Hi All
Can anyone one help me on this issue. The bounce messages are not working
properly. when i send message to a nonexistent email address instead of
sending a bounce back message to the original sender exim creates a mail
directory in the specific domain folder and the mail gets delivered. This
issue has shaked my brain. i even disabled the create_directory but it
didnot worked out. the exim version is 4.43. below is the configuration of
exim.
Thanks
Runtime configuration file for
Exim
#
######################################################################
# This is a default configuration file which will operate correctly
in
# uncomplicated installations. Please see the manual for a complete
list
# of all the runtime configuration options that can be included in
a
# configuration file. There are many more than are mentioned here.
The
# manual is in the file doc/spec.txt in the Exim distribution as a
plain
# ASCII file. Other formats (PostScript, Texinfo, HTML, PDF) are
available
# from the Exim ftp sites. The manual is also online at the
Exim web sites.
# This file is divided into several parts, all
but the first of which are
# headed by a line starting with the word
"begin". Only those parts that
# are required need to be present. Blank
lines, and lines starting with #
# are ignored.
###########
IMPORTANT ########## IMPORTANT ########### IMPORTANT ###########
#
#
# Whenever you change Exim's configuration file, you *must* remember
to #
# HUP the Exim daemon, because it will not pick up
the new configuration #
# until you do. However, any other
Exim processes that are started, for #
# example, a
process started by an MUA in order to send a message, will
#
# see the new configuration as soon as it is in
place.
#
#
#
# You do not need to HUP the daemon for changes in auxiliary files
that #
# are referenced from this file. They are read
every time they are used. #
#
#
# It is usually a good idea to test a new configuration for
syntactic #
# correctness before installing
it (for example, by running the command #
# "exim -C
/config/file.new
-bV").
#
#
#
########### IMPORTANT ########## IMPORTANT ########### IMPORTANT
###########
######################################################################
#
MAIN CONFIGURATION
SETTINGS
#
######################################################################
# Specify your host's canonical name here. This should normally be the
fully
# qualified "official" name of your host. If this option is not
set, the
# uname() function is called to obtain the name. In many cases
this does
# the right thing and you need not set anything explicitly.
# primary_hostname =
# The next three settings create two
lists of domains and one list of hosts.
# These lists are referred to
later in this configuration using the syntax
# +local_domains,
+relay_to_domains, and +relay_from_hosts, respectively. They
# are all
colon-separated lists:
domainlist local_domains = localhost :
domain1.com :domain2.com : domain3.com
domainlist relay_to_domains =
hostlist relay_from_hosts = 127.0.0.1
# Most
straightforward access control requirements can be obtained by
#
appropriate settings of the above options. In more complicated situations,
you
# may need to modify the Access Control List (ACL) which appears
later in this
# file.
# The first setting specifies your local
domains, for example:
#
# domainlist local_domains =
my.first.domain : my.second.domain
#
# You can use "@" to mean "the
name of the local host", as in the default
# setting above. This is the
name that is specified by primary_hostname,
# as specified above (or
defaulted). If you do not want to do any local
# deliveries, remove the
"@" from the setting above. If you want to accept mail
# addressed to
your host's literal IP address, for example, mail addressed to
#
"[EMAIL PROTECTED]", you can add "@[]" as an item in the local domains
# list. You also need to uncomment "allow_domain_literals" below. This is
not
# recommended for today's Internet.
# The second setting
specifies domains for which your host is an incoming relay.
# If you are
not doing any relaying, you should leave the list empty. However,
# if
your host is an MX backup or gateway of some kind for some domains, you
#
must set relay_to_domains to match those domains. For example:
#
#
domainlist relay_to_domains = *.myco.com : my.friend.org
#
# This will
allow any host to relay through your host to those domains.
# See the
section of the manual entitled "Control of relaying" for more
#
information.
# The third setting specifies hosts that can use your
host as an outgoing relay
# to any other host on the Internet. Such a
setting commonly refers to a
# complete local network as well as the
localhost. For example:
#
# hostlist relay_from_hosts = 127.0.0.1 :
192.168.0.0/16
#
# The "/16" is a bit mask (CIDR notation), not a
number of hosts. Note that you
# have to include 127.0.0.1 if you want to
allow processes on your host to send
# SMTP mail by using the loopback
address. A number of MUAs use this method of
# sending mail.
#
All three of these lists may contain many different kinds of item,
including
# wildcarded names, regular expressions, and file lookups. See
the reference
# manual for details. The lists above are used in the
access control list for
# incoming messages. The name of this ACL is
defined here:
acl_smtp_rcpt = acl_check_rcpt
# You should not
change that setting until you understand how ACLs work.
# The
following ACL entries are used if you want to do content scanning with
#
the exiscan-acl patch. When you uncomment one of these lines, you must
also
# review the respective entries in the ACL section further below.
# acl_smtp_mime = acl_check_mime
# acl_smtp_data =
acl_check_content
# This configuration variable defines the virus
scanner that is used with
# the 'malware' ACL condition of the exiscan
acl-patch. If you do not use
# virus scanning, leave it commented. Please
read doc/exiscan-acl-readme.txt
# for a list of supported scanners.
# av_scanner = sophie:/var/run/sophie
# The following setting is
only needed if you use the 'spam' ACL condition
# of the exiscan-acl
patch. It specifies on which host and port the SpamAssassin
# "spamd"
daemon is listening. If you do not use this condition, or you use
# the
default of "127.0.0.1 783", you can omit this option.
# spamd_address
= 127.0.0.1 783
# Specify the domain you want to be added to all
unqualified addresses
# here. An unqualified address is one that does not
contain an "@" character
# followed by a domain. For example,
"[EMAIL PROTECTED]" is a fully qualified
# address, but the string
"caesar" (i.e. just a login name) is an unqualified
# email address.
Unqualified addresses are accepted only from local callers by
# default.
See the recipient_unqualified_hosts option if you want to permit
#
unqualified addresses from remote sources. If this option is not set, the
# primary_hostname value is used for qualification.
qualify_domain =
localhost
# If you want unqualified recipient addresses to be
qualified with a different
# domain to unqualified sender addresses,
specify the recipient domain here.
# If this option is not set, the
qualify_domain value is used.
# qualify_recipient =
# The
following line must be uncommented if you want Exim to recognize
#
addresses of the form "[EMAIL PROTECTED]" that is, with a "domain
literal"
# (an IP address) instead of a named domain. The RFCs still
require this form,
# but it makes little sense to permit mail to be sent
to specific hosts by
# their IP address in the modern Internet. This
ancient format has been used
# by those seeking to abuse hosts by using
them for unwanted relaying. If you
# really do want to support domain
literals, uncomment the following line, and
# see also the
"domain_literal" router below.
# allow_domain_literals
#
No deliveries will ever be run under the uids of these users (a colon-
#
separated list). An attempt to do so causes a panic error to be logged,
and
# the delivery to be deferred. This is a paranoic safety catch. There
is an
# even stronger safety catch in the form of the FIXED_NEVER_USERS
setting
# in the configuration for building Exim. The list of users that
it specifies
# is built into the binary, and cannot be changed. The
option below just adds
# additional users to the list. The default for
FIXED_NEVER_USERS is "root",
# but just to be absolutely sure, the
default here is also "root".
# Note that the default setting means
you cannot deliver mail addressed to root
# as if it were a normal user.
This isn't usually a problem, as most sites have
# an alias for root that
redirects such mail to a human administrator.
never_users = root
# The setting below causes Exim to do a reverse DNS lookup on all
incoming
# IP calls, in order to get the true host name. If you feel this
is too
# expensive, you can specify the networks for which a lookup is
done, or
# remove the setting entirely.
#host_lookup = *
# The settings below, which are actually the same as the defaults in
the
# code, cause Exim to make RFC 1413 (ident) callbacks for all
incoming SMTP
# calls. You can limit the hosts to which these calls are
made, and/or change
# the timeout that is used. If you set the timeout to
zero, all RFC 1413 calls
# are disabled. RFC 1413 calls are cheap and
can provide useful information
# for tracing problem messages, but some
hosts and firewalls have problems
# with them. This can result in a
timeout instead of an immediate refused
# connection, leading to delays
on starting up an SMTP session.
rfc1413_hosts = *
rfc1413_query_timeout = 30s
# By default, Exim expects all
envelope addresses to be fully qualified, that
# is, they must contain
both a local part and a domain. If you want to accept
# unqualified
addresses (just a local part) from certain hosts, you can specify
# these
hosts by setting one or both of
#
sender_unqualified_hosts =
localhost
recipient_unqualified_hosts = localhost
#
# to control
sender and recipient addresses, respectively. When this is done,
#
unqualified addresses are qualified using the settings of qualify_domain
# and/or qualify_recipient (see above).
# If you want Exim to
support the "percent hack" for certain domains,
# uncomment the following
line and provide a list of domains. The "percent
# hack" is the feature
by which mail addressed to [EMAIL PROTECTED] (where z is one of
# the domains listed)
is locally rerouted to [EMAIL PROTECTED] and sent on. If z is not one
# of the
"percent hack" domains, x%y is treated as an ordinary local part. This
#
hack is rarely needed nowadays; you should not enable it unless you are
sure
# that you really need it.
#
# percent_hack_domains =
#
# As well as setting this option you will also need to remove the test
#
for local parts containing % in the ACL definition below.
# When
Exim can neither deliver a message nor return it to sender, it "freezes"
# the delivery error message (aka "bounce message"). There are also
other
# circumstances in which messages get frozen. They will stay on
the queue for
# ever unless one of the following options is set.
# This option unfreezes frozen bounce messages after two days, tries
#
once more to deliver them, and ignores any delivery failures.
ignore_bounce_errors_after = 2d
# This option cancels (removes)
frozen messages that are older than a week.
timeout_frozen_after =
7d
######################################################################
#
ACL
CONFIGURATION
#
# Specifies access
control lists for incoming SMTP mail #
######################################################################
begin acl
# This access control list is used for every RCPT
command in an incoming
# SMTP message. The tests are run in order until
the address is either
# accepted or denied.
acl_check_rcpt:
# Accept if the source is local SMTP (i.e. not over TCP/IP). We do
this by
# testing for an empty sending host field.
accept hosts = :
#############################################################################
# The following section of the ACL is concerned with local parts
that contain
# @ or % or ! or / or | or dots in unusual
places.
#
# The characters other than dots are rarely
found in genuine local parts, but
# are often tried by people
looking to circumvent relaying restrictions.
# Therefore,
although they are valid in local parts, these rules lock them
#
out, as a precaution.
#
# Empty components (two dots in
a row) are not valid in RFC 2822, but Exim
# allows them because
they have been encountered. (Consider local parts
# constructed
as "firstinitial.secondinitial.familyname" when applied to
#
someone like me, who has no second initial.) However, a local part
starting
# with a dot or containing /../ can cause trouble if it
is used as part of a
# file name (e.g. for a mailing list). This
is also true for local parts that
# contain slashes. A pipe
symbol can also be troublesome if the local part is
#
incorporated unthinkingly into a shell command line.
#
# Two different rules are used. The first one is stricter, and is applied
to
# messages that are addressed to one of the local domains
handled by this
# host. It blocks local parts that begin with a
dot or contain @ % ! / or |.
# If you have local accounts that
include these characters, you will have to
# modify this rule.
deny
message = Restricted characters in
address
domains = +local_domains
local_parts = ^[.] : [EMAIL PROTECTED]/|]
# The second rule
applies to all other domains, and is less strict. This
# allows
your own users to send outgoing messages to sites that use slashes
# and vertical bars in their local parts. It blocks local parts that
begin
# with a dot, slash, or vertical bar, but allows these
characters within the
# local part. However, the sequence /../ is
barred. The use of @ % and ! is
# blocked, as before. The
motivation here is to prevent your users (or
# your users'
viruses) from mounting certain kinds of attack on remote sites.
deny message =
Restricted characters in address
domains = !+local_domains
local_parts = ^[./|] : [EMAIL PROTECTED] : ^.*/\\.\\./
#############################################################################
# Accept mail to postmaster in any local domain, regardless of
the source,
# and without verifying the sender.
accept local_parts = postmaster
domains = +local_domains
#
Deny unless the sender address can be verified.
require
verify = sender
#############################################################################
# There are no checks on DNS "black" lists because the domains that
contain
# these lists are changing all the time. However, here are
two examples of
# how you could get Exim to perform a DNS black
list lookup at this point.
# The first one denies, while the
second just warns.
#
# deny
message = rejected because
$sender_host_address is in a black list at $dnslist_domain\n$dnslist_text
#
dnslists = black.list.example
#
# warn message
= X-Warning: $sender_host_address is in a black list at $dnslist_domain
#
log_message = found in $dnslist_domain
#
dnslists = black.list.example
#############################################################################
# Accept if the address is in a local domain, but only if the
recipient can
# be verified. Otherwise deny. The "endpass" line is
the border between
# passing on to the next ACL statement (if
tests above it fail) or denying
# access (if tests below it
fail).
accept
domains = +local_domains
endpass
verify = recipient
#
Accept if the address is in a domain for which we are relaying, but
again,
# only if the recipient can be verified.
accept domains =
+relay_to_domains
endpass
verify = recipient
#
If control reaches this point, the domain is neither in +local_domains
# nor in +relay_to_domains.
# Accept if the message
comes from one of the hosts for which we are an
# outgoing relay.
Recipient verification is omitted here, because in many
# cases
the clients are dumb MUAs that don't cope well with SMTP error
#
responses. If you are actually relaying out from MTAs, you should
probably
# add recipient verification here.
accept hosts =
+relay_from_hosts
# Accept if the message arrived over an
authenticated connection, from
# any host. Again, these messages
are usually from MUAs, so recipient
# verification is omitted.
accept authenticated = *
# Reaching the end
of the ACL causes a "deny", but we might as well give
# an
explicit message.
deny
message = relay not permitted
# These access control lists are used for content scanning with the
exiscan-acl
# patch. You must also uncomment the entries for
acl_smtp_data and acl_smtp_mime
# (scroll up), otherwise the ACLs will
not be used. IMPORTANT: the default entries here
# should be treated as
EXAMPLES. You MUST read the file doc/exiscan-acl-spec.txt
# to fully
understand what you are doing ...
acl_check_mime:
#
Decode MIME parts to disk. This will support virus scanners later.
warn decode = default
# File extension filtering.
deny message = Blacklisted file extension detected
condition = ${if match \
{${lc:$mime_filename}} \
{\N(\.exe|\.pif|\.bat|\.scr|\.lnk|\.com)$\N} \
{1}{0}}
# Reject messages that carry chinese character
sets.
# WARNING: This is an EXAMPLE.
deny message =
Sorry, noone speaks chinese here
condition = ${if eq{$mime_charset}{gb2312}{1}{0}}
accept
acl_check_content:
# Reject virus infested messages.
deny message = This message contains malware ($malware_name)
malware = *
#
Always add X-Spam-Score and X-Spam-Report headers, using SA system-wide
settings
# (user "nobody"), no matter if over threshold or not.
warn message = X-Spam-Score: $spam_score ($spam_bar)
spam = nobody:true
warn message = X-Spam-Report: $spam_report
spam = nobody:true
# Add X-Spam-Flag if spam is over system-wide threshold
warn
message = X-Spam-Flag: YES
spam =
nobody
# Reject spam messages with score over 10, using an
extra condition.
deny message = This message scored
$spam_score points. Congratulations!
spam = nobody:true
condition = ${if
>{$spam_score_int}{100}{1}{0}}
# finally accept all the
rest
accept
######################################################################
#
ROUTERS
CONFIGURATION
#
#
Specifies how addresses are
handled
#
######################################################################
# THE ORDER IN WHICH THE ROUTERS ARE DEFINED IS
IMPORTANT! #
# An address is passed
to each router in turn until it is accepted. #
######################################################################
begin routers
# This router routes to remote hosts over SMTP by
explicit IP address,
# when an email address is given in "domain literal"
form, for example,
# <[EMAIL PROTECTED]>. The RFCs require this
facility. However, it is
# little-known these days, and has been
exploited by evil people seeking
# to abuse SMTP relays. Consequently it
is commented out in the default
# configuration. If you uncomment this
router, you also need to uncomment
# allow_domain_literals above, so that
Exim can recognize the syntax of
# domain literal addresses.
#
domain_literal:
# driver = ipliteral
# domains
= ! +local_domains
# transport = remote_smtp
#
This router routes addresses that are not in local domains by doing a DNS
# lookup on the domain name. Any domain that resolves to 0.0.0.0 or to a
# loopback interface address (127.0.0.0/8) is treated as if it had no
DNS
# entry. Note that 0.0.0.0 is the same as 0.0.0.0/32, which is
commonly treated
# as the local host inside the network stack. It is not
0.0.0.0/0, the default
# route. If the DNS lookup fails, no further
routers are tried because of
# the no_more setting, and consequently the
address is unrouteable.
dnslookup:
driver = dnslookup
domains = ! +local_domains
transport = remote_smtp
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
no_more
# The remaining routers handle addresses in the local domain(s).
# This router handles aliasing using a linearly searched alias file with
the
# name SYSTEM_ALIASES_FILE. When this configuration is installed
automatically,
# the name gets inserted into this file from whatever is
set in Exim's
# build-time configuration. The default path is the
traditional /etc/aliases.
# If you install this configuration by hand,
you need to specify the correct
# path in the "data" setting below.
#
##### NB You must ensure that the alias file exists. It used to
be the case
##### NB that every Unix had that file, because it was
the Sendmail default.
##### NB These days, there are systems that
don't have it. Your aliases
##### NB file should at least contain
an alias for "postmaster".
#
# If any of your aliases expand to pipes
or files, you will need to set
# up a user and a group for these
deliveries to run under. You can do
# this by uncommenting the "user"
option below (changing the user name
# as appropriate) and adding a
"group" option if necessary. Alternatively, you
# can specify "user" on
the transports that are used. Note that the transports
# listed below are
the same as are used for .forward files; you might want
# to set up
different ones for pipe and file deliveries from aliases.
system_aliases:
driver = redirect
allow_fail
allow_defer
data = ${lookup{$local_part}lsearch{/etc/aliases}}
user = harrypotter
file_transport = address_file
pipe_transport = address_pipe
# This router handles forwarding
using traditional .forward files in users'
# home directories. If you
want it also to allow mail filtering when a forward
# file starts with
the string "# Exim filter" or "# Sieve filter", uncomment
# the
"allow_filter" option.
# If you want this router to treat local parts
with suffixes introduced by "-"
# or "+" characters as if the suffixes
did not exist, uncomment the two local_
# part_suffix options. Then, for
example, [EMAIL PROTECTED] will be treated
# in the same way as
[EMAIL PROTECTED] by this router. You probably want to make
# the same
change to the localuser router.
# The no_verify setting means that
this router is skipped when Exim is
# verifying addresses. Similarly,
no_expn means that this router is skipped if
# Exim is processing an EXPN
command.
# The check_ancestor option means that if the forward file
generates an
# address that is an ancestor of the current one, the
current one gets
# passed on instead. This covers the case where A is
aliased to B and B
# has a .forward file pointing to A.
# The
three transports specified at the end are those that are used when
#
forwarding generates a direct delivery to a file, or to a pipe, or sets
#
up an auto-reply, respectively.
userforward:
driver =
redirect
check_local_user
# local_part_suffix = +* : -*
#
local_part_suffix_optional
file = $home/.forward
#
allow_filter
no_verify
no_expn
check_ancestor
file_transport = address_file
pipe_transport = address_pipe
reply_transport = address_reply
# This router matches local user mailboxes. If the router fails, the
error
# message is "Unknown user".
# If you want this router to
treat local parts with suffixes introduced by "-"
# or "+" characters as
if the suffixes did not exist, uncomment the two local_
# part_suffix
options. Then, for example, [EMAIL PROTECTED] will be treated
# in the
same way as [EMAIL PROTECTED] by this router.
localuser:
driver = accept
# check_local_user
# local_part_suffix = +* : -*
#
local_part_suffix_optional
transport = local_delivery
cannot_route_message = Unknown user
######################################################################
#
TRANSPORTS
CONFIGURATION
#
######################################################################
#
ORDER DOES NOT
MATTER
#
# Only one appropriate transport is called for
each delivery. #
######################################################################
# A transport is used only when referenced from a router that
successfully
# handles an address.
begin transports
#
This transport is used for delivering messages over SMTP connections.
remote_smtp:
driver = smtp
# This transport is used
for local delivery to user mailboxes in traditional
# BSD mailbox
format. By default it will be run under the uid and gid of the
# local
user, and requires the sticky bit to be set on the /var/mail directory.
# Some systems use the alternative approach of running mail deliveries
under a
# particular group instead of using the sticky bit. The
commented options below
# show how this can be done.
local_delivery:
driver = appendfile
group = mail
mode = 0666
mode_fail_narrower = false
envelope_to_add = true
create_directory = true
directory = /usr/local/mail/${domain}/${local_part}/Maildir/
maildir_format
address_directory:
driver = appendfile
maildir_format
# This
transport is used for handling pipe deliveries generated by alias or
#
.forward files. If the pipe generates any standard output, it is
returned
# to the sender of the message as a delivery error. Set
return_fail_output
# instead of return_output if you want this to happen
only when the pipe fails
# to complete normally. You can set different
transports for aliases and
# forwards if you want to - see the
references to address_pipe in the routers
# section above.
address_pipe:
driver = pipe
return_output
# This transport is used for handling deliveries directly to files that
are
# generated by aliasing or forwarding.
address_file:
driver = appendfile
delivery_date_add
envelope_to_add
return_path_add
# This transport
is used for handling autoreplies generated by the filtering
# option of
the userforward router.
address_reply:
driver =
autoreply
# This transport is used to deliver local mail to
cyrus IMAP server via UNIX
# socket.
#
#local_delivery:
# driver = lmtp
# command = "/usr/lib/cyrus-imapd/deliver
-l"
# batch_max = 20
# user = cyrus
######################################################################
#
RETRY
CONFIGURATION
#
######################################################################
begin retry
# This single retry rule applies to all domains and
all errors. It specifies
# retries every 15 minutes for 2 hours, then
increasing retry intervals,
# starting at 1 hour and increasing each time
by a factor of 1.5, up to 16
# hours, then retries every 6 hours until 4
days have passed since the first
# failed delivery.
# Address or
Domain Error
Retries
# -----------------
----- -------
*
* F,2h,15m;
G,16h,1h,1.5; F,4d,6h
######################################################################
#
REWRITE
CONFIGURATION
#
######################################################################
# There are no rewriting specifications in this default configuration
file.
begin rewrite
######################################################################
#
AUTHENTICATION
CONFIGURATION
#
######################################################################
# There are no authenticator specifications in this default
configuration file.
begin authenticators
######################################################################
#
CONFIGURATION FOR
local_scan()
#
######################################################################
# If you have built Exim to include a local_scan() function that
contains
# tables for private options, you can define those options here.
Remember to
# uncomment the "begin" line. It is commented by default
because it provokes
# an error with Exim binaries that are not built with
LOCAL_SCAN_HAS_OPTIONS
# set in the Local/Makefile.
# begin
local_scan
# End of Exim configuration file
DISCLAIMER:
The contents of this e-mail (and any attachments) are confidential, may be
privileged and may contain copyright material of Company or third parties. You
may only reproduce or distribute the material if you are expressly authorized
by us to do so.
If you are not the intended recipient, any use, disclosure or copying of this
e-mail (and any attachments) is unauthorized. If you have received this e-mail
in error, please notify the sender via e-mail; delete it and any copies of it
from your system.
Although this message and its attachments have been scanned for viruses and no
viruses were detected, no responsibility whatsoever is accepted by the Company
for any loss or damage arising in any way from receipt or use thereof.
--
## List details at http://lists.exim.org/mailman/listinfo/exim-users
## Exim details at http://www.exim.org/
## Please use the Wiki with this list - http://wiki.exim.org/
