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Troy Dawson f32c0f9929 epel8-playground decommissioned : https://pagure.io/epel/issue/136 2022-01-31 09:40:36 -08:00
23 changed files with 1 additions and 3954 deletions

2
.gitignore vendored
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/exim-*.tar.xz
/exim-*.tar.xz.asc

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[Unit]
Description=Clamd Exim An Interface Between MTA And Content Checkers
After=network.target
[Service]
Type=forking
PIDFile=/run/clamd.exim/clamd.pid
ExecStart=/usr/sbin/clamd -c /etc/clamd.d/exim.conf
[Install]
WantedBy=multi-user.target

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dead.package Normal file
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epel8-playground decommissioned : https://pagure.io/epel/issue/136

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diff --git a/OS/Makefile-Linux b/OS/Makefile-Linux
index dfb2fa8..58c30f7 100644
--- a/OS/Makefile-Linux
+++ b/OS/Makefile-Linux
@@ -27,8 +27,8 @@ LIBRESOLV = -lresolv
X11=/usr/X11R6
XINCLUDE=-I$(X11)/include
-XLFLAGS=-L$(X11)/lib
-X11_LD_LIB=$(X11)/lib
+XLFLAGS=-L$(X11)/$(_lib)
+X11_LD_LIB=$(X11)/$(_lib)
EXIWHAT_PS_ARG=ax
EXIWHAT_EGREP_ARG='/exim( |$$)'

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@ -1,13 +0,0 @@
diff --git a/src/drtables.c b/src/drtables.c
index 513ef6c..3fa5c92 100644
--- a/src/drtables.c
+++ b/src/drtables.c
@@ -736,7 +736,7 @@ else
{
char * name = ent->d_name;
int len = (int)strlen(name);
- if (regex_match(regex_islookupmod, US name, len, NUL))
+ if (regex_match(regex_islookupmod, US name, len, NULL))
{
int pathnamelen = len + (int)strlen(LOOKUP_MODULE_DIR) + 2;
void *dl;

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@ -1,815 +0,0 @@
diff --git a/scripts/Configure-Makefile b/scripts/Configure-Makefile
index ed77b6a..b9eb64d 100755
--- a/scripts/Configure-Makefile
+++ b/scripts/Configure-Makefile
@@ -317,7 +317,7 @@ if [ "${EXIM_PERL}" != "" ] ; then
mv $mft $mftt
echo "PERL_CC=`$PERL_COMMAND -MConfig -e 'print $Config{cc}'`" >>$mft
- echo "PERL_CCOPTS=`$PERL_COMMAND -MExtUtils::Embed -e ccopts`" >>$mft
+ echo "PERL_CCOPTS=`$PERL_COMMAND -MExtUtils::Embed -e ccopts` \$(CFLAGS)" >>$mft
echo "PERL_LIBS=`$PERL_COMMAND -MExtUtils::Embed -e ldopts`" >>$mft
echo "" >>$mft
cat $mftt >> $mft
diff --git a/src/EDITME b/src/EDITME
index 53022e5..cf0b33e 100644
--- a/src/EDITME
+++ b/src/EDITME
@@ -99,7 +99,7 @@
# /usr/local/sbin. The installation script will try to create this directory,
# and any superior directories, if they do not exist.
-BIN_DIRECTORY=/usr/exim/bin
+BIN_DIRECTORY=/usr/sbin
#------------------------------------------------------------------------------
@@ -115,7 +115,7 @@ BIN_DIRECTORY=/usr/exim/bin
# don't exist. It will also install a default runtime configuration if this
# file does not exist.
-CONFIGURE_FILE=/usr/exim/configure
+CONFIGURE_FILE=/etc/exim/exim.conf
# It is possible to specify a colon-separated list of files for CONFIGURE_FILE.
# In this case, Exim will use the first of them that exists when it is run.
@@ -132,7 +132,7 @@ CONFIGURE_FILE=/usr/exim/configure
# deliveries. (Local deliveries run as various non-root users, typically as the
# owner of a local mailbox.) Specifying these values as root is not supported.
-EXIM_USER=
+EXIM_USER=93
# If you specify EXIM_USER as a name, this is looked up at build time, and the
# uid number is built into the binary. However, you can specify that this
@@ -153,7 +153,7 @@ EXIM_USER=
# for EXIM_USER (e.g. EXIM_USER=exim), you don't need to set EXIM_GROUP unless
# you want to use a group other than the default group for the given user.
-# EXIM_GROUP=
+EXIM_GROUP=93
# Many sites define a user called "exim", with an appropriate default group,
# and use
@@ -210,10 +210,10 @@ SPOOL_DIRECTORY=/var/spool/exim
# If you are building with TLS, the library configuration must be done:
# Uncomment this if you are using OpenSSL
-# USE_OPENSSL=yes
+USE_OPENSSL=yes
# Uncomment one of these settings if you are using OpenSSL; pkg-config vs not
# and an optional location.
-# USE_OPENSSL_PC=openssl
+USE_OPENSSL_PC=openssl
# TLS_LIBS=-lssl -lcrypto
# TLS_LIBS=-L/usr/local/openssl/lib -lssl -lcrypto
@@ -340,7 +340,7 @@ TRANSPORT_SMTP=yes
# This one is special-purpose, and commonly not required, so it is not
# included by default.
-# TRANSPORT_LMTP=yes
+TRANSPORT_LMTP=yes
#------------------------------------------------------------------------------
@@ -349,9 +349,9 @@ TRANSPORT_SMTP=yes
# MBX, is included only when requested. If you do not know what this is about,
# leave these settings commented out.
-# SUPPORT_MAILDIR=yes
-# SUPPORT_MAILSTORE=yes
-# SUPPORT_MBX=yes
+SUPPORT_MAILDIR=yes
+SUPPORT_MAILSTORE=yes
+SUPPORT_MBX=yes
#------------------------------------------------------------------------------
@@ -409,22 +409,28 @@ LOOKUP_DBM=yes
LOOKUP_LSEARCH=yes
LOOKUP_DNSDB=yes
-# LOOKUP_CDB=yes
-# LOOKUP_DSEARCH=yes
+LOOKUP_CDB=yes
+LOOKUP_DSEARCH=yes
# LOOKUP_IBASE=yes
# LOOKUP_JSON=yes
-# LOOKUP_LDAP=yes
+LOOKUP_LDAP=yes
+LDAP_LIB_TYPE=OPENLDAP2
+LOOKUP_LIBS=-lldap -llber -lsqlite3
# LOOKUP_LMDB=yes
-# LOOKUP_MYSQL=yes
-# LOOKUP_MYSQL_PC=mariadb
-# LOOKUP_NIS=yes
+LOOKUP_MYSQL=2
+LOOKUP_MYSQL_PC=mariadb
+LOOKUP_NIS=yes
# LOOKUP_NISPLUS=yes
+CFLAGS+=-I/usr/include/nsl -I/usr/include/tirpc
+LIBS+=-L/usr/$(_lib)/nsl
+
# LOOKUP_ORACLE=yes
-# LOOKUP_PASSWD=yes
-# LOOKUP_PGSQL=yes
+LOOKUP_PASSWD=yes
+LOOKUP_PGSQL=2
+LOOKUP_PGSQL_LIBS=-lpq
# LOOKUP_REDIS=yes
-# LOOKUP_SQLITE=yes
+LOOKUP_SQLITE=yes
# LOOKUP_SQLITE_PC=sqlite3
# LOOKUP_WHOSON=yes
@@ -437,7 +443,7 @@ LOOKUP_DNSDB=yes
# Some platforms may need this for LOOKUP_NIS:
-# LIBS += -lnsl
+LIBS += -lnsl
#------------------------------------------------------------------------------
# If you have set LOOKUP_LDAP=yes, you should set LDAP_LIB_TYPE to indicate
@@ -511,7 +517,7 @@ SUPPORT_DANE=yes
# files are defaulted in the OS/Makefile-Default file, but can be overridden in
# local OS-specific make files.
-# EXIM_MONITOR=eximon.bin
+EXIM_MONITOR=eximon.bin
#------------------------------------------------------------------------------
@@ -521,7 +527,7 @@ SUPPORT_DANE=yes
# and the MIME ACL. Please read the documentation to learn more about these
# features.
-# WITH_CONTENT_SCAN=yes
+WITH_CONTENT_SCAN=yes
# If you have content scanning you may wish to only include some of the scanner
# interfaces. Uncomment any of these lines to remove that code.
@@ -604,12 +610,12 @@ DISABLE_MAL_MKS=yes
# using libopendmarc libraries. You must have SPF and DKIM support enabled also.
# Library version libopendmarc-1.4.1-1.fc33.x86_64 (on Fedora 33) is known broken;
# 1.3.2-3 works. I seems that the OpenDMARC project broke their API.
-# SUPPORT_DMARC=yes
+SUPPORT_DMARC=yes
# CFLAGS += -I/usr/local/include
-# LDFLAGS += -lopendmarc
+LDFLAGS += -lopendmarc
# Uncomment the following if you need to change the default. You can
# override it at runtime (main config option dmarc_tld_file)
-# DMARC_TLD_FILE=/etc/exim/opendmarc.tlds
+DMARC_TLD_FILE=/usr/share/publicsuffix/public_suffix_list.dat
# Uncomment the following line to add ARC (Authenticated Received Chain)
# support. You must have SPF and DKIM support enabled also.
@@ -709,7 +715,7 @@ FIXED_NEVER_USERS=root
# CONFIGURE_OWNER setting, to specify a configuration file which is listed in
# the TRUSTED_CONFIG_LIST file, then root privileges are not dropped by Exim.
-# TRUSTED_CONFIG_LIST=/usr/exim/trusted_configs
+TRUSTED_CONFIG_LIST=/etc/exim/trusted-configs
#------------------------------------------------------------------------------
@@ -754,18 +760,18 @@ FIXED_NEVER_USERS=root
# included in the Exim binary. You will then need to set up the run time
# configuration to make use of the mechanism(s) selected.
-# AUTH_CRAM_MD5=yes
-# AUTH_CYRUS_SASL=yes
-# AUTH_DOVECOT=yes
+AUTH_CRAM_MD5=yes
+AUTH_CYRUS_SASL=yes
+AUTH_DOVECOT=yes
# AUTH_EXTERNAL=yes
-# AUTH_GSASL=yes
-# AUTH_GSASL_PC=libgsasl
+AUTH_GSASL=yes
+AUTH_GSASL_PC=libgsasl
# AUTH_HEIMDAL_GSSAPI=yes
# AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi
# AUTH_HEIMDAL_GSSAPI_PC=heimdal-gssapi heimdal-krb5
-# AUTH_PLAINTEXT=yes
-# AUTH_SPA=yes
-# AUTH_TLS=yes
+AUTH_PLAINTEXT=yes
+AUTH_SPA=yes
+AUTH_TLS=yes
# Heimdal through 1.5 required pkg-config 'heimdal-gssapi'; Heimdal 7.1
# requires multiple pkg-config files to work with Exim, so the second example
@@ -792,7 +798,7 @@ FIXED_NEVER_USERS=root
# one that is set in the headers_charset option. The default setting is
# defined by this setting:
-HEADERS_CHARSET="ISO-8859-1"
+HEADERS_CHARSET="UTF-8"
# If you are going to make use of $header_xxx expansions in your configuration
# file, or if your users are going to use them in filter files, and the normal
@@ -812,7 +818,7 @@ HEADERS_CHARSET="ISO-8859-1"
# the Sieve filter support. For those OS where iconv() is known to be installed
# as standard, the file in OS/Makefile-xxxx contains
#
-# HAVE_ICONV=yes
+HAVE_ICONV=yes
#
# If you are not using one of those systems, but have installed iconv(), you
# need to uncomment that line above. In some cases, you may find that iconv()
@@ -888,7 +894,7 @@ HEADERS_CHARSET="ISO-8859-1"
# Once you have done this, "make install" will build the info files and
# install them in the directory you have defined.
-# INFO_DIRECTORY=/usr/share/info
+INFO_DIRECTORY=/usr/share/info
#------------------------------------------------------------------------------
@@ -901,7 +907,7 @@ HEADERS_CHARSET="ISO-8859-1"
# %s. This will be replaced by one of the strings "main", "panic", or "reject"
# to form the final file names. Some installations may want something like this:
-# LOG_FILE_PATH=/var/log/exim_%slog
+LOG_FILE_PATH=/var/log/exim/%s.log
# which results in files with names /var/log/exim_mainlog, etc. The directory
# in which the log files are placed must exist; Exim does not try to create
@@ -973,7 +979,7 @@ ZCAT_COMMAND=/usr/bin/zcat
# (version 5.004 or later) installed, set EXIM_PERL to perl.o. Using embedded
# Perl costs quite a lot of resources. Only do this if you really need it.
-# EXIM_PERL=perl.o
+EXIM_PERL=perl.o
#------------------------------------------------------------------------------
@@ -983,7 +989,7 @@ ZCAT_COMMAND=/usr/bin/zcat
# that the local_scan API is made available by the linker. You may also need
# to add -ldl to EXTRALIBS so that dlopen() is available to Exim.
-# EXPAND_DLFUNC=yes
+EXPAND_DLFUNC=yes
#------------------------------------------------------------------------------
@@ -993,7 +999,7 @@ ZCAT_COMMAND=/usr/bin/zcat
# support, which is intended for use in conjunction with the SMTP AUTH
# facilities, is included only when requested by the following setting:
-# SUPPORT_PAM=yes
+SUPPORT_PAM=yes
# You probably need to add -lpam to EXTRALIBS, and in some releases of
# GNU/Linux -ldl is also needed.
@@ -1005,12 +1011,12 @@ ZCAT_COMMAND=/usr/bin/zcat
# If you may want to use outbound (client-side) proxying, using Socks5,
# uncomment the line below.
-# SUPPORT_SOCKS=yes
+SUPPORT_SOCKS=yes
# If you may want to use inbound (server-side) proxying, using Proxy Protocol,
# uncomment the line below.
-# SUPPORT_PROXY=yes
+SUPPORT_PROXY=yes
#------------------------------------------------------------------------------
@@ -1034,9 +1040,9 @@ ZCAT_COMMAND=/usr/bin/zcat
# installed on your system (www.libspf2.org). Depending on where it is installed
# you may have to edit the CFLAGS and LDFLAGS lines.
-# SUPPORT_SPF=yes
+SUPPORT_SPF=yes
# CFLAGS += -I/usr/local/include
-# LDFLAGS += -lspf2
+LDFLAGS += -lspf2
#------------------------------------------------------------------------------
@@ -1101,7 +1107,7 @@ ZCAT_COMMAND=/usr/bin/zcat
# group. Once you have installed saslauthd, you should arrange for it to be
# started by root at boot time.
-# CYRUS_SASLAUTHD_SOCKET=/var/state/saslauthd/mux
+CYRUS_SASLAUTHD_SOCKET=/var/run/saslauthd/mux
#------------------------------------------------------------------------------
@@ -1115,8 +1121,8 @@ ZCAT_COMMAND=/usr/bin/zcat
# library for TCP wrappers, so you probably need something like this:
#
# USE_TCP_WRAPPERS=yes
-# CFLAGS=-O -I/usr/local/include
-# EXTRALIBS_EXIM=-L/usr/local/lib -lwrap
+CFLAGS+=$(RPM_OPT_FLAGS) $(PIE)
+EXTRALIBS_EXIM=-lpam -ldl -export-dynamic -rdynamic
#
# but of course there may need to be other things in CFLAGS and EXTRALIBS_EXIM
# as well.
@@ -1168,7 +1174,7 @@ SYSTEM_ALIASES_FILE=/etc/aliases
# is "yes", as well as supporting line editing, a history of input lines in the
# current run is maintained.
-# USE_READLINE=yes
+USE_READLINE=yes
# You may need to add -ldl to EXTRALIBS when you set USE_READLINE=yes.
# Note that this option adds to the size of the Exim binary, because the
@@ -1185,7 +1191,7 @@ SYSTEM_ALIASES_FILE=/etc/aliases
#------------------------------------------------------------------------------
# Uncomment this setting to include IPv6 support.
-# HAVE_IPV6=yes
+HAVE_IPV6=yes
###############################################################################
# THINGS YOU ALMOST NEVER NEED TO MENTION #
@@ -1206,13 +1212,13 @@ SYSTEM_ALIASES_FILE=/etc/aliases
# haven't got Perl, Exim will still build and run; you just won't be able to
# use those utilities.
-# CHOWN_COMMAND=/usr/bin/chown
-# CHGRP_COMMAND=/usr/bin/chgrp
-# CHMOD_COMMAND=/usr/bin/chmod
-# MV_COMMAND=/bin/mv
-# RM_COMMAND=/bin/rm
-# TOUCH_COMMAND=/usr/bin/touch
-# PERL_COMMAND=/usr/bin/perl
+CHOWN_COMMAND=/usr/bin/chown
+CHGRP_COMMAND=/usr/bin/chgrp
+CHMOD_COMMAND=/usr/bin/chmod
+MV_COMMAND=/usr/bin/mv
+RM_COMMAND=/usr/bin/rm
+TOUCH_COMMAND=/usr/bin/touch
+PERL_COMMAND=/usr/bin/perl
#------------------------------------------------------------------------------
@@ -1414,7 +1420,7 @@ EXIM_TMPDIR="/tmp"
# (process id) to a file so that it can easily be identified. The path of the
# file can be specified here. Some installations may want something like this:
-# PID_FILE_PATH=/var/lock/exim.pid
+PID_FILE_PATH=/var/run/exim.pid
# If PID_FILE_PATH is not defined, Exim writes a file in its spool directory
# using the name "exim-daemon.pid".
diff --git a/src/configure.default b/src/configure.default
index 3761daf..a5d3718 100644
--- a/src/configure.default
+++ b/src/configure.default
@@ -67,7 +67,7 @@
# +local_domains, +relay_to_domains, and +relay_from_hosts, respectively. They
# are all colon-separated lists:
-domainlist local_domains = @
+domainlist local_domains = @ : localhost : localhost.localdomain
domainlist relay_to_domains =
hostlist relay_from_hosts = localhost
# (We rely upon hostname resolution working for localhost, because the default
@@ -119,11 +119,13 @@ hostlist relay_from_hosts = localhost
# 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_mail = acl_check_mail
acl_smtp_rcpt = acl_check_rcpt
.ifdef _HAVE_PRDR
acl_smtp_data_prdr = acl_check_prdr
.endif
acl_smtp_data = acl_check_data
+acl_smtp_mime = acl_check_mime
# You should not change those settings until you understand how ACLs work.
@@ -136,7 +138,7 @@ acl_smtp_data = acl_check_data
# 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
+av_scanner = clamd:/var/run/clamd.exim/clamd.sock
# For spam scanning, there is a similar option that defines the interface to
@@ -147,6 +149,12 @@ acl_smtp_data = acl_check_data
# spamd_address = 127.0.0.1 783
+# Set the default sqlite database file for greylisting. Uncomment this
+# if you use the greylisting ACLs defined below.
+
+# sqlite_dbfile = /var/spool/exim/db/greylist.db
+
+
# If Exim is compiled with support for TLS, you may want to change the
# following option so that Exim disallows certain clients from makeing encrypted
# connections. The default is to allow all.
@@ -157,7 +165,7 @@ acl_smtp_data = acl_check_data
# This is equivalent to the default.
-# tls_advertise_hosts = *
+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
@@ -165,8 +173,8 @@ acl_smtp_data = acl_check_data
# 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
+tls_certificate = /etc/pki/tls/certs/exim.pem
+tls_privatekey = /etc/pki/tls/private/exim.pem
# For OpenSSL, prefer EC- over RSA-authenticated ciphers
.ifdef _HAVE_OPENSSL
@@ -189,8 +197,8 @@ tls_resumption_hosts = ${if inlist {$received_port}{587:465} {:}{*}}
# 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
+daemon_smtp_ports = 25 : 465 : 587
+tls_on_connect_ports = 465
# Specify the domain you want to be added to all unqualified addresses
@@ -248,6 +256,24 @@ never_users = root
host_lookup = *
+# This setting, if uncommented, allows users to authenticate using
+# their system passwords against saslauthd if they connect over a
+# secure connection. If you have network logins such as NIS or
+# Kerberos rather than only local users, then you possibly also want
+# to configure /etc/sysconfig/saslauthd to use the 'pam' mechanism
+# too. Once a user is authenticated, the acl_check_rcpt ACL then
+# allows them to relay through the system.
+#
+# auth_advertise_hosts = ${if eq {$tls_cipher}{}{}{*}}
+#
+# By default, we set this option to allow SMTP AUTH from nowhere
+# (Exim's default would be to allow it from anywhere, even on an
+# unencrypted connection).
+#
+# Comment this one out if you uncomment the above. Did you make sure
+# saslauthd is actually running first?
+#
+auth_advertise_hosts =
# The setting below causes Exim to try to initialize the system resolver
# library with DNSSEC support. It has no effect if your library lacks
@@ -378,8 +404,8 @@ timeout_frozen_after = 7d
# Note that TZ is handled separately by the timezone runtime option
# and TIMEZONE_DEFAULT buildtime option.
-# keep_environment = ^LDAP
-# add_environment = PATH=/usr/bin::/bin
+keep_environment = ^LDAP
+add_environment = PATH=/usr/bin::/bin
@@ -390,6 +416,29 @@ timeout_frozen_after = 7d
begin acl
+
+# This access control list is used for the MAIL command in an incoming
+# SMTP message.
+
+acl_check_mail:
+
+ # Hosts are required to say HELO (or EHLO) before sending mail.
+ # So don't allow them to use the MAIL command if they haven't
+ # done so.
+
+ deny condition = ${if eq{$sender_helo_name}{} {1}}
+ message = Nice boys say HELO first
+
+ # Use the lack of reverse DNS to trigger greylisting. Some people
+ # even reject for it but that would be a little excessive.
+
+ warn condition = ${if eq{$sender_host_name}{} {1}}
+ set acl_m_greylistreasons = Host $sender_host_address lacks reverse DNS\n$acl_m_greylistreasons
+
+ accept
+
+
+
# 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.
@@ -401,6 +450,7 @@ acl_check_rcpt:
accept hosts = :
control = dkim_disable_verify
+ control = dmarc_disable_verify
#############################################################################
# The following section of the ACL is concerned with local parts that contain
@@ -454,7 +504,8 @@ acl_check_rcpt:
accept local_parts = postmaster
domains = +local_domains
- # Deny unless the sender address can be verified.
+ # Deny unless the sender address can be routed. For proper verification of the
+ # address, read the documentation on callouts and add the /callout modifier.
require verify = sender
@@ -494,6 +545,7 @@ acl_check_rcpt:
accept hosts = +relay_from_hosts
control = submission
control = dkim_disable_verify
+ control = dmarc_disable_verify
# Accept if the message arrived over an authenticated connection, from
# any host. Again, these messages are usually from MUAs, so recipient
@@ -503,6 +555,7 @@ acl_check_rcpt:
accept authenticated = *
control = submission
control = dkim_disable_verify
+ control = dmarc_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
@@ -523,7 +576,8 @@ acl_check_rcpt:
# 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.
+ # point. The first one denies, whereas the second just warns. The third
+ # triggers greylisting for any host in the blacklist.
#
# deny dnslists = black.list.example
# message = rejected because $sender_host_address is in a black list at $dnslist_domain\n$dnslist_text
@@ -531,6 +585,10 @@ acl_check_rcpt:
# 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
+ #
+ # warn dnslists = black.list.example
+ # set acl_m_greylistreasons = Host found in $dnslist_domain\n$acl_m_greylistreasons
+ #
#############################################################################
#############################################################################
@@ -557,6 +615,10 @@ acl_check_rcpt:
# set acl_m_content_filter = ${lookup PER_RCPT_CONTENT_FILTER}
#############################################################################
+ # Alternatively, greylist for it:
+ # warn !verify = csa
+ # set acl_m_greylistreasons = Host failed CSA check\n$acl_m_greylistreasons
+
# At this point, the address has passed all the checks that have been
# configured, so we accept it unconditionally.
@@ -606,21 +668,32 @@ acl_check_data:
message = header syntax
log_message = header syntax ($acl_verify_message)
+ # Put simple tests first. A good one is to check for the presence of a
+ # Message-Id: header, which RFC2822 says SHOULD be present. Some broken
+ # or misconfigured mailer software occasionally omits this from genuine
+ # messages too, though -- although it's not hard for the offender to fix
+ # after they receive a bounce because of it.
+ #
+ # deny condition = ${if !def:h_Message-ID: {1}}
+ # message = RFC2822 says that all mail SHOULD have a Message-ID header.\n\
+ # Most messages without it are spam, so your mail has been rejected.
+ #
+ # Alternatively if we're feeling more lenient we could just use it to
+ # trigger greylisting instead:
+
+ warn condition = ${if !def:h_Message-ID: {1}}
+ set acl_m_greylistreasons = Message lacks Message-Id: header. Consult RFC2822.\n$acl_m_greylistreasons
+
# 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.
+ # Bypass SpamAssassin checks if the message is too large.
#
- # 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 condition = ${if >={$message_size}{100000} {1}}
+ # add_header = X-Spam-Note: SpamAssassin run bypassed due to message size
#############################################################################
# No more tests if PRDR was actively used.
@@ -634,11 +707,63 @@ acl_check_data:
# condition = ...
#############################################################################
+ # Run SpamAssassin, but allow for it to fail or time out. Add a warning message
+ # and accept the mail if that happens. Add an X-Spam-Flag: header if the SA
+ # score exceeds the SA system threshold.
+ #
+ # warn spam = nobody/defer_ok
+ # add_header = X-Spam-Flag: YES
+ #
+ # accept condition = ${if !def:spam_score_int {1}}
+ # add_header = X-Spam-Note: SpamAssassin invocation failed
+ #
+
+ # Unconditionally add score and report headers
+ #
+ # warn add_header = X-Spam-Score: $spam_score ($spam_bar)\n\
+ # X-Spam-Report: $spam_report
+
+ # And reject if the SpamAssassin score is greater than ten
+ #
+ # deny condition = ${if >{$spam_score_int}{100} {1}}
+ # message = Your message scored $spam_score SpamAssassin point. Report follows:\n\
+ # $spam_report
+
+ # Trigger greylisting (if enabled) if the SpamAssassin score is greater than 0.5
+ #
+ # warn condition = ${if >{$spam_score_int}{5} {1}}
+ # set acl_m_greylistreasons = Message has $spam_score SpamAssassin points\n$acl_m_greylistreasons
+
- # Accept the message.
+ # If you want to greylist _all_ mail rather than only mail which looks like there
+ # might be something wrong with it, then you can do this...
+ #
+ # warn set acl_m_greylistreasons = We greylist all mail\n$acl_m_greylistreasons
+
+ # Now, invoke the greylisting. For this you need to have installed the exim-greylist
+ # package which contains this subroutine, and you need to uncomment the bit below
+ # which includes it too. Whenever the $acl_m_greylistreasons variable is non-empty,
+ # greylisting will kick in and will defer the mail to check if the sender is a
+ # proper mail which which retries, or whether it's a zombie. For more details, see
+ # the exim-greylist.conf.inc file itself.
+ #
+ # require acl = greylist_mail
accept
+# To enable the greylisting, also uncomment this line:
+# .include /etc/exim/exim-greylist.conf.inc
+
+acl_check_mime:
+
+ # 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}}
+
+ accept
######################################################################
@@ -740,7 +865,7 @@ system_aliases:
driver = redirect
allow_fail
allow_defer
- data = ${lookup{$local_part}lsearch{SYSTEM_ALIASES_FILE}}
+ data = ${lookup{$local_part}lsearch{/etc/aliases}}
# user = exim
file_transport = address_file
pipe_transport = address_pipe
@@ -778,7 +903,7 @@ userforward:
# local_part_suffix = +* : -*
# local_part_suffix_optional
file = $home/.forward
-# allow_filter
+ allow_filter
no_verify
no_expn
check_ancestor
@@ -786,6 +911,12 @@ userforward:
pipe_transport = address_pipe
reply_transport = address_reply
+procmail:
+ driver = accept
+ check_local_user
+ require_files = ${local_part}:+${home}/.procmailrc:/usr/bin/procmail
+ transport = procmail
+ no_verify
# This router matches local user mailboxes. If the router fails, the error
# message is "Unknown user".
@@ -826,6 +957,25 @@ remote_smtp:
tls_resumption_hosts = *
.endif
+# This transport is used for delivering messages over SMTP using the
+# "message submission" port (RFC4409).
+
+remote_msa:
+ driver = smtp
+ port = 587
+ hosts_require_auth = *
+
+
+# This transport invokes procmail to deliver mail
+procmail:
+ driver = pipe
+ command = "/usr/bin/procmail -d $local_part"
+ return_path_add
+ delivery_date_add
+ envelope_to_add
+ user = $local_part
+ initgroups
+ return_output
# This transport is used for delivering messages to a smarthost, if the
# smarthost router is enabled. This starts from the same basis as
@@ -880,8 +1030,8 @@ local_delivery:
delivery_date_add
envelope_to_add
return_path_add
-# group = mail
-# mode = 0660
+ group = mail
+ mode = 0660
# This transport is used for handling pipe deliveries generated by alias or
@@ -914,6 +1064,16 @@ address_reply:
driver = autoreply
+# This transport is used to deliver local mail to cyrus IMAP server via UNIX
+# socket. You'll need to configure the 'localuser' router above to use it.
+#
+#lmtp_delivery:
+# home_directory = /var/spool/imap
+# driver = lmtp
+# command = "/usr/lib/cyrus-imapd/deliver -l"
+# batch_max = 20
+# user = cyrus
+
######################################################################
# RETRY CONFIGURATION #
@@ -954,6 +1114,21 @@ begin rewrite
# AUTHENTICATION CONFIGURATION #
######################################################################
+begin authenticators
+
+# This authenticator supports CRAM-MD5 username/password authentication
+# with Exim acting as a _client_, as it might when sending its outgoing
+# mail to a smarthost rather than directly to the final recipient.
+# Replace SMTPAUTH_USERNAME and SMTPAUTH_PASSWORD as appropriate.
+
+#client_auth:
+# driver = cram_md5
+# public_name = CRAM-MD5
+# client_name = SMTPAUTH_USERNAME
+# client_secret = SMTPAUTH_PASSWORD
+
+#
+
# 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.
@@ -969,7 +1144,7 @@ begin rewrite
# 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
@@ -983,7 +1158,7 @@ begin authenticators
# driver = plaintext
# server_set_id = $auth2
# server_prompts = :
-# server_condition = Authentication is not yet configured
+# server_condition = ${if saslauthd{{$2}{$3}{smtp}} {1}}
# server_advertise_condition = ${if def:tls_in_cipher }
# LOGIN authentication has traditional prompts and responses. There is no
@@ -995,7 +1170,7 @@ begin authenticators
# driver = plaintext
# server_set_id = $auth1
# server_prompts = <| Username: | Password:
-# server_condition = Authentication is not yet configured
+# server_condition = ${if saslauthd{{$1}{$2}{smtp}} {1}}
# server_advertise_condition = ${if def:tls_in_cipher }

View File

@ -1,269 +0,0 @@
diff --git a/src/EDITME b/src/EDITME
index cf0b33e..7d4cbf3 100644
--- a/src/EDITME
+++ b/src/EDITME
@@ -878,6 +878,21 @@ HAVE_ICONV=yes
# *** WARNING *** WARNING *** WARNING *** WARNING *** WARNING ***
+#------------------------------------------------------------------------------
+# On systems which support dynamic loading of shared libraries, Exim can
+# load a local_scan function specified in its config file instead of having
+# to be recompiled with the desired local_scan function. For a full
+# description of the API to this function, see the Exim specification.
+
+DLOPEN_LOCAL_SCAN=yes
+HAVE_LOCAL_SCAN=yes
+
+# If you set DLOPEN_LOCAL_SCAN, then you need to include -rdynamic in the
+# linker flags. Without it, the loaded .so won't be able to access any
+# functions from exim.
+
+LFLAGS=-rdynamic -ldl -pie
+
#------------------------------------------------------------------------------
# The default distribution of Exim contains only the plain text form of the
# documentation. Other forms are available separately. If you want to install
diff --git a/src/config.h.defaults b/src/config.h.defaults
index 25ab755..e27a51d 100644
--- a/src/config.h.defaults
+++ b/src/config.h.defaults
@@ -33,6 +33,8 @@ Do not put spaces between # and the 'define'.
#define AUTH_VARS 4
+#define DLOPEN_LOCAL_SCAN
+
#define BIN_DIRECTORY
#define CONFIGURE_FILE
diff --git a/src/globals.c b/src/globals.c
index ff246fe..b9dfbbb 100644
--- a/src/globals.c
+++ b/src/globals.c
@@ -151,6 +151,10 @@ time_t tls_watch_trigger_time = (time_t)0;
uschar *tls_advertise_hosts = NULL;
#endif
+#ifdef DLOPEN_LOCAL_SCAN
+uschar *local_scan_path = NULL;
+#endif
+
#ifndef DISABLE_PRDR
/* Per Recipient Data Response variables */
BOOL prdr_enable = FALSE;
diff --git a/src/globals.h b/src/globals.h
index fe099e4..7530a76 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -148,6 +148,11 @@ extern uschar *tls_verify_hosts; /* Mandatory client verification */
extern int tls_watch_fd; /* for inotify of creds files */
extern time_t tls_watch_trigger_time; /* non-0: triggered */
#endif
+
+#ifdef DLOPEN_LOCAL_SCAN
+extern uschar *local_scan_path; /* Path to local_scan() library */
+#endif
+
extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
extern uschar *dsn_envid; /* DSN envid string */
diff --git a/src/local_scan.c b/src/local_scan.c
index 7a3bae7..6ea5d2d 100644
--- a/src/local_scan.c
+++ b/src/local_scan.c
@@ -6,59 +6,133 @@
/* Copyright (c) The Exim Maintainers 2021 */
/* See the file NOTICE for conditions of use and distribution. */
+#include <local_scan.h>
-/******************************************************************************
-This file contains a template local_scan() function that just returns ACCEPT.
-If you want to implement your own version, you should copy this file to, say
-Local/local_scan.c, and edit the copy. To use your version instead of the
-default, you must set
+#ifdef DLOPEN_LOCAL_SCAN
+extern uschar *local_scan_path; /* Path to local_scan() library */
+#endif
-HAVE_LOCAL_SCAN=yes
-LOCAL_SCAN_SOURCE=Local/local_scan.c
-
-in your Local/Makefile. This makes it easy to copy your version for use with
-subsequent Exim releases.
-
-For a full description of the API to this function, see the Exim specification.
-******************************************************************************/
-
-
-/* This is the only Exim header that you should include. The effect of
-including any other Exim header is not defined, and may change from release to
-release. Use only the documented interface! */
-
-#include "local_scan.h"
-
-
-/* This is a "do-nothing" version of a local_scan() function. The arguments
-are:
-
- fd The file descriptor of the open -D file, which contains the
- body of the message. The file is open for reading and
- writing, but modifying it is dangerous and not recommended.
-
- return_text A pointer to an unsigned char* variable which you can set in
- order to return a text string. It is initialized to NULL.
-
-The return values of this function are:
-
- LOCAL_SCAN_ACCEPT
- The message is to be accepted. The return_text argument is
- saved in $local_scan_data.
-
- LOCAL_SCAN_REJECT
- The message is to be rejected. The returned text is used
- in the rejection message.
-
- LOCAL_SCAN_TEMPREJECT
- This specifies a temporary rejection. The returned text
- is used in the rejection message.
-*/
+#ifdef DLOPEN_LOCAL_SCAN
+#include <dlfcn.h>
+static int (*local_scan_fn)(int fd, uschar **return_text) = NULL;
+static int load_local_scan_library(void);
+#endif
int
local_scan(int fd, uschar **return_text)
{
-return LOCAL_SCAN_ACCEPT;
+#ifdef DLOPEN_LOCAL_SCAN
+/* local_scan_path is defined AND not the empty string */
+if (local_scan_path && *local_scan_path)
+ {
+ if (!local_scan_fn)
+ {
+ if (!load_local_scan_library())
+ {
+ char *base_msg , *error_msg , *final_msg ;
+ int final_length = -1 ;
+
+ base_msg=US"Local configuration error - local_scan() library failure\n";
+ error_msg = dlerror() ;
+
+ final_length = strlen(base_msg) + strlen(error_msg) + 1 ;
+ final_msg = (char*)malloc( final_length*sizeof(char) ) ;
+ *final_msg = '\0' ;
+
+ strcat( final_msg , base_msg ) ;
+ strcat( final_msg , error_msg ) ;
+
+ *return_text = final_msg ;
+ return LOCAL_SCAN_TEMPREJECT;
+ }
+ }
+ return local_scan_fn(fd, return_text);
+ }
+else
+#endif
+ return LOCAL_SCAN_ACCEPT;
+ }
+
+#ifdef DLOPEN_LOCAL_SCAN
+
+static int load_local_scan_library(void)
+{
+/* No point in keeping local_scan_lib since we'll never dlclose() anyway */
+void *local_scan_lib = NULL;
+int (*local_scan_version_fn)(void);
+int vers_maj;
+int vers_min;
+
+local_scan_lib = dlopen(local_scan_path, RTLD_NOW);
+if (!local_scan_lib)
+ {
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library open failed - "
+ "message temporarily rejected");
+ return FALSE;
+ }
+
+local_scan_version_fn = dlsym(local_scan_lib, "local_scan_version_major");
+if (!local_scan_version_fn)
+ {
+ dlclose(local_scan_lib);
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library doesn't contain "
+ "local_scan_version_major() function - message temporarily rejected");
+ return FALSE;
+ }
+
+/* The major number is increased when the ABI is changed in a non
+ backward compatible way. */
+vers_maj = local_scan_version_fn();
+
+local_scan_version_fn = dlsym(local_scan_lib, "local_scan_version_minor");
+if (!local_scan_version_fn)
+ {
+ dlclose(local_scan_lib);
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library doesn't contain "
+ "local_scan_version_minor() function - message temporarily rejected");
+ return FALSE;
+ }
+
+/* The minor number is increased each time a new feature is added (in a
+ way that doesn't break backward compatibility) -- Marc */
+vers_min = local_scan_version_fn();
+
+
+if (vers_maj != LOCAL_SCAN_ABI_VERSION_MAJOR)
+ {
+ dlclose(local_scan_lib);
+ local_scan_lib = NULL;
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() has an incompatible major"
+ "version number, you need to recompile your module for this version"
+ "of exim (The module was compiled for version %d.%d and this exim provides"
+ "ABI version %d.%d)", vers_maj, vers_min, LOCAL_SCAN_ABI_VERSION_MAJOR,
+ LOCAL_SCAN_ABI_VERSION_MINOR);
+ return FALSE;
+ }
+else if (vers_min > LOCAL_SCAN_ABI_VERSION_MINOR)
+ {
+ dlclose(local_scan_lib);
+ local_scan_lib = NULL;
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() has an incompatible minor"
+ "version number, you need to recompile your module for this version"
+ "of exim (The module was compiled for version %d.%d and this exim provides"
+ "ABI version %d.%d)", vers_maj, vers_min, LOCAL_SCAN_ABI_VERSION_MAJOR,
+ LOCAL_SCAN_ABI_VERSION_MINOR);
+ return FALSE;
+ }
+
+local_scan_fn = dlsym(local_scan_lib, "local_scan");
+if (!local_scan_fn)
+ {
+ dlclose(local_scan_lib);
+ log_write(0, LOG_MAIN|LOG_REJECT, "local_scan() library doesn't contain "
+ "local_scan() function - message temporarily rejected");
+ return FALSE;
+ }
+
+return TRUE;
}
+#endif /* DLOPEN_LOCAL_SCAN */
+
/* End of local_scan.c */
diff --git a/src/readconf.c b/src/readconf.c
index 06bc50f..6ecb0af 100644
--- a/src/readconf.c
+++ b/src/readconf.c
@@ -212,6 +212,9 @@ static optionlist optionlist_config[] = {
{ "local_from_prefix", opt_stringptr, {&local_from_prefix} },
{ "local_from_suffix", opt_stringptr, {&local_from_suffix} },
{ "local_interfaces", opt_stringptr, {&local_interfaces} },
+#ifdef DLOPEN_LOCAL_SCAN
+ { "local_scan_path", opt_stringptr, &local_scan_path },
+#endif
#ifdef HAVE_LOCAL_SCAN
{ "local_scan_timeout", opt_time, {&local_scan_timeout} },
#endif

View File

@ -1,13 +0,0 @@
diff --git a/src/dmarc.c b/src/dmarc.c
index 17bba9d..a218380 100644
--- a/src/dmarc.c
+++ b/src/dmarc.c
@@ -459,7 +459,7 @@ if (!dmarc_abort && !sender_host_authenticated)
vs == PDKIM_VERIFY_INVALID ? DMARC_POLICY_DKIM_OUTCOME_TMPFAIL :
DMARC_POLICY_DKIM_OUTCOME_NONE;
libdm_status = opendmarc_policy_store_dkim(dmarc_pctx, US sig->domain,
- dkim_result, US"");
+ sig->selector, dkim_result, US"");
DEBUG(D_receive)
debug_printf("DMARC adding DKIM sender domain = %s\n", sig->domain);
if (libdm_status != DMARC_PARSE_OKAY)

View File

@ -1,13 +0,0 @@
diff --git a/src/lookups/Makefile b/src/lookups/Makefile
index 19585bf..a0d355f 100644
--- a/src/lookups/Makefile
+++ b/src/lookups/Makefile
@@ -24,7 +24,7 @@ lookups.a: $(OBJ)
$(FE)$(CC) -c $(CFLAGS) $(INCLUDE) $*.c
.c.so:; @echo "$(CC) -shared $*.c"
- $(FE)$(CC) $(LOOKUP_$*_INCLUDE) $(LOOKUP_$*_LIBS) -DDYNLOOKUP $(CFLAGS_DYNAMIC) $(CFLAGS) $(INCLUDE) $(DLFLAGS) $*.c -o $@
+ $(FE)$(CC) $(LOOKUP_$*_INCLUDE) $(LOOKUP_$*_LIBS) -DDYNLOOKUP $(CFLAGS_DYNAMIC) $(CFLAGS) $(INCLUDE) $(DLFLAGS) $(PIC) $*.c -o $@
lf_check_file.o: $(HDRS) lf_check_file.c lf_functions.h
lf_quote.o: $(HDRS) lf_quote.c lf_functions.h

View File

@ -1 +0,0 @@
D /run/clamd.exim 0750 exim exim -

View File

@ -1,45 +0,0 @@
#!/bin/bash
. /etc/sysconfig/network
# Source exim configureation.
if [ -f /etc/sysconfig/exim ] ; then
. /etc/sysconfig/exim
fi
USER=${USER:=exim}
GROUP=${GROUP:=exim}
gen_cert() {
if [ ! -f /etc/pki/tls/certs/exim.pem ] ; then
umask 077
FQDN=`hostname`
if [ "x${FQDN}" = "x" ]; then
FQDN=localhost.localdomain
fi
echo -n $"Generating exim certificate: "
cat << EOF | openssl req -new -x509 -days 365 -nodes \
-out /etc/pki/tls/certs/exim.pem \
-keyout /etc/pki/tls/private/exim.pem &>/dev/null
--
SomeState
SomeCity
SomeOrganization
SomeOrganizationalUnit
${FQDN}
root@${FQDN}
EOF
if [ $? -eq 0 ]; then
echo success
chown $USER:$GROUP /etc/pki/tls/{private,certs}/exim.pem
chmod 600 /etc/pki/tls/{private,certs}/exim.pem
else
echo failure
fi
echo
fi
}
gen_cert
exit 0

View File

@ -1,167 +0,0 @@
#
# Exim ACL for greylisting. David Woodhouse <dwmw2@infradead.org>
#
# For full background on the logic behind greylisting and how this
# ACL works, see https://github.com/Exim/exim/wiki/SimpleGreylisting
#
# UPDATING TO EXIM 4.94+
# ======================
#
# Previous versions of this ACL specified the sqlite database filename
# in the sqlite lookup strings directly, but since Exim 4.94 is it no
# longer permitted to mix "tainted" text which comes from the message
# itself, with the filename. Thus, you now have to set
#
# sqlite_dbfile = /var/spool/exim/db/greylist.db
#
# ... in the main configuration because it can't be specified within
# the ACL in this file any more.
# USING THIS ACL
# ==============
#
# First set sqlite_dbfile in the main configuration file to point to
# the greylist sqlite database, as described above.
#
# In your main ACLs, gather reason(s) for greylisting into a variable
# named $acl_m_greylistreasons before invoking this ACL with
# 'require acl = greylist_mail'. The reasons should be separate lines
# of text, and will be reported in the SMTP rejection message as well
# as the log message. Anything "suspicious" about the email can be
# used as criteria here — being HTML, having even a few SpamAssassin
# points, even lacking SPF authorisation (which is OK for greylisting
# although you should never reject outright for an SPF "failure"
# because of the flaws in SPF).
#
# Obviously you need to .include this file too in order to be able
# to invoke this greylist_mail ACL.
# HOW IT WORKS
# ============
#
# When a suspicious mail is seen, we temporarily reject it and wait to see
# if the sender tries again. Most spam robots won't bother. Real mail hosts
# _will_ retry, and we'll accept it the second time. For hosts which are
# observed to retry, we don't bother greylisting again in the future --
# it's obviously pointless. We remember such hosts, or 'known resenders',
# by a tuple of their IP address and the name they used in HELO.
#
# We also include the time of listing for 'known resenders', just in case
# someone wants to expire them after a certain amount of time. So the
# database table for these 'known resenders' looks like this:
#
# CREATE TABLE resenders (
# host TEXT,
# helo TEXT,
# time INTEGER,
# PRIMARY KEY (host, helo) );
#
# To remember mail we've rejected, we create an 'identity' from its sender
# and recipient addresses and its Message-ID: header. We don't include the
# sending IP address in the identity, because sometimes the second and
# subsequent attempts may come from a different IP address to the original.
#
# We do record the original IP address and HELO name though, because if
# the message _is_ retried from another machine, it's the _first_ one we
# want to record as a 'known resender'; not just its backup path.
#
# Obviously we record the time too, so the main table of greylisted mail
# looks like this:
#
# CREATE TABLE greylist (
# id TEXT,
# expire INTEGER,
# host TEXT,
# helo TEXT);
#
greylist_mail:
# Firstly, accept if it was generated locally or by authenticated clients.
accept hosts = :
accept authenticated = *
# Secondly, there's _absolutely_ no point in greylisting mail from
# hosts which are known to resend their mail. Just accept it.
accept condition = ${lookup sqlite {SELECT host from resenders \
WHERE helo='${quote_sqlite:$sender_helo_name}' \
AND host='$sender_host_address';} {1}}
# Generate a hashed 'identity' for the mail, as described above.
warn set acl_m_greyident = ${hash{20}{62}{$sender_address$recipients$h_message-id:}}
# Attempt to look up this mail in the greylist database. If it's there,
# remember the expiry time for it; we need to make sure they've waited
# long enough.
warn set acl_m_greyexpiry = ${lookup sqlite {SELECT expire FROM greylist \
WHERE id='${quote_sqlite:$acl_m_greyident}';}{$value}}
# If there's absolutely nothing suspicious about the email, accept it. BUT...
accept condition = ${if eq {$acl_m_greylistreasons}{} {1}}
condition = ${if eq {$acl_m_greyexpiry}{} {1}}
# ..if this same mail was greylisted before (perhaps because it came from a
# host which *was* suspicious), then we still want to mark that original host
# as a "known resender". If we don't, then hosts which attempt to deliver from
# a dodgy Legacy IP address but then fall back to using IPv6 after greylisting
# will *never* see their Legacy IP address added to the 'known resenders' list.
accept condition = ${if eq {$acl_m_greylistreasons}{} {1}}
acl = write_known_resenders
# If the mail isn't already the database -- i.e. if the $acl_m_greyexpiry
# variable we just looked up is empty -- then try to add it now. This is
# where the 5 minute timeout is set ($tod_epoch + 300), should you wish
# to change it.
warn condition = ${if eq {$acl_m_greyexpiry}{} {1}}
set acl_m_dontcare = ${lookup sqlite {INSERT INTO greylist \
VALUES ( '$acl_m_greyident', \
'${eval10:$tod_epoch+300}', \
'$sender_host_address', \
'${quote_sqlite:$sender_helo_name}' );}}
# Be paranoid, and check if the insertion succeeded (by doing another lookup).
# Otherwise, if there's a database error we might end up deferring for ever.
defer condition = ${if eq {$acl_m_greyexpiry}{} {1}}
condition = ${lookup sqlite {SELECT expire FROM greylist \
WHERE id='${quote_sqlite:$acl_m_greyident}';} {1}}
message = Your mail was considered suspicious for the following reason(s):\n$acl_m_greylistreasons \
The mail has been greylisted for 5 minutes, after which it should be accepted. \
We apologise for the inconvenience. Your mail system should keep the mail on \
its queue and retry. When that happens, your system will be added to the list \
genuine mail systems, and mail from it should not be greylisted any more. \
In the event of problems, please contact postmaster@$qualify_domain
log_message = Greylisted <$h_message-id:> from <$sender_address> for offences: ${sg {$acl_m_greylistreasons}{\n}{,}}
# Handle the error case (which should never happen, but would be bad if it did).
# First by whining about it in the logs, so the admin can deal with it...
warn condition = ${if eq {$acl_m_greyexpiry}{} {1}}
log_message = Greylist insertion failed. Bypassing greylist.
# ... and then by just accepting the message.
accept condition = ${if eq {$acl_m_greyexpiry}{} {1}}
# OK, we've dealt with the "new" messages. Now we deal with messages which
# _were_ already in the database...
# If the message was already listed but its time hasn't yet expired, keep rejecting it
defer condition = ${if > {$acl_m_greyexpiry}{$tod_epoch}}
message = Your mail was previously greylisted and the time has not yet expired.\n\
You should wait another ${eval10:$acl_m_greyexpiry-$tod_epoch} seconds.\n\
Reason(s) for greylisting: \n$acl_m_greylistreasons
accept acl = write_known_resenders
write_known_resenders:
# The message was listed but it's been more than five minutes. Accept it now and whitelist
# the _original_ sending host by its { IP, HELO } so that we don't delay its mail again.
warn set acl_m_orighost = ${lookup sqlite {SELECT host FROM greylist \
WHERE id='${quote_sqlite:$acl_m_greyident}';}{$value}}
set acl_m_orighelo = ${lookup sqlite {SELECT helo FROM greylist \
WHERE id='${quote_sqlite:$acl_m_greyident}';}{$value}}
set acl_m_dontcare = ${lookup sqlite {INSERT INTO resenders \
VALUES ( '$acl_m_orighost', \
'${quote_sqlite:$acl_m_orighelo}', \
'$tod_epoch' ); }}
logwrite = Added host $acl_m_orighost with HELO '$acl_m_orighelo' to known resenders
accept

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@ -1,10 +0,0 @@
#!/bin/bash
SPOOLDIR=/var/spool/exim
cd $SPOOLDIR/db
for a in retry misc wait-* callout ratelimit; do
[ -r "$a" ] || continue
[ "${a%%.lockfile}" = "$a" ] || continue
/usr/sbin/exim_tidydb $SPOOLDIR $a >/dev/null
done

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@ -1,7 +0,0 @@
# daemon does not need restarting after log rotate
# so we do not prod it any more
/var/log/exim/*log {
missingok
notifempty
delaycompress
}

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@ -1,3 +0,0 @@
#%PAM-1.0
auth include password-auth
account include password-auth

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@ -1,14 +0,0 @@
[Unit]
Description=Exim Mail Transport Agent
After=network.target
Conflicts=sendmail.service postfix.service
[Service]
PrivateTmp=true
Environment=QUEUE=1h
EnvironmentFile=-/etc/sysconfig/exim
ExecStartPre=-/usr/libexec/exim-gen-cert
ExecStart=/usr/sbin/exim -bd -q${QUEUE}
[Install]
WantedBy=multi-user.target

1496
exim.spec

File diff suppressed because it is too large Load Diff

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@ -1,4 +0,0 @@
DAEMON=yes
QUEUE=1h
USER=exim
GROUP=exim

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@ -1,8 +0,0 @@
#!/bin/bash
if [ -s /var/spool/exim/db/greylist.db ]; then
sqlite3 /var/spool/exim/db/greylist.db <<EOF
.timeout 5000
DELETE FROM greylist WHERE expire < $((`date +%s` - 604800));
EOF
fi

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@ -1,13 +0,0 @@
CREATE TABLE resenders (
host TEXT,
helo TEXT,
time INTEGER,
PRIMARY KEY (host, helo)
);
CREATE TABLE greylist (
id TEXT PRIMARY KEY,
expire INTEGER,
host TEXT,
helo TEXT
);

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@ -1,2 +0,0 @@
SHA512 (exim-4.96.tar.xz) = 6b863661465a0b9897c1b71875c5196a1903cf560dd85de45b08242b9731edb2bc10eb56945d62e477e5d15cc7a8d493915bff2ca81689673a8091c66f62c89e
SHA512 (exim-4.96.tar.xz.asc) = a231c97e44a7365ac5961f2827b89d8cdf6ad94964633814f31e44d94ada9900f76664c45c2f55e378245e44739a0ef323786ca29b4093e44ce2b008eca4ad64

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@ -1,6 +0,0 @@
# This file contains a list, one per line, of the files which are permitted
# to be used as Exim configuration files with root privileges. If you want
# to be able to run Exim with the -C option, and have it re-execute itself
# for local delivery, then you'll need to add your configuration file here.
/etc/exim/exim4.conf
/etc/exim/exim.conf