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imapd.conf(4)							imapd.conf(4)



NAME

  imapd.conf - IMAP configuration file

SYNOPSIS

  /etc/imapd.conf

DESCRIPTION

  The /etc/imapd.conf file is the configuration	file for the IMAP server.  It
  defines local	parameters for IMAP.

  Each line of the /etc/imapd.conf file	has the	form option: value where
  option is the	name of	the configuration option being set and value is	the
  value	that the configuration option is being set to.

  Blank	lines and lines	beginning with ``#'' are ignored.

  For Boolean options, the values ``yes'', ``on'', ``t'', and ``1'' turn the
  option on, the values	``no'',	``off'', ``f'',	and ``0'' turn the option
  off.

Field Descriptions

  The following	sections detail	options	that can be placed in the
  /etc/imapd.conf file,	and show each option's default value.  Some options
  have no default value, these are listed with ``<no default>''.  Some
  options default to the empty string, these are listed	with ``<none>''.

  configdirectory: <no default>
	    The	pathname of the	IMAP configuration directory.  This field is
	    required.

  defaultpartition: default
	    The	partition name used by default for new mailboxes.

  partition-name: <no default>
	    The	pathname of the	partition name.	 At least one field, for the
	    partition named in the defaultpartition option, is required.  For
	    example, if	the value of the defaultpartition option is default,
	    then the partition-default field is	required.

  umask: 077
	    The	umask value used by various IMAP programs.

  allowanonymouslogin: no
	    Permit logins by the user "anonymous" using	any password.  Also
	    allows use of the SASL ANONYMOUS mechanism.

  quotawarn: 90
	    The	percent	of quota utilization over which	the server generates
	    warnings.

  timeout: 30
	    The	length of the IMAP server's inactivity autologout timer, in
	    minutes.  The minimum value	is 30, the default.

  admins: <none>
	    The	list of	userids	with administrative rights.  Separate each
	    userid with	a space.

	    Any	account	that receives mail via the IMAP	server should not be
	    included in	the list as an administrator account.  This could
	    cause problems.  For instance, this	type of	administrator would
	    be able to create top-level	mailboxes that are visible to users,
	    but	not writable by	users.

  defaultacl: anyone lrs
	    The	Access Control List (ACL) placed on a newly-created (non-
	    user) mailbox that does not	have a parent mailbox.

  autocreatequota: 0
	    If nonzero,	normal users may create	their own IMAP accounts	by
	    creating the mailbox INBOX.	 The user's quota is set to the	value
	    if it is positive, otherwise the user has unlimited	quota.

  logtimestamps: no
	    Include notations in the protocol telemetry	logs indicating	the
	    number of seconds since the	last command or	response.

  reject8bit: no
	    If enabled,	the deliver command rejects messages with 8-bit	char-
	    acters in their headers.  Otherwise, 8-bit characters are changed
	    to X.

  plaintextloginpause: 0
	    Number of seconds to pause after a successful plain	text login.
	    For	systems	that support strong authentication, this permits
	    users to perceive the cost of using	plain text passwords.  (This
	    does not affect the	use of PLAIN in	SASL authentications.)

  srvtab: /etc/srvtab
	    The	pathname of the	srvtab file that contains the server's
	    private key.  This option is passed	to the SASL library and	over-
	    rides its default setting.

  loginrealms: <none>
	    The	list of	remote realms whose users may log in using cross-
	    realm authentications.  Separate each realm	name by	a space.  (A
	    cross-realm	identity is considered any identity returned by	SASL
	    with an "@"	in it.)

  loginuseacl: no
	    If enabled,	any authentication identity that has rights on a
	    user's INBOX may log in as that user.

  hashimapspool: false
	    If enabled,	the user mailbox directories in	the
	    /var/spool/imap/user directory are sorted into subdirectories a
	    through z, just as the files in the	user and quota configuration
	    directories.  This is recommended if the data partition has	a
	    highly populated mailbox tree.

  sasl_pwcheck_method: tru64
	    The	mechanism used by the server to	verify plain text passwords.
	    In Tru64 UNIX, this	should be set to tru64.	 It is needed for
	    authentication in a	C2 environment and for proper mail password
	    usage.  Other possible values also include passwd and shadow.

  sasl_auto_transition:	no
	    If enabled,	the SASL library automatically creates authentication
	    secrets when given a plain text password.

  sasl_option:
	    Any	other SASL option can be set by	preceding it with sasl_.

RELATED	INFORMATION

  Commands: cyradm(1), deliver(8), imapd(8), imapquota(8), reconstruct(8)

  Network Administration: Services