[exim] Ok, this time with feeling!

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Author: Sherwood Botsford
Date:  
To: exim-users
Subject: [exim] Ok, this time with feeling!

I wrote previously and Phillip pointed out that I hadn't
included enough information to tell what was up.

Briefly, the same configuration works with 4.31 and doesn't
with 4.42.

Below is a transcript of local delivery. This works fine
with 4.31. The problem is near the end of the transcript
when the mail message is reinjected from spamassassin.

At the end is my config file.


postie# exim -d -M 1CDOwO-0004h6-Ju
Exim version 4.42 uid=0 gid=0 pid=18058 D=fbb95cfd
Probably Berkeley DB version 1.8x (native mode)
Support for:
Lookups: lsearch wildlsearch nwildlsearch iplsearch dbm
dbmnz nis nis0
Authenticators: cram_md5 plaintext spa
Routers: accept dnslookup ipliteral manualroute queryprogram
redirect
Transports: appendfile/maildir/mailstore/mbx autoreply pipe
smtp
changed uid/gid: forcing real = effective
uid=0 gid=0 pid=18058
auxiliary group list: 0
configuration file is /opt/exim-4.42/configure
log selectors = 00000efc 00014400
trusted user
admin user
skipping ACL configuration - not needed
finduser used cached passwd data for exim
set_process_info: 18058 delivering specified messages
set_process_info: 18058 delivering 1CDOwO-0004h6-Ju
reading spool file 1CDOwO-0004h6-Ju-H
user=exim uid=25 gid=25 sender=
sender_local=0 ident=exim
Non-recipients:
-->sbotsford@???/copy_stream [1]
-->root@???/copy_stream [0]
---- End of tree ----
recipients_count=1
body_linecount=36 message_linecount=10
LOG: MAIN
Unfrozen by forced delivery
Delivery address list:
root@???
locking /var/spool/exim/db/retry.lockfile
locked /var/spool/exim/db/retry.lockfile
opened hints database /var/spool/exim/db/retry: flags=0
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Considering: root@???
unique = root@???
dbfn_read: key=R:sjsa.ab.ca
dbfn_read: key=R:root@???
no domain retry record
no address retry record
root@???: queued for routing
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

routing root@???
--------> send_to_gateway router <--------
local_part=root domain=sjsa.ab.ca
checking domains
sjsa.ab.ca in "@ : localhost : localhost.sjsa.internal.net
*.sjsa.ab.ca:sjsa.ab.
ca : *.sjsa.internal.net : sjsa.internal.net
:129.168.1.0/24"? yes (matched "sjs
a.ab.ca")
sjsa.ab.ca in "!+local_domains"? no (matched
"!+local_domains")
send_to_gateway router skipped: domains mismatch
--------> dnslookup router <--------
local_part=root domain=sjsa.ab.ca
checking domains
cached yes match for +local_domains
cached lookup data = NULL
sjsa.ab.ca in "! +local_domains"? no (matched "!
+local_domains" - cached)
dnslookup router skipped: domains mismatch
--------> copy_stream router <--------
local_part=root domain=sjsa.ab.ca
calling copy_stream router
copy_stream router called for root@???
domain = sjsa.ab.ca
set transport stream_delivery
queued for stream_delivery transport: local_part = root
domain = sjsa.ab.ca
errors_to=NULL
domain_data=NULL localpart_data=NULL
routed by copy_stream router (unseen)
envelope to: root@???
transport: stream_delivery
"unseen" set: replicated root@???
"unseen" delivery previously done - discarded
root@??? was previously delivered: discarded
locking /var/spool/exim/db/retry.lockfile
locked /var/spool/exim/db/retry.lockfile
opened hints database /var/spool/exim/db/retry: flags=0
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Considering: root@???
unique = \0\root@???
dbfn_read: key=R:sjsa.ab.ca
dbfn_read: key=R:root@???
no domain retry record
no address retry record
root@???: queued for routing
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

routing root@???
--------> system_aliases router <--------
local_part=root domain=sjsa.ab.ca
calling system_aliases router
rda_interpret (string):
${lookup{$local_part}lsearch{/etc/aliases}}
search_open: lsearch "/etc/aliases"
search_find: file="/etc/aliases"
key="root" partial=-1 affix=NULL starflags=0
LRU list:
:/etc/aliases
End
internal_search_find: file="/etc/aliases"
type=lsearch key="root"
file lookup required for root
in /etc/aliases
lookup yielded: sbotsford@???
expanded: sbotsford@???
file is not a filter file
parse_forward_list: sbotsford@???
extract item: sbotsford@???
system_aliases router generated sbotsford@???
errors_to=NULL transport=NULL
uid=unset gid=unset home=NULL
routed by system_aliases router
envelope to: root@???
transport: <none>
locking /var/spool/exim/db/retry.lockfile
locked /var/spool/exim/db/retry.lockfile
opened hints database /var/spool/exim/db/retry: flags=0
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Considering: sbotsford@???
unique = sbotsford@???
dbfn_read: key=R:sjsa.internal.net
dbfn_read: key=R:sbotsford@???
no domain retry record
no address retry record
sbotsford@???: queued for routing
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

routing sbotsford@???
--------> send_to_gateway router <--------
local_part=sbotsford domain=sjsa.internal.net
checking domains
sjsa.internal.net in "@ : localhost :
localhost.sjsa.internal.net *.sjsa.ab.ca:s
jsa.ab.ca : *.sjsa.internal.net : sjsa.internal.net
:129.168.1.0/24"? yes (match
ed "sjsa.internal.net")
sjsa.internal.net in "!+local_domains"? no (matched
"!+local_domains")
send_to_gateway router skipped: domains mismatch
--------> dnslookup router <--------
local_part=sbotsford domain=sjsa.internal.net
checking domains
cached yes match for +local_domains
cached lookup data = NULL
sjsa.internal.net in "! +local_domains"? no (matched "!
+local_domains" - cached
)
dnslookup router skipped: domains mismatch
--------> copy_stream router <--------
local_part=sbotsford domain=sjsa.internal.net
calling copy_stream router
copy_stream router called for sbotsford@???
domain = sjsa.internal.net
queued for stream_delivery transport: local_part = sbotsford
domain = sjsa.internal.net
errors_to=NULL
domain_data=NULL localpart_data=NULL
routed by copy_stream router (unseen)
envelope to: sbotsford@???
transport: stream_delivery
"unseen" set: replicated sbotsford@???
"unseen" delivery previously done - discarded
sbotsford@??? was previously delivered:
discarded
locking /var/spool/exim/db/retry.lockfile
locked /var/spool/exim/db/retry.lockfile
opened hints database /var/spool/exim/db/retry: flags=0
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Considering: sbotsford@???
unique = \0\sbotsford@???
dbfn_read: key=R:sjsa.internal.net
dbfn_read: key=R:sbotsford@???
no domain retry record
no address retry record
sbotsford@???: queued for routing
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

routing sbotsford@???
--------> system_aliases router <--------
local_part=sbotsford domain=sjsa.internal.net
calling system_aliases router
rda_interpret (string):
${lookup{$local_part}lsearch{/etc/aliases}}
search_open: lsearch "/etc/aliases"
cached open
search_find: file="/etc/aliases"
key="sbotsford" partial=-1 affix=NULL starflags=0
LRU list:
:/etc/aliases
End
internal_search_find: file="/etc/aliases"
type=lsearch key="sbotsford"
file lookup required for sbotsford
in /etc/aliases
lookup failed
expanded:
file is not a filter file
parse_forward_list:
system_aliases router declined for
sbotsford@???
--------> spamcheck_router router <--------
local_part=sbotsford domain=sjsa.internal.net
checking for local user
checking "condition"
calling spamcheck_router router
spamcheck_router router called for
sbotsford@???
domain = sjsa.internal.net
set transport spamcheck
queued for spamcheck transport: local_part = sbotsford
domain = sjsa.internal.net
errors_to=NULL
domain_data=NULL localpart_data=NULL
routed by spamcheck_router router
envelope to: sbotsford@???
transport: spamcheck
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

After routing:
  Local deliveries:
    sbotsford@???
  Remote deliveries:
  Failed addresses:
  Deferred addresses:
search_tidyup called

>>>>>>>>>>>>>>>> Local deliveries >>>>>>>>>>>>>>>>

--------> sbotsford@??? <--------
locking /var/spool/exim/db/retry.lockfile
locked /var/spool/exim/db/retry.lockfile
opened hints database /var/spool/exim/db/retry: flags=0
dbfn_read: key=T:sbotsford@???
no retry record exists
search_tidyup called
changed uid/gid: local delivery to sbotsford
<sbotsford@???> trans
port=spamcheck
uid=25 gid=6 pid=18059
auxiliary group list: 6
home=/tmp current=/tmp
set_process_info: 18059 delivering 1CDOwO-0004h6-Ju to
sbotsford using spamcheck
direct command:
argv[0] = /opt/exim/bin/spamc
direct command after expansion:
argv[0] = /opt/exim/bin/spamc
spamcheck transport entered
direct command:
argv[0] = /opt/exim/bin/exim
argv[1] = -oMr
argv[2] = spam-scanned
argv[3] = -bS
direct command after expansion:
argv[0] = /opt/exim/bin/exim
argv[1] = -oMr
argv[2] = spam-scanned
argv[3] = -bS
Writing message to pipe
writing data block fd=11 size=0 timeout=3600
writing data block fd=11 size=13 timeout=3600
writing data block fd=11 size=38 timeout=3600
writing data block fd=11 size=5 timeout=3600
process 18062 running as transport filter: write=12 read=13
process 18063 writing to transport filter
copying from the filter
set_process_info: 18061 reading output from
|/opt/exim/bin/exim -oMr spam-scanne
d -bS
waiting for filter process
writing data block fd=12 size=511 timeout=3600
filter process returned 127
writing error 32: Broken pipe
waiting for writing process
end of filtering transport writing: yield=0
errno=32 more_errno=0
transport error EPIPE ignored
spamcheck transport yielded 2
search_tidyup called
spamcheck transport returned FAIL for
sbotsford@???
post-process sbotsford@??? (2)
LOG: MAIN
<sbotsford@???>: spamcheck transport output:
An error was detect
ed while processing a file of BSMTP input.
LOG: MAIN
** sbotsford@??? <root@???>
R=spamcheck_router T=spamchec
k: Child process of spamcheck transport returned 2 from
command: /opt/exim/bin/e
xim
>>>>>>>>>>>>>>>> deliveries are done >>>>>>>>>>>>>>>>

changed uid/gid: post-delivery tidying
uid=25 gid=25 pid=18058
auxiliary group list: 25
set_process_info: 18058 tidying up after delivering
1CDOwO-0004h6-Ju
Processing retry items
Succeeded addresses:
root@???: no retry items
root@???: no retry items
Failed addresses:
Deferred addresses:
sbotsford@???: no retry items
sbotsford@???: no retry items
root@???: no retry items
root@???: no retry items
end of retry processing
LOG: MAIN
Frozen (delivery error message)
delivery deferred: update_spool=1 header_rewritten=0
Writing spool header file
Size of headers = 433
end delivery of 1CDOwO-0004h6-Ju
search_tidyup called
search_tidyup called
>>>>>>>>>>>>>>>> Exim pid=18058 terminating with rc=0
>>>>>>>>>>>>>>>>



Here's my configure file:

######################################################################
#                  Runtime configuration file for Exim               
#
######################################################################


# SJSA MODIFIED


# 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                     
#
######################################################################



log_selector = +subject -queue_run
log_file_path = syslog

# 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 = postie.sjsa.ab.ca


# 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 : 
localhost.sjsa.internal.net \
                *.sjsa.ab.ca:sjsa.ab.ca : \
                *.sjsa.internal.net : sjsa.internal.net :\
                129.168.1.0/24


domainlist relay_to_domains =
hostlist relay_from_hosts = 127.0.0.1 : 192.168.1.0/24

# 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
# "user@???", 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
#acl_smtp_mime = acl_check_mime
acl_smtp_data = acl_check_content

# You should not change that setting until you understand
how ACLs work.


# 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, "caesar@???"
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 = sjsa.ab.ca


# 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 = sjsa.ab.ca


# The following line must be uncommented if you want Exim to
recognize
# addresses of the form "user@???" 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. 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 = 192.168.1.0/24
recipient_unqualified_hosts = 192.168.1.0/24
#
# 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 x%y@z
(where z is one of
# the domains listed) is locally rerouted to x@y 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 = 1h

# 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 = :


# 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     domains       = +local_domains
          local_parts   = ^[.] : ^.*[@%!/|]


# 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    domains       = !+local_domains
          local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./


# Accept mail to postmaster in any local domain,
regardless of the source,
# and without verifying the sender.

  accept  local_parts   = postmaster
          domains       = +local_domains


  # Accept all local domains until we get DNS working.
  accept        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
          message       = unknown user
          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
          message       = unrouteable address
          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


acl_check_mime:
# Decode MIME parts to disk. This will support virus
scanners later.
warn decode = default

  # File extension filtering.
  warn message = X-Spam-Ext: Blacklisted file extension 
detected
       condition = ${if match \
                        {${lc:$mime_filename}} \


{\N(\.exe|\.pif|\.bat|\.scr|\.lnk|\.com)$\N} \
                     {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-Bar: SPAM ($spam_bar)
       spam = nobody:true


  warn  message = X-Spam-Report: $spam_report
        spam = nobody:true
    condition = ${if >{$spam_score}{40}{1}{0}}


  # 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.
  ##warn  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,
# <user@???>. 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



# ADDED 12 July 2002 SGB
# Modified to route specific domains to telus

send_to_gateway:
     driver = manualroute
     domains = !+local_domains
     transport = remote_smtp
     route_list = aol.com mx02.telusplanet.net ; \
        netcom.ca mx02.telusplanet.net ; \
        compuserve.com mx02.telusplanet.net ; \
        ecn.ab.ca mx02.telusplanet.net ; \
        sierrawireless.com mx02.telusplanet.net ; \
        cs.com    mx02.telusplanet.net    ; \
        *.mr.outblaze.com mx02.telusplanet.net ;\
        *.ualberta.net mx02.telusplanet.net ;\
        mail.mcprint.ca mx02.telusplanet.net ;\
        mail.global.frontbridge.com mx02.telusplanet.net ;\
#        hotmail.com mx02.telusplanet.net    ; \
#        *.kerio.com mx02.telusplanet.net ;


#     route_list = * smtp.incentre.net
#     route_list = * 192.168.1.2


# 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 traditional
/etc/aliases file.
#
##### NB You must ensure that /etc/aliases 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.

copy_stream:
driver = accept
transport = stream_delivery
unseen

system_aliases:
driver = redirect
allow_fail
allow_defer
data = ${lookup{$local_part}lsearch{/etc/aliases}}
# user = exim
file_transport = address_file
pipe_transport = address_pipe

# Placed here so that local aliases happen first.
spamcheck_router:
  no_verify
  check_local_user
  # When to scan a message :
  #   -   it isn't already flagged as spam
  #   -   it isn't already scanned
  condition = \
  "${if and { {!def:h_X-Spam-Flag:} \
              {!eq {$received_protocol}{spam-scanned}} \
            }\
            {1}{0}\
    }"
  driver = accept
  transport = spamcheck


# 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", uncomment the
"allow_filter"
# option.

# 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
file = $home/.forward
no_verify
no_expn
check_ancestor
allow_filter
directory_transport = address_file
file_transport = address_file
pipe_transport = address_pipe
reply_transport = address_reply


# This router matches local user mailboxes.

localuser:
driver = accept
check_local_user
transport = local_delivery

unkownlocaluser:
driver = accept
transport = unknown_local_delivery

######################################################################
#                      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

# SpamAssassin
spamcheck:
    driver = pipe
    command = /opt/exim/bin/exim -oMr spam-scanned -bS
    use_bsmtp = true
    transport_filter = /opt/exim/bin/spamc
    home_directory = "/tmp"
    current_directory = "/tmp"
# must use a privileged user to set $received_protocol on 
the way back in!
    user = exim
    group = mail
    log_output = true
    return_fail_output = true
    return_path_add = false
    message_prefix =
    message_suffix =



# 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
file = /var/mail/$local_part
delivery_date_add
envelope_to_add
return_path_add
group = mail
mode = 0660

stream_delivery:
driver = appendfile
file = /var/mail/mailstream
user=exim
group=mail
mode = 0660

unknown_local_delivery:
driver = appendfile
file = /var/mail/postmaster
user = postmaster
delivery_date_add
envelope_to_add
group = mail
mode = 0660

# 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
group = mail
mode = 0660
check_owner = false

# This transport is used for handling autoreplies generated
by the filtering
# option of the userforward router.

address_reply:
driver = autoreply



######################################################################
#                      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.

# Domain               Error       Retries
# ------               -----       -------


#*                      *           F,2h,15m; G,16h,1h,1.5; 
F,4d,6h


# Every 15 for 2 hours, every 30 min for 4 more, every 2
hours for the
# rest of the day, every 6 hours for 4 days.

*                      *           F,2h,15m; F,4h,30m ; 
F,18h,2h; F,4d,6h


# BANG on hotmail's door until it opens

*.hotmail.com        *        F,3d,5m


# If we can't deliver locally bounce it quickly.

sjsa.ab.ca        *       F, 1h, 15m


######################################################################
#                      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


# End of Exim configuration file