exim-4.76-1 fails to remove lock from spooler on delivery

exim-4.76-1 fails to remove lock from spooler on delivery

[Zdzislaw Meglicki]

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I have a problem with exim-4.76-1 on my Cygwin installation under Windows 7. On 
having received a message addressed to a local user, exim creates the lock file 
in the /var/spool/mail directory and ... freezes. The message shows up in mailq 
as "frozen". I have to remove the lock file manually, then run exim -M on the 
message ID for its final delivery into the user file.

Here is an example... I send a message from another machine to user "gustav" on 
"yanchep". The message *does* get appended successfully to file "gustav" in the 
spooler. But the lock does not go away and mailq shows the message as still 
frozen.

root@yanchep /var/spool/mail
$ ls -l
total 8
-rw-rw-rw- 1 gustav Domain Users 7871 Oct 25 17:19 gustav
-rw-rw-rw- 1 gustav Domain Users    0 Oct 25 17:19 gustav.lock
-rw-rw-rw- 1 root   None            0 Oct 25 16:55 root
root@yanchep /var/spool/mail
$ mailq
 0m   696 LTN4KK-0004JW-PT <gustav@indiana.edu> *** frozen ***
          gustav@yanchep.ovpit.indiana.edu

root@yanchep /var/spool/mail
$

In case this has something to do with permissions, here is what they look like 
on this system:

root@yanchep /var/spool   
$ pwd    
/var/spool                                                                                                                       
 
root@yanchep /var/spool 
$ ls -ld                                                         
drwxr-xr-x+ 1 root root 0 Oct 25 15:33 
.                                                                                         
 root@yanchep /var/spool                                          

$ ls -l                                                         
total 0                                                          
drwxrwxrwx+ 1 SYSTEM root 0 Oct 25 15:20 exim                    
drwxrwxrwt+ 1 root   None 0 Oct 25 17:19 
mail                                                                                    
 root@yanchep /var/spool                                          

$ ls -l mail                                                     
total 8                                                          
-rw-rw-rw- 1 gustav Domain Users 7871 Oct 25 17:19 gustav        
-rw-rw-rw- 1 gustav Domain Users    0 Oct 25 17:19 gustav.lock   
-rw-rw-rw- 1 root   None            0 Oct 25 16:55 
root                                                                           
root@yanchep /var/spool  
$

I attach the log of cygcheck -s -r -v on cygcheck.out.gz and my exim.conf.

Zdzislaw Meglicki
Indiana University
http://perth.ovpit.indiana.edu/gustav                                                              

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[-- Attachment #3: exim.conf --]
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# $Cambridge: exim/src/src/configure.default,v 1.15 2010/06/03 08:19:13 pdp Exp $

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

# Exim is compiled with ipv6 support. However that feature can be disabled
# by setting the field below to "true"

disable_ipv6 = false
 
# 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 = yanchep.ovpit.indiana.edu


# 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 = @
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 Lists (ACLs) which appear 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@[192.168.23.44]", 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 lists for
# checking incoming messages. The names of these ACLs are defined here:

acl_smtp_rcpt = acl_check_rcpt
acl_smtp_data = acl_check_data

# You should not change those settings until you understand how ACLs work.


# If you are running a version of Exim that was compiled with the content-
# scanning extension, you can cause incoming messages to be automatically
# scanned for viruses. You have to modify the configuration in two places to
# set this up. The first of them is here, where you define the interface to
# your scanner. This example is typical for ClamAV; see the manual for details
# of what to set for other virus scanners. The second modification is in the
# acl_check_data access control list (see below).

# av_scanner = clamd:/tmp/clamd


# For spam scanning, there is a similar option that defines the interface to
# SpamAssassin. You do not need to set this if you are using the default, which
# is shown in this commented example. As for virus scanning, you must also
# modify the acl_check_data access control list to enable spam scanning.

# spamd_address = 127.0.0.1 783


# If Exim is compiled with support for TLS, you may want to enable the
# following options so that Exim allows clients to make encrypted
# connections. In the authenticators section below, there are template
# configurations for plaintext username/password authentication. This kind
# of authentication is only safe when used within a TLS connection, so the
# authenticators will only work if the following TLS settings are turned on
# as well.

# Allow any client to use TLS.

# tls_advertise_hosts = *

# Specify the location of the Exim server's TLS certificate and private key.
# The private key must not be encrypted (password protected). You can put
# the certificate and private key in the same file, in which case you only
# need the first setting, or in separate files, in which case you need both
# options.

# tls_certificate = /etc/ssl/exim.crt
# tls_privatekey = /etc/ssl/exim.pem

# In order to support roaming users who wish to send email from anywhere,
# you may want to make Exim listen on other ports as well as port 25, in
# case these users need to send email from a network that blocks port 25.
# The standard port for this purpose is port 587, the "message submission"
# port. See RFC 4409 for details. Microsoft MUAs cannot be configured to
# talk the message submission protocol correctly, so if you need to support
# them you should also allow TLS-on-connect on the traditional but
# non-standard port 465.

# daemon_smtp_ports = 25 : 465 : 587
# tls_on_connect_ports = 465


# 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@rome.example" 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 =


# 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 =

# When reading a user name from the gecos field in the passwd file, remove 
# the Cygwin specific information.

gecos_pattern = (.*?)(,U-|,S-|$)
gecos_name = $1 

# The following line must be uncommented if you want Exim to recognize
# addresses of the form "user@[10.11.12.13]" 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 users specified by
# never_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.
# The default is disabled in Cygwin, not all installations have root.

# 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.
# In Cygwin the localhost is not looked up (matching relay_from_hosts)

host_lookup = !127.0.0.1/8:*


# 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 SMTP sessions. (The default was
# reduced from 30s to 5s for release 4.61.)

rfc1413_hosts = !127.0.0.1/8:*
rfc1413_query_timeout = 5s


# 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 =
# recipient_unqualified_hosts =
#
# 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 = 2d

# This option cancels (removes) frozen messages that are older than a week.

timeout_frozen_after = 7d


# By default, messages that are waiting on Exim's queue are all held in a
# single directory called "input" which it itself within Exim's spool
# directory. (The default spool directory is specified when Exim is built, and
# is often /var/spool/exim/.) Exim works best when its queue is kept short, but
# there are circumstances where this is not always possible. If you uncomment
# the setting below, messages on the queue are held in 62 subdirectories of
# "input" instead of all in the same directory. The subdirectories are called
# 0, 1, ... A, B, ... a, b, ... z. This has two benefits: (1) If your file
# system degrades with many files in one directory, this is less likely to
# happen; (2) Exim can process the queue one subdirectory at a time instead of
# all at once, which can give better performance with large queues.

# split_spool_directory = true


# If you're in a part of the world where ASCII is not sufficient for most
# text, then you're probably familiar with RFC2047 message header extensions.
# By default, Exim adheres to the specification, including a limit of 76
# characters to a line, with encoded words fitting within a line.
# If you wish to use decoded headers in message filters in such a way
# that successful decoding of malformed messages matters, you may wish to
# configure Exim to be more lenient.
#
# check_rfc2047_length = false
#
# In particular, the Exim maintainers have had multiple reports of problems
# from Russian administrators of issues until they disable this check,
# because of some popular, yet buggy, mail composition software.


######################################################################
#                       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 = :
          control = dkim_disable_verify

  #############################################################################
  # 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. The line "domains = +local_domains" restricts it to domains that are
  # defined by the "domainlist local_domains" setting above. The rule  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   = ^[.] : ^.*[@%!/|]

  # The second rule applies to all other domains, and is less strict. The line
  # "domains = !+local_domains" restricts it to domains that are NOT defined by
  # the "domainlist local_domains" setting above. The exclamation mark is a
  # negating operator. This rule 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   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
  #############################################################################

  # 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

  # Accept if the message comes from one of the hosts for which we are an
  # outgoing relay. It is assumed that such hosts are most likely to be MUAs,
  # so we set control=submission to make Exim treat the message as a
  # submission. It will fix up various errors in the message, for example, the
  # lack of a Date: header line. If you are actually relaying out out from
  # MTAs, you may want to disable this. If you are handling both relaying from
  # MTAs and submissions from MUAs you should probably split them into two
  # lists, and handle them differently.

  # 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.

  # Note that, by putting this test before any DNS black list checks, you will
  # always accept from these hosts, even if they end up on a black list. The
  # assumption is that they are your friends, and if they get onto a black
  # list, it is a mistake.

  accept  hosts         = +relay_from_hosts
          control       = submission
          control       = dkim_disable_verify

  # Accept if the message arrived over an authenticated connection, from
  # any host. Again, these messages are usually from MUAs, so recipient
  # verification is omitted, and submission mode is set. And again, we do this
  # check before any black list tests.

  accept  authenticated = *
          control       = submission
          control       = dkim_disable_verify

  # Insist that any other recipient address that we accept is either in one of
  # our local domains, or is in a domain for which we explicitly allow
  # relaying. Any other domain is rejected as being unacceptable for relaying.

  require message = relay not permitted
          domains = +local_domains : +relay_to_domains

  # We also require all accepted addresses to be verifiable. This check will
  # do local part verification for local domains, but only check the domain
  # for remote domains. The only way to check local parts for the remote
  # relay domains is to use a callout (add /callout), but please read the
  # documentation about callouts before doing this.

  require verify = recipient

  #############################################################################
  # There are no default 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 can get Exim to perform a DNS black list lookup at this
  # point. The first one denies, whereas 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    dnslists      = black.list.example
  #         add_header    = X-Warning: $sender_host_address is in a black list at $dnslist_domain
  #         log_message   = found in $dnslist_domain
  #############################################################################

  #############################################################################
  # This check is commented out because it is recognized that not every
  # sysadmin will want to do it. If you enable it, the check performs
  # Client SMTP Authorization (csa) checks on the sending host. These checks
  # do DNS lookups for SRV records. The CSA proposal is currently (May 2005)
  # an Internet draft. You can, of course, add additional conditions to this
  # ACL statement to restrict the CSA checks to certain hosts only.
  #
  # require verify = csa
  #############################################################################

  # At this point, the address has passed all the checks that have been
  # configured, so we accept it unconditionally.

  accept


# This ACL is used after the contents of a message have been received. This
# is the ACL in which you can test a message's headers or body, and in
# particular, this is where you can invoke external virus or spam scanners.
# Some suggested ways of configuring these tests are shown below, commented
# out. Without any tests, this ACL accepts all messages. If you want to use
# such tests, you must ensure that Exim is compiled with the content-scanning
# extension (WITH_CONTENT_SCAN=yes in Local/Makefile).

acl_check_data:

  # Deny if the message contains a virus. Before enabling this check, you
  # must install a virus scanner and set the av_scanner option above.
  #
  # deny    malware    = *
  #         message    = This message contains a virus ($malware_name).

  # Add headers to a message if it is judged to be spam. Before enabling this,
  # you must install SpamAssassin. You may also need to set the spamd_address
  # option above.
  #
  # warn    spam       = nobody
  #         add_header = X-Spam_score: $spam_score\n\
  #                      X-Spam_score_int: $spam_score_int\n\
  #                      X-Spam_bar: $spam_bar\n\
  #                      X-Spam_report: $spam_report

  # Accept the message.

  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@[192.168.35.64]>. 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. The exclamation mark that appears in "domains = !
# +local_domains" is a negating operator, that is, it can be read as "not". The
# recipient's domain must not be one of those defined by "domainlist
# local_domains" above for this router to be used.
#
# If the router is used, 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
# If the first host starts with '&', fallback on DEFER or FAIL.
# If the first host starts with '=', fallback on FAIL only.
# If neither, fallback on DEFER only.
# The first cases are Cygwin extensions for users with dynamic ip addresses
#  or when ISP policies force the use of a smart host.
# fallback_hosts = = : your.smart.host
  no_more


# The remaining routers handle addresses in the local domain(s), that is those
# domains that are defined by "domainlist local_domains" above.


# This router handles aliasing using a linearly searched alias file with the
# name /etc/aliases. 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 = exim
  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, xxxx-foo@your.domain will be treated
# in the same way as xxxx@your.domain 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, xxxx-foo@your.domain will be treated
# in the same way as xxxx@your.domain 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/spool/mail 
# directory, e.g. by "chmod ug+rwx,o+rwxt /var/spool/mail".
# The effect is that "other" can write files to the directory, but can only
# delete files they own.
# 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.
# The default on Cygwin is to allow maximum access and not check owner & group
# Turning initgroups on is inefficient. It should only be done if supplementary
# groups are needed during deliveries, e.g. to run filters. 
local_delivery:
  driver = appendfile
  file = /var/spool/mail/$local_part
  delivery_date_add
  envelope_to_add
  return_path_add
# group = mail
  initgroups = no
  mode = 0666
  mode_fail_narrower = no
  check_group = no
  check_owner = no


# 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



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

# WARNING: If you do not have any retry rules at all (this section of the
# configuration is non-existent or empty), Exim will not do any retries of
# messages that fail to get delivered at the first attempt. The effect will
# be to treat temporary errors as permanent. Therefore, DO NOT remove this
# retry rule unless you really don't want any retries.

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

# The following authenticators support plaintext username/password
# authentication using the standard PLAIN mechanism and the traditional
# but non-standard LOGIN mechanism, with Exim acting as the server.
# PLAIN and LOGIN are enough to support most MUA software.
#
# These authenticators are not complete: you need to change the
# server_condition settings to specify how passwords are verified.
# They are set up to offer authentication to the client only if the
# connection is encrypted with TLS, so you also need to add support
# for TLS. See the global configuration options section at the start
# of this file for more about TLS.
#
# The default RCPT ACL checks for successful authentication, and will accept
# messages from authenticated users from anywhere on the Internet.

begin authenticators

# PLAIN authentication has no server prompts. The client sends its
# credentials in one lump, containing an authorization ID (which we do not
# use), an authentication ID, and a password. The latter two appear as
# $auth2 and $auth3 in the configuration and should be checked against a
# valid username and password. In a real configuration you would typically
# use $auth2 as a lookup key, and compare $auth3 against the result of the
# lookup, perhaps using the crypteq{}{} condition.

#PLAIN:
#  driver                     = plaintext
#  server_set_id              = $auth2
#  server_prompts             = :
#  server_condition           = Authentication is not yet configured
#  server_advertise_condition = ${if def:tls_cipher }

# LOGIN authentication has traditional prompts and responses. There is no
# authorization ID in this mechanism, so unlike PLAIN the username and
# password are $auth1 and $auth2. Apart from that you can use the same
# server_condition setting for both authenticators.

#LOGIN:
#  driver                     = plaintext
#  server_set_id              = $auth1
#  server_prompts             = <| Username: | Password:
#  server_condition           = Authentication is not yet configured
#  server_advertise_condition = ${if def:tls_cipher }


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

[-- Attachment #4: Type: text/plain, Size: 218 bytes --]

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RE: exim-4.76-1 fails to remove lock from spooler on delivery

[Pierre A. Humblet]

> -----Original Message-----
> From: cygwin-owner On Behalf Of Zdzislaw Meglicki
> Sent: Tuesday, October 25, 2011 17:30 PM
> 
> I have a problem with exim-4.76-1 on my Cygwin installation under Windows
> 7. On having received a message addressed to a local user, exim creates
the
> lock file in the /var/spool/mail directory and ... freezes. The message
shows
> up in mailq as "frozen". I have to remove the lock file manually, then run
> exim -M on the message ID for its final delivery into the user file.

Is that 100% reproducible on your system? 
Is there an entry in an exim log, normally in /var/log/exim/ ?
I couldn't reproduce the problem on XP.

Pierre


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RE: exim-4.76-1 fails to remove lock from spooler on delivery

[Pierre A. Humblet]

> -----Original Message-----
> From: Zdzislaw Meglicki 
> Sent: Wednesday, October 26, 2011 13:43 PM
> 
> Hello Pierre,
> 
> We are getting somewhere. First, the system went down, because it was
> patching itself and needed to reboot. Normal for Windows.
> 
> I'm now sitting in front of the machine. I have stopped exim and cleaned
all
> logs in /var/log/exim. Then restarted it. Then I e-mailed a message from
> perth.ovpit.indiana.edu to gusta at yanchep.ovpit.indiana.edu to reproduce
> the problem and inspected he logs.
> 
> Here's what I find:
> 
> 1. In the /var/spool/mail directory, the message has been written on the
> destination file "gustav".
> 2. The lock file, /var/spool/mail/gustav.lock, which wasn't there
originally, is
> there now and remains unremoved.
> 3. There is an entry in /var/log/exim/exim_panic.log that looks as
follows:
> 
> root@yanchep $ cat exim_panic.log
> 2011-10-26 13:33:46 LTOOS9-0002MK-LW failed to read delivery status for
> gustav@yanchep.ovpit.indiana.edu from delivery subprocess
> 2011-10-26 13:33:46 LTOOS9-0002MK-LW appendfile transport process
> returned non-zero status 0x0001: terminated by signal 1 root@yanchep $

I was able to replicate the problem on Windows 7:
The delivery process crashes because it can't load winmm.dll

16:06:33  3572 writing data block fd=6 size=1 timeout=0
      6 [main] exim 3572 C:\Program Files\cygwin\bin\exim-4.76-1.exe: ***
fatal error - unable to load C:\Windows\system32\winmm.dll, Win32 error 1114
16:06:33  5620 LOG: MAIN PANIC
16:06:33  5620   failed to read delivery status for phumblet@phumblet-lap01w
from delivery subprocess

So it's a Cygwin issue... I think it has been discussed before but I am not
sure if there is a solution.

Pierre


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Re: exim-4.76-1 fails to remove lock from spooler on delivery

[Zdzislaw Meglicki]

I wonder why this should be a problem. The file does exist on my system and it 
should be readable and executable to groups root and  SYSTEM:

$ cd /cygdrive/c/Windows/system32
$ ls -l winmm.dll
-rwxrwx---+ 2 ???????? ???????? 194048 Nov 20  2010 winmm.dll
$ getfacl winmm.dll
# file: winmm.dll
# owner: ????????
# group: ????????
user::rwx
group::rwx
group:root:r-x
group:SYSTEM:r-x
group:Users:r-x
mask:rwx
other:---
$ 

Perhaps I should add explicit ACLs for users SYSTEM and cyg_server?

Cheers,
Gustav

Zdzislaw (Gustav) Meglicki
Indiana University
________________________________

Pierre:

I was able to replicate the problem on Windows 7:
The delivery process crashes because it can't load winmm.dll

16:06:33  3572 writing data block fd=6 size=1 timeout=0
      6 [main] exim 3572 C:\Program Files\cygwin\bin\exim-4.76-1.exe: ***
fatal error - unable to load C:\Windows\system32\winmm.dll, Win32 error 1114
16:06:33  5620 LOG: MAIN PANIC
16:06:33  5620  failed to read delivery status for phumblet@phumblet-lap01w
from delivery subprocess

So it's a Cygwin issue... I think it has been discussed before but I am not
sure if there is a solution.

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Re: exim-4.76-1 fails to remove lock from spooler on delivery

[Corinna Vinschen]

On Oct 26 16:33, Pierre A. Humblet wrote:
> > -----Original Message-----
> > From: Zdzislaw Meglicki 
> > Sent: Wednesday, October 26, 2011 13:43 PM
> > 
> > Hello Pierre,
> > 
> > We are getting somewhere. First, the system went down, because it was
> > patching itself and needed to reboot. Normal for Windows.
> > 
> > I'm now sitting in front of the machine. I have stopped exim and cleaned
> all
> > logs in /var/log/exim. Then restarted it. Then I e-mailed a message from
> > perth.ovpit.indiana.edu to gusta at yanchep.ovpit.indiana.edu to reproduce
> > the problem and inspected he logs.
> > 
> > Here's what I find:
> > 
> > 1. In the /var/spool/mail directory, the message has been written on the
> > destination file "gustav".
> > 2. The lock file, /var/spool/mail/gustav.lock, which wasn't there
> originally, is
> > there now and remains unremoved.
> > 3. There is an entry in /var/log/exim/exim_panic.log that looks as
> follows:
> > 
> > root@yanchep $ cat exim_panic.log
> > 2011-10-26 13:33:46 LTOOS9-0002MK-LW failed to read delivery status for
> > gustav@yanchep.ovpit.indiana.edu from delivery subprocess
> > 2011-10-26 13:33:46 LTOOS9-0002MK-LW appendfile transport process
> > returned non-zero status 0x0001: terminated by signal 1 root@yanchep $
> 
> I was able to replicate the problem on Windows 7:
> The delivery process crashes because it can't load winmm.dll
> 
> 16:06:33  3572 writing data block fd=6 size=1 timeout=0
>       6 [main] exim 3572 C:\Program Files\cygwin\bin\exim-4.76-1.exe: ***
> fatal error - unable to load C:\Windows\system32\winmm.dll, Win32 error 1114
> 16:06:33  5620 LOG: MAIN PANIC
> 16:06:33  5620   failed to read delivery status for phumblet@phumblet-lap01w
> from delivery subprocess
> 
> So it's a Cygwin issue... I think it has been discussed before but I am not
> sure if there is a solution.

Cygwin from CVS doesn't use winmm anymore, unless you need access to
the audio I/O.  Try the latest developer snapshot from
http://cygwin.com/snapshots/


Corinna

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Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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RE: exim-4.76-1 fails to remove lock from spooler on delivery

[Pierre A. Humblet]

> -----Original Message-----
> From: cygwin-owner on behalf Of Corinna Vinschen
> Sent: Thursday, October 27, 2011 3:47 AM
> 
> On Oct 26 16:33, Pierre A. Humblet wrote:
<snip>
> > I was able to replicate the problem on Windows 7:
> > The delivery process crashes because it can't load winmm.dll
> >
<snip>
> >
> > So it's a Cygwin issue... I think it has been discussed before but I
> > am not sure if there is a solution.
> 
> Cygwin from CVS doesn't use winmm anymore, unless you need access to
> the audio I/O.  Try the latest developer snapshot from
> http://cygwin.com/snapshots/

Thanks. I believe that is likely to fix issues with cron as well.

Pierre  


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Re: exim-4.76-1 fails to remove lock from spooler on delivery

[Zdzislaw Meglicki]

I've just done it and... it works without the problem flagged earlier. But when 
I send a message to the (exim) server from another machine, the problem 
returns...

Gustav



----- Original Message ----
[... snip...]
Does that happen also when you type from a bash window on the server:

exim gustav
< a blank line>
Hello
<control-D>
If it does it would be easier to debug.

Pierre

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Re: exim-4.76-1 fails to remove lock from spooler on delivery

[Zdzislaw Meglicki]

Hello Pierre,

I'm now sitting in front of the machine. I have stopped exim and cleaned all 
logs in /var/log/exim. Then restarted it. Then I e-mailed a message from 
another machine to gustav at yanchep to reproduce the 
problem and inspected he logs.

Here's what I find:

1. In the /var/spool/mail directory, the message has been written on the 
destination file "gustav".
2. The lock file, /var/spool/mail/gustav.lock, which wasn't there originally, is 

there now and remains unremoved.
3. There is an entry in /var/log/exim/exim_panic.log that looks as follows:

root $ cat exim_panic.log
2011-10-26 13:33:46 LTOOS9-0002MK-LW failed to read delivery status for 
gustav at yanchep from delivery subprocess
2011-10-26 13:33:46 LTOOS9-0002MK-LW appendfile transport process returned 
non-zero status 0x0001: terminated by signal 1
root $ 

4. The same message is repeated on cygrunsrv_err.log
5. The message on /var/log/exim/exim_main.log looks as follows:

root $ cat exim_main.log
2011-10-26 13:32:24 exim 4.76 daemon started: pid=5624, -q15m, listening for 
SMTP on port 25 (IPv6 and IPv4)
2011-10-26 13:32:24 Start queue run: pid=2424
2011-10-26 13:32:24 End queue run: pid=2424
2011-10-26 13:33:45 LTOOS9-0002MK-LW <= gustav at perth
H=perth [ip-number]  P=esmtp S=689 
id=20111026173338.05167164087 at perth
2011-10-26 13:33:46 LTOOS9-0002MK-LW failed to read delivery status for 
gustav at yanchep from delivery subprocess
2011-10-26 13:33:46 LTOOS9-0002MK-LW appendfile transport process returned 
non-zero status 0x0001: terminated by signal 1
2011-10-26 13:33:46 LTOOS9-0002MK-LW == gustav at yanchep
R=localuser T=local_delivery defer (-1)
2011-10-26 13:33:46 LTOOS9-0002MK-LW Frozen
root $ 

Do I need to enable something or run an auxiliary service?

Cheers
Zdzislaw Meglicki

P.S. I edited the logs to remove the full e-mail addresses.

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