own. Using this + # setting, the used plugins can be specified. Check the Dovecot wiki + # (wiki2.dovecot.org) or the pigeonhole website + # (http://pigeonhole.dovecot.org) for available plugins. + #sieve_plugins = + + # The separator that is expected between the :user and :detail + # address parts introduced by the subaddress extension. This may + # also be a sequence of characters (e.g. '--'). The current + # implementation looks for the separator from the left of the + # localpart and uses the first one encountered. The :user part is + # left of the separator and the :detail part is right. This setting + # is also used by Dovecot's LMTP service. + #recipient_delimiter = + + + # The maximum size of a Sieve script. The compiler will refuse to compile any + # script larger than this limit. If set to 0, no limit on the script size is + # enforced. + #sieve_max_script_size = 1M + + # The maximum number of actions that can be performed during a single script + # execution. If set to 0, no limit on the total number of actions is enforced. + #sieve_max_actions = 32 + + # The maximum number of redirect actions that can be performed during a single + # script execution. If set to 0, no redirect actions are allowed. + #sieve_max_redirects = 4 + + # The maximum number of personal Sieve scripts a single user can have. If set + # to 0, no limit on the number of scripts is enforced. + # (Currently only relevant for ManageSieve) + #sieve_quota_max_scripts = 0 + + # The maximum amount of disk storage a single user's scripts may occupy. If + # set to 0, no limit on the used amount of disk storage is enforced. + # (Currently only relevant for ManageSieve) + #sieve_quota_max_storage = 0 +} diff --git a/server/setup/05-service-settings/etc/dovecot/dovecot.conf b/server/setup/05-service-settings/etc/dovecot/dovecot.conf new file mode 100644 index 0000000..6e8845a --- /dev/null +++ b/server/setup/05-service-settings/etc/dovecot/dovecot.conf @@ -0,0 +1,99 @@ +## Dovecot configuration file + +# If you're in a hurry, see http://wiki2.dovecot.org/QuickConfiguration + +# "doveconf -n" command gives a clean output of the changed settings. Use it +# instead of copy&pasting files 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 +# those. These are exceptions to this though: No sections (e.g. namespace {}) +# or plugin settings are added by default, they're listed only as examples. +# Paths are also just examples with the real defaults being based on configure +# options. The paths listed here are for configure --prefix=/usr +# --sysconfdir=/etc --localstatedir=/var + +# Enable installed protocols +!include_try /usr/share/dovecot/protocols.d/*.protocol +# protocols = imaps pop3s sieve lmtp + +# A comma separated list of IPs or hosts where to listen in for connections. +# "*" listens in all IPv4 interfaces, "::" listens in all IPv6 interfaces. +# If you want to specify non-default ports or anything more complex, +# edit conf.d/master.conf. +#listen = *, :: + +# Base directory where to store runtime data. +#base_dir = /var/run/dovecot/ + +# Name of this instance. In multi-instance setup doveadm and other commands +# can use -i <instance_name> to select which instance is used (an alternative +# to -c <config_path>). The instance name is also added to Dovecot processes +# in ps output. +#instance_name = dovecot + +# Greeting message for clients. +login_greeting = jogamp.org is ready. + +# Space separated list of trusted network ranges. Connections from these +# IPs are allowed to override their IP addresses and ports (for logging and +# for authentication checks). disable_plaintext_auth is also ignored for +# these networks. Typically you'd specify your IMAP proxy servers here. +#login_trusted_networks = + +# Sepace separated list of login access check sockets (e.g. tcpwrap) +#login_access_sockets = + +# With proxy_maybe=yes if proxy destination matches any of these IPs, don't do +# proxying. This isn't necessary normally, but may be useful if the destination +# IP is e.g. a load balancer's IP. +#auth_proxy_self = + +# 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 + +# Should all 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 e.g. because of a security fix). +#shutdown_clients = yes + +# If non-zero, run mail commands via this many connections to doveadm server, +# instead of running them directly in the same process. +#doveadm_worker_count = 0 +# UNIX socket or host:port used for connecting to doveadm server +#doveadm_socket_path = doveadm-server + +# Space separated list of environment variables that are preserved on Dovecot +# startup and passed down to all of its child processes. You can also give +# key=value pairs to always set specific settings. +#import_environment = TZ + +## +## Dictionary server settings +## + +# Dictionary can be used to store key=value lists. This is used by several +# plugins. The dictionary can be accessed 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/dovecot-dict-sql.conf.ext + #expire = sqlite:/etc/dovecot/dovecot-dict-sql.conf.ext +} + +# Most of the actual configuration gets included below. The filenames are +# first sorted by their ASCII value and parsed in that order. The 00-prefixes +# in filenames are intended to make it easier to understand the ordering. +!include conf.d/*.conf + +# A config file can also tried to be included without giving an error if +# it's not found: +!include_try local.conf |