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- ##VERSION: $Id: imapd.dist.in 159 2011-11-14 02:07:00Z mrsam $
- #
- # imapd created from imapd.dist by sysconftool
- #
- # Do not alter lines that begin with ##, they are used when upgrading
- # this configuration.
- #
- # Copyright 1998 - 2008 Double Precision, Inc. See COPYING for
- # distribution information.
- #
- # This configuration file sets various options for the Courier-IMAP server
- # when used with the couriertcpd server.
- # A lot of the stuff here is documented in the manual page for couriertcpd.
- #
- # NOTE - do not use \ to split long variable contents on multiple lines.
- # This will break the default imapd.rc script, which parses this file.
- #
- ##NAME: ADDRESS:0
- #
- # Address to listen on, can be set to a single IP address.
- #
- # ADDRESS=127.0.0.1
- ADDRESS=0
- ##NAME: PORT:1
- #
- # Port numbers that connections are accepted on. The default is 143,
- # the standard IMAP port.
- #
- # Multiple port numbers can be separated by commas. When multiple port
- # numbers are used it is possible to select a specific IP address for a
- # given port as "ip.port". For example, "127.0.0.1.900,192.68.0.1.900"
- # accepts connections on port 900 on IP addresses 127.0.0.1 and 192.68.0.1
- # The previous ADDRESS setting is a default for ports that do not have
- # a specified IP address.
- PORT=143
- ##NAME: AUTHSERVICE:0
- #
- # It's possible to authenticate using a different 'service' parameter
- # depending on the connection's port. This only works with authentication
- # modules that use the 'service' parameter, such as PAM. Example:
- #
- # AUTHSERVICE143=imap
- # AUTHSERVICE993=imaps
- ##NAME: MAXDAEMONS:0
- #
- # Maximum number of IMAP servers started
- #
- MAXDAEMONS=80
- ##NAME: MAXPERIP:0
- #
- # Maximum number of connections to accept from the same IP address
- MAXPERIP=40
- ##NAME: PIDFILE:0
- #
- # File where couriertcpd will save its process ID
- #
- PIDFILE=/var/run/imapd.pid
- ##NAME: TCPDOPTS:0
- #
- # Miscellaneous couriertcpd options that shouldn't be changed.
- #
- TCPDOPTS="-nodnslookup -noidentlookup"
- ##NAME: LOGGEROPTS:0
- #
- # courierlogger(1) options.
- #
- LOGGEROPTS="-name=imapd"
- ##NAME: DEFDOMAIN:0
- #
- # Optional default domain. If the username does not contain the
- # first character of DEFDOMAIN, then it is appended to the username.
- # If DEFDOMAIN and DOMAINSEP are both set, then DEFDOMAIN is appended
- # only if the username does not contain any character from DOMAINSEP.
- # You can set different default domains based on the the interface IP
- # address using the -access and -accesslocal options of couriertcpd(1).
- #DEFDOMAIN="@example.com"
- ##NAME: IMAP_CAPABILITY:1
- #
- # IMAP_CAPABILITY specifies what most of the response should be to the
- # CAPABILITY command.
- #
- # If you have properly configured Courier to use CRAM-MD5, CRAM-SHA1, or
- # CRAM-SHA256 authentication (see INSTALL), set IMAP_CAPABILITY as follows:
- #
- # IMAP_CAPABILITY="IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA AUTH=CRAM-MD5 AUTH=CRAM-SHA1 AUTH=CRAM-SHA256 IDLE"
- #
- IMAP_CAPABILITY="IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA AUTH=PLAIN IDLE"
- ##NAME: KEYWORDS_CAPABILITY:0
- #
- # IMAP_KEYWORDS=1 enables custom IMAP keywords. Set this option to 0 to
- # disable custom keywords.
- #
- # IMAP_KEYWORDS=2 also enables custom IMAP keywords, but uses a slower
- # algorithm. Use this setting if keyword-related problems occur when
- # multiple IMAP clients are updating keywords on the same message.
- IMAP_KEYWORDS=1
- ##NAME: ACL_CAPABILITY:0
- #
- # IMAP_ACL=1 enables IMAP ACL extension. Set this option to 0 to
- # disable ACL capabilities announce.
- IMAP_ACL=1
- ##NAME: SMAP1_CAPABILITY:0
- #
- # EXPERIMENTAL
- #
- # To enable the experimental "Simple Mail Access Protocol" extensions,
- # uncomment the following setting.
- #
- # SMAP_CAPABILITY=SMAP1
- ##NAME: IMAP_CAPABILITY_ORIG:2
- #
- # For use by webadmin
- IMAP_CAPABILITY_ORIG="IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA AUTH=CRAM-MD5 AUTH=CRAM-SHA1 AUTH=CRAM-SHA256 IDLE"
- ##NAME: IMAP_PROXY:0
- #
- # Enable proxying. See README.proxy
- IMAP_PROXY=0
- ##NAME: PROXY_HOSTNAME:0
- #
- # Override value from gethostname() when checking if a proxy connection is
- # required.
- #
- # PROXY_HOSTNAME=
- ##NAME: IMAP_PROXY_FOREIGN:0
- #
- # Proxying to non-Courier servers. Re-sends the CAPABILITY command after
- # logging in to the remote server. May not work with all IMAP clients.
- IMAP_PROXY_FOREIGN=0
- ##NAME: IMAP_IDLE_TIMEOUT:0
- #
- # This setting controls how often
- # the server polls for changes to the folder, in IDLE mode (in seconds).
- IMAP_IDLE_TIMEOUT=60
- ##NAME: IMAP_MAILBOX_SANITY_CHECK:0
- #
- # Sanity check -- make sure home directory and maildir's ownership matches
- # the IMAP server's effective uid and gid
- IMAP_MAILBOX_SANITY_CHECK=1
- ##NAME: IMAP_CAPABILITY_TLS:0
- #
- # The following setting will advertise SASL PLAIN authentication after
- # STARTTLS is established. If you want to allow SASL PLAIN authentication
- # with or without TLS then just comment this out, and add AUTH=PLAIN to
- # IMAP_CAPABILITY
- IMAP_CAPABILITY_TLS="$IMAP_CAPABILITY AUTH=PLAIN"
- ##NAME: IMAP_TLS_ORIG:0
- #
- # For use by webadmin
- IMAP_CAPABILITY_TLS_ORIG="$IMAP_CAPABILITY_ORIG AUTH=PLAIN"
- ##NAME: IMAP_DISABLETHREADSORT:0
- #
- # Set IMAP_DISABLETHREADSORT to disable the THREAD and SORT commands -
- # server side sorting and threading.
- #
- # Those capabilities will still be advertised, but the server will reject
- # them. Set this option if you want to disable all the extra load from
- # server-side threading and sorting. Not advertising those capabilities
- # will simply result in the clients reading the entire folder, and sorting
- # it on the client side. That will still put some load on the server.
- # advertising these capabilities, but rejecting the commands, will stop this
- # silliness.
- #
- IMAP_DISABLETHREADSORT=0
- ##NAME: IMAP_CHECK_ALL_FOLDERS:0
- #
- # Set IMAP_CHECK_ALL_FOLDERS to 1 if you want the server to check for new
- # mail in every folder. Not all IMAP clients use the IMAP's new mail
- # indicator, but some do. Normally new mail is checked only in INBOX,
- # because it is a comparatively time consuming operation, and it would be
- # a complete waste of time unless mail filters are used to deliver
- # mail directly to folders.
- #
- # When IMAP clients are used which support new mail indication, and when
- # mail filters are used to sort incoming mail into folders, setting
- # IMAP_CHECK_ALL_FOLDERS to 1 will allow IMAP clients to announce new
- # mail in folders. Note that this will result in slightly more load on the
- # server.
- #
- IMAP_CHECK_ALL_FOLDERS=0
- ##NAME: IMAP_OBSOLETE_CLIENT:0
- #
- # Set IMAP_OBSOLETE_CLIENT if your IMAP client expects \\NoInferiors to mean
- # what \\HasNoChildren really means.
- IMAP_OBSOLETE_CLIENT=0
- ##NAME: IMAP_UMASK:0
- #
- # IMAP_UMASK sets the umask of the server process. The value of IMAP_UMASK is
- # simply passed to the "umask" command. The default value is 022.
- #
- # This feature is mostly useful for shared folders, where the file permissions
- # of the messages may be important.
- IMAP_UMASK=022
- ##NAME: IMAP_ULIMITD:0
- #
- # IMAP_ULIMITD sets the maximum size of the data segment of the server
- # process. The value of IMAP_ULIMITD is simply passed to the "ulimit -d"
- # command (or ulimit -v). The argument to ulimi sets the upper limit on the
- # size of the data segment of the server process, in kilobytes. The default
- # value of 65536 sets a very generous limit of 64 megabytes, which should
- # be more than plenty for anyone.
- #
- # This feature is used as an additional safety check that should stop
- # any potential denial-of-service attacks that exploit any kind of
- # a memory leak to exhaust all the available memory on the server.
- # It is theoretically possible that obscenely huge folders will also
- # result in the server running out of memory when doing server-side
- # sorting (by my calculations you have to have at least 100,000 messages
- # in a single folder, for that to happen).
- IMAP_ULIMITD=65536
- ##NAME: IMAP_USELOCKS:0
- #
- # Setting IMAP_USELOCKS to 1 will use dot-locking to support concurrent
- # multiple access to the same folder. This incurs slight additional
- # overhead. Concurrent multiple access will still work without this setting,
- # however occasionally a minor race condition may result in an IMAP client
- # downloading the same message twice, or a keyword update will fail.
- #
- # IMAP_USELOCKS=1 is strongly recommended when shared folders are used.
- IMAP_USELOCKS=1
- ##NAME: IMAP_SHAREDINDEXFILE:0
- #
- # The index of all accessible folders. Do not change this setting unless
- # you know what you're doing. See README.sharedfolders for additional
- # information.
- #IMAP_SHAREDINDEXFILE=/etc/courier-imap/shared/index
- ##NAME: IMAP_ENHANCEDIDLE:0
- #
- # If Courier was compiled with the File Alteration Monitor, setting
- # IMAP_ENHANCEDIDLE to 1 enables enhanced IDLE mode, where multiple
- # clients may open the same folder concurrently, and receive updates to
- # folder contents in realtime. See the imapd(8) man page for additional
- # information.
- #
- # IMPORTANT: IMAP_USELOCKS *MUST* also be set to 1, and IDLE must be included
- # in the IMAP_CAPABILITY list.
- #
- IMAP_ENHANCEDIDLE=0
- ##NAME: IMAP_TRASHFOLDERNAME:0
- #
- # The name of the magic trash Folder. For MSOE compatibility,
- # you can set IMAP_TRASHFOLDERNAME="Deleted Items".
- #
- # IMPORTANT: If you change this, you must also change IMAP_EMPTYTRASH
- IMAP_TRASHFOLDERNAME=Trash
- ##NAME: IMAP_EMPTYTRASH:0
- #
- # The following setting is optional, and causes messages from the given
- # folder to be automatically deleted after the given number of days.
- # IMAP_EMPTYTRASH is a comma-separated list of folder:days. The default
- # setting, below, purges 7 day old messages from the Trash folder.
- # Another useful setting would be:
- #
- # IMAP_EMPTYTRASH=Trash:7,Sent:30
- #
- # This would also delete messages from the Sent folder (presumably copies
- # of sent mail) after 30 days. This is a global setting that is applied to
- # every mail account, and is probably useful in a controlled, corporate
- # environment.
- #
- # Important: the purging is controlled by CTIME, not MTIME (the file time
- # as shown by ls). It is perfectly ordinary to see stuff in Trash that's
- # a year old. That's the file modification time, MTIME, that's displayed.
- # This is generally when the message was originally delivered to this
- # mailbox. Purging is controlled by a different timestamp, CTIME, which is
- # changed when the file is moved to the Trash folder (and at other times too).
- #
- # You might want to disable this setting in certain situations - it results
- # in a stat() of every file in each folder, at login and logout.
- #
- IMAP_EMPTYTRASH=Trash:7
- ##NAME: IMAP_MOVE_EXPUNGE_TO_TRASH:0
- #
- # Set IMAP_MOVE_EXPUNGE_TO_TRASH to move expunged messages to Trash. This
- # effectively allows an undo of message deletion by fishing the deleted
- # mail from trash. Trash can be manually expunged as usually, and mail
- # will get automatically expunged from Trash according to IMAP_EMPTYTRASH.
- #
- # NOTE: shared folders are still expunged as usual. Shared folders are
- # not affected.
- #
- IMAP_MOVE_EXPUNGE_TO_TRASH=0
- ##NAME: IMAP_LOG_DELETIONS:0
- #
- #
- # Set IMAP_LOG_DELETIONS to log all message deletions to syslog.
- #
- # IMAP_LOG_DELETIONS=1
- ##NAME: IMAPDEBUGFILE:0
- #
- # IMAPDEBUGFILE="imaplog.dat"
- #
- # Generate diagnostic logging of IMAP commands.
- #
- # Set this globally, restart the server. Touch this file in an account's
- # maildir directory, and Courier-IMAP will append all IMAP commands received
- # for new sessions for this account. NOTE: existing IMAP sessions are not
- # affected, only new IMAP logins.
- ##NAME: OUTBOX:0
- #
- # The next set of options deal with the "Outbox" enhancement.
- # Uncomment the following setting to create a special folder, named
- # INBOX.Outbox
- #
- # OUTBOX=.Outbox
- ##NAME: SENDMAIL:0
- #
- # If OUTBOX is defined, mail can be sent via the IMAP connection by copying
- # a message to the INBOX.Outbox folder. For all practical matters,
- # INBOX.Outbox looks and behaves just like any other IMAP folder. If this
- # folder doesn't exist it must be created by the IMAP mail client, just
- # like any other IMAP folder. The kicker: any message copied or moved to
- # this folder is will be E-mailed by the Courier-IMAP server, by running
- # the SENDMAIL program. Therefore, messages copied or moved to this
- # folder must be well-formed RFC-2822 messages, with the recipient list
- # specified in the To:, Cc:, and Bcc: headers. Courier-IMAP relies on
- # SENDMAIL to read the recipient list from these headers (and delete the Bcc:
- # header) by running the command "$SENDMAIL -oi -t -f $SENDER", with the
- # message piped on standard input. $SENDER will be the return address
- # of the message, which is set by the authentication module.
- #
- # DO NOT MODIFY SENDMAIL, below, unless you know what you're doing.
- #
- SENDMAIL=/usr/sbin/sendmail
- ##NAME: HEADERFROM:0
- #
- # For administrative and oversight purposes, the return address, $SENDER
- # will also be saved in the X-IMAP-Sender mail header. This header gets
- # added to the sent E-mail (but it doesn't get saved in the copy of the
- # message that's saved in the folder)
- #
- # WARNING - By enabling OUTBOX above, *every* IMAP mail client will receive
- # the magic OUTBOX treatment. Therefore advance LARTing is in order for
- # _all_ of your lusers, until every one of them is aware of this. Otherwise if
- # OUTBOX is left at its default setting - a folder name that might be used
- # accidentally - some people may be in for a rude surprise. You can redefine
- # the name of the magic folder by changing OUTBOX, above. You should do that
- # and pick a less-obvious name. Perhaps brand it with your organizational
- # name ( OUTBOX=.WidgetsAndSonsOutbox )
- HEADERFROM=X-IMAP-Sender
- ##NAME: OUTBOX_MULTIPLE_SEND:0
- #
- # Remove the following comment to allow a COPY of more than one message to
- # the Outbox, at a time.
- #
- # OUTBOX_MULTIPLE_SEND=1
- ##NAME: IMAPDSTART:0
- #
- # IMAPDSTART is not used directly. Rather, this is a convenient flag to
- # be read by your system startup script in /etc/rc.d, like this:
- #
- # . /etc/courier-imap/imapd
- #
- # case x$IMAPDSTART in
- # x[yY]*)
- # /usr/lib/imapd.rc start
- # ;;
- # esac
- #
- # The default setting is going to be NO, so you'll have to manually flip
- # it to yes.
- IMAPDSTART=YES
- ##NAME: MAILDIRPATH:0
- #
- # MAILDIRPATH - directory name of the maildir directory.
- #
- MAILDIRPATH=Maildir
- MAILDIRPATH=Maildir
- # *** AUTHMODULES added by Parallels Plesk ***
- AUTHMODULES="authpsa"
- POPLOCK_TIME=30
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