imapd.conf(4)imapd.conf(4)NAMEimapd.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>''. The pathname of the IMAP configuration directory. This
field is required. The partition name used by default for new mail‐
boxes. 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. The umask value used by vari‐
ous IMAP programs. Permit logins by the user "anonymous" using any
password. Also allows use of the SASL ANONYMOUS mechanism. The per‐
cent of quota utilization over which the server generates warnings.
The length of the IMAP server's inactivity autologout timer, in min‐
utes. The minimum value is 30, the default. 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. The Access Control List (ACL) placed
on a newly-created (non-user) mailbox that does not have a par‐
ent mailbox. 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. Include notations in the protocol telemetry logs indi‐
cating the number of seconds since the last command or response.
If enabled, the deliver command rejects messages with 8-bit
characters in their headers. Otherwise, 8-bit characters are
changed to X. Number of seconds to pause after a successful
plain text login. For systems that support strong authentica‐
tion, this permits users to perceive the cost of using plain
text passwords. (This does not affect the use of PLAIN in SASL
authentications.) The pathname of the srvtab file that contains
the server's private key. This option is passed to the SASL
library and overrides its default setting. 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.) If
enabled, any authentication identity that has rights on a user's
INBOX may log in as that user. 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. The mecha‐
nism 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.
If enabled, the SASL library automatically creates authentica‐
tion secrets when given a plain text password. 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 delim off
imapd.conf(4)
