В Debian Lenny поставил к exim 4.69 greylist. Сделал все по инструкции - демон вроде работает - заполняет списки, статистику отдает, но exim принимает все письма сразу без отправки первого сообщения "Try later" Такое ощущение что правила greylist'а не правильно размещены в конфиге exim. Перепробовал разные варианты, но в чем грабли так и не понял. Помогите, пожалуйста разобраться.
### acl/30_exim4-config_check_rcpt
#################################
# 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:
# greylistd(8) configuration follows.
# This statement has been added by "greylistd-setup-exim4",
# and can be removed by running "greylistd-setup-exim4 remove".
# Any changes you make here will then be lost.
#.
# Perform greylisting on incoming messages from remote hosts.
# We do NOT greylist messages with no envelope sender, because that
# would conflict with remote hosts doing callback verifications, and we
# might not be able to send mail to such hosts for a while (until the
# callback attempt is no longer greylisted, and then some).
#
# We also check the local whitelist to avoid greylisting mail from
# hosts that are expected to forward mail here (such as backup MX hosts,
# list servers, etc).
#
# Because the recipient address has not yet been verified, we do so
# now and skip this statement for non-existing recipients. This is
# in order to allow for a 550 (reject) response below. If the delivery
# happens over a remote transport (such as "smtp"), recipient callout
# verification is performed, with the original sender intact.
#
defer
message = $sender_host_address is not yet authorized to deliver \
mail from <$sender_address> to <$local_part@$domain>. \
Please try later.
log_message = greylisted.
!senders = :
!hosts = : +relay_from_hosts : \
${if exists {/etc/greylistd/whitelist-hosts}\
{/etc/greylistd/whitelist-hosts}{}} : \
${if exists {/var/lib/greylistd/whitelist-hosts}\
{/var/lib/greylistd/whitelist-hosts}{}}
!authenticated = *
!acl = acl_local_deny_exceptions
domains = +local_domains : +relay_to_domains
verify = recipient/callout=20s,use_sender,defer_ok
condition = ${readsocket{/var/run/greylistd/socket}\
{--grey \
$sender_host_address \
$sender_address \
$local_part@$domain}\
{5s}{}{false}}
# Deny if blacklisted by greylist
deny
message = $sender_host_address is blacklisted from delivering \
mail from <$sender_address> to <$local_part@$domain>.
log_message = blacklisted.
!senders = :
!authenticated = *
verify = recipient/callout=20s,use_sender,defer_ok
condition = ${readsocket{/var/run/greylistd/socket}\
{--black \
$sender_host_address \
$sender_address \
$local_part@$domain}\
{5s}{}{false}}
# Accept if the source is local SMTP (i.e. not over TCP/IP). We do this by
# testing for an empty sending host field.
accept
hosts = :
# The following section of the ACL is concerned with local parts that contain
# certain non-alphanumeric characters. Dots in unusual places are
# handled by this ACL as well.
#
# Non-alphanumeric 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 disallow certain non-alphanumeric characters, 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
# a name without a 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.
#
# These ACL components will block recipient addresses that are valid
# from an RFC2822 point of view. We chose to have them blocked by
# default for security reasons.
#
# If you feel that your site should have less strict recipient
# checking, please feel free to change the default values of the macros
# defined in main/01_exim4-config_listmacrosdefs or override them from a
# local configuration file.
#.
# Two different rules are used. The first one has a quite strict
# default, and is applied to messages that are addressed to one of the
# local domains handled by this host.
# The default value of CHECK_RCPT_LOCAL_LOCALPARTS is defined in
# main/01_exim4-config_listmacrosdefs:
# CHECK_RCPT_LOCAL_LOCALPARTS = ^[.] : ^.*[@%!/|`#&?]
# This blocks local parts that begin with a dot or contain a quite
# broad range of non-alphanumeric characters.
.ifdef CHECK_RCPT_LOCAL_LOCALPARTS
deny
domains = +local_domains
local_parts = CHECK_RCPT_LOCAL_LOCALPARTS
message = restricted characters in address
.endif
# The second rule applies to all other domains, and its default is
# considerably less strict.
..
# The default value of CHECK_RCPT_REMOTE_LOCALPARTS is defined in
# main/01_exim4-config_listmacrosdefs:
# CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!`#&?] : ^.*/\\.\\./
# It allows local 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 some other non-alphanumeric characters is blocked.
# Single quotes might probably be dangerous as well, but they're
# allowed by the default regexps to avoid rejecting mails to Ireland.
# The motivation here is to prevent local users (or local users' malware)
# from mounting certain kinds of attack on remote sites.
.ifdef CHECK_RCPT_REMOTE_LOCALPARTS
deny
domains = !+local_domains
local_parts = CHECK_RCPT_REMOTE_LOCALPARTS
message = restricted characters in address
.endif
# Accept mail to postmaster in any local domain, regardless of the source,
# and without verifying the sender.
#
accept
.ifndef CHECK_RCPT_POSTMASTER
local_parts = postmaster
.else
local_parts = CHECK_RCPT_POSTMASTER
.endif
domains = +local_domains : +relay_to_domains
# Deny unless the sender address can be verified.
#
# This is disabled by default so that DNSless systems don't break. If
# your system can do DNS lookups without delay or cost, you might want
# to enable this feature.
#
# This feature does not work in smarthost and satellite setups as
# with these setups all domains pass verification. See spec.txt chapter
# 39.31 with the added information that a smarthost/satellite setup
# routes all non-local e-mail to the smarthost.
.ifdef CHECK_RCPT_VERIFY_SENDER
deny
message = Sender verification failed
!acl = acl_local_deny_exceptions
!verify = sender
.endif
# Verify senders listed in local_sender_callout with a callout.
#
# In smarthost and satellite setups, this causes the callout to be
# done to the smarthost. Verification will thus only be reliable if the
# smarthost does reject illegal addresses in the SMTP dialog.
deny
!acl = acl_local_deny_exceptions
senders = ${if exists{CONFDIR/local_sender_callout}\
{CONFDIR/local_sender_callout}\
{}}
!verify = sender/callout
# 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 black
# list, it is a mistake.
accept
hosts = +relay_from_hosts
control = submission/sender_retain
# 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/sender_retain
# 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 #DS comment
# 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.
require
verify = recipient
# Verify recipients listed in local_rcpt_callout with a callout.
# This is especially handy for forwarding MX hosts (secondary MX or
# mail hubs) of domains that receive a lot of spam to non-existent
# addresses. The only way to check local parts for remote relay
# domains is to use a callout (add /callout), but please read the
# documentation about callouts before doing this.
deny
!acl = acl_local_deny_exceptions
recipients = ${if exists{CONFDIR/local_rcpt_callout}\
{CONFDIR/local_rcpt_callout}\
{}}
!verify = recipient/callout
# CONFDIR/local_sender_blacklist holds a list of envelope senders that
# should have their access denied to the local host. Incoming messages
# with one of these senders are rejected at RCPT time.
#
# The explicit white lists are honored as well as negative items in
# the black list. See exim4-config_files(5) for details.
deny
message = sender envelope address $sender_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster
!acl = acl_local_deny_exceptions
senders = ${if exists{CONFDIR/local_sender_blacklist}\
{CONFDIR/local_sender_blacklist}\
{}}
# deny bad sites (IP address)
# CONFDIR/local_host_blacklist holds a list of host names, IP addresses
# and networks (CIDR notation) that should have their access denied to
# The local host. Messages coming in from a listed host will have all
# RCPT statements rejected.
#
# The explicit white lists are honored as well as negative items in
# the black list. See exim4-config_files(5) for details.
deny
message = sender IP address $sender_host_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster
!acl = acl_local_deny_exceptions
hosts = ${if exists{CONFDIR/local_host_blacklist}\
{CONFDIR/local_host_blacklist}\
{}}
# Warn if the sender host does not have valid reverse DNS.
#.
# If your system can do DNS lookups without delay or cost, you might want
# to enable this.
# If sender_host_address is defined, it's a remote call. If
# sender_host_name is not defined, then reverse lookup failed. Use
# this instead of !verify = reverse_host_lookup to catch deferrals
# as well as outright failures.
.ifdef CHECK_RCPT_REVERSE_DNS
warn
message = X-Host-Lookup-Failed: Reverse DNS lookup failed for $sender_host_address (${if eq{$host_lookup_failed}{1}{failed}{deferred}})
condition = ${if and{{def:sender_host_address}{!def:sender_host_name}}\
{yes}{no}}
.endif
# Use spfquery to perform a pair of SPF checks (for details, see
# http://www.openspf.org/)
#
# This is quite costly in terms of DNS lookups (~6 lookups per mail). Do not
# enable if that's an issue. Also note that if you enable this, you must
# install "libmail-spf-query-perl" which provides the spfquery command.
# Missing libmail-spf-query-perl will trigger the "Unexpected error in
# SPF check" warning.
.ifdef CHECK_RCPT_SPF
deny
message = [SPF] $sender_host_address is not allowed to send mail from ${if def:sender_address_domain {$sender_address_domain}{$sender_helo_name}}. \
Please see http://www.openspf.org/Why?scope=${if def:sender_address_domain {mfrom}{helo}};identity=${if def:sender_address_domain {$sender_address}{$sender_helo_name}};ip=$sender_host_ad
log_message = SPF check failed.
!acl = acl_local_deny_exceptions
condition = ${run{/usr/bin/spfquery --ip \"$sender_host_address\" --mail-from \"$sender_address\" --helo \"$sender_helo_name\"}\
{no}{${if eq {$runrc}{1}{yes}{no}}}}
defer
message = Temporary DNS error while checking SPF record. Try again later.
condition = ${if eq {$runrc}{5}{yes}{no}}
warn
message = Received-SPF: ${if eq {$runrc}{0}{pass}{${if eq {$runrc}{2}{softfail}\
{${if eq {$runrc}{3}{neutral}{${if eq {$runrc}{4}{unknown}{${if eq {$runrc}{6}{none}{error}}}}}}}}}}
condition = ${if <={$runrc}{6}{yes}{no}}
warn
log_message = Unexpected error in SPF check.
condition = ${if >{$runrc}{6}{yes}{no}}
# Support for best-guess (see http://www.openspf.org/developers-guide.html)
warn
message = X-SPF-Guess: ${run{/usr/bin/spfquery --ip \"$sender_host_address\" --mail-from \"$sender_address\" \ --helo \"$sender_helo_name\" --guess true}\
{pass}{${if eq {$runrc}{2}{softfail}{${if eq {$runrc}{3}{neutral}{${if eq {$runrc}{4}{unknown}\
{${if eq {$runrc}{6}{none}{error}}}}}}}}}}
condition = ${if <={$runrc}{6}{yes}{no}}
defer
message = Temporary DNS error while checking SPF record. Try again later.
condition = ${if eq {$runrc}{5}{yes}{no}}
.endif
# Check against classic DNS "black" lists (DNSBLs) which list
# sender IP addresses
.ifdef CHECK_RCPT_IP_DNSBLS
warn
message = X-Warning: $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
log_message = $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
dnslists = CHECK_RCPT_IP_DNSBLS
.endif
# Check against DNSBLs which list sender domains, with an option to locally
# whitelist certain domains that might be blacklisted.
#
# Note: If you define CHECK_RCPT_DOMAIN_DNSBLS, you must append
# "/$sender_address_domain" after each domain. For example:
# CHECK_RCPT_DOMAIN_DNSBLS = rhsbl.foo.org/$sender_address_domain \
# : rhsbl.bar.org/$sender_address_domain
.ifdef CHECK_RCPT_DOMAIN_DNSBLS
warn
message = X-Warning: $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
log_message = $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
!senders = ${if exists{CONFDIR/local_domain_dnsbl_whitelist}\
{CONFDIR/local_domain_dnsbl_whitelist}\
{}}
dnslists = CHECK_RCPT_DOMAIN_DNSBLS
.endif
# This hook allows you to hook in your own ACLs without having to
# modify this file. If you do it like we suggest, you'll end up with
# a small performance penalty since there is an additional file being
# accessed. This doesn't happen if you leave the macro unset.
.ifdef CHECK_RCPT_LOCAL_ACL_FILE
.include CHECK_RCPT_LOCAL_ACL_FILE
.endif
#############################################################################
# This check is commented out because it is recognized that not every
# sysadmin will want to do it. If you enable it, the check performs
# Client SMTP Authorization (csa) checks on the sending host. These checks
# do DNS lookups for SRV records. The CSA proposal is currently (May 2005)
# an Internet draft. You can, of course, add additional conditions to this
# ACL statement to restrict the CSA checks to certain hosts only.
#
# require verify = csa
#############################################################################
# Accept if the address is in a domain for which we are an incoming relay,
# but again, only if the recipient can be verified.
accept
domains = +relay_to_domains
endpass
verify = recipient
#DS
accept domains = +relay_to_domains
local_parts = CONFDIR/routeable_$domain
endpass
message = unrouteable address
verify = recipient
accept
domains = lsearch;CONFDIR/relay_routes
local_parts = CONFDIR/routeable_$domain
require
message = relay not permitted
domains = +local_domains : +relay_to_domains
#DS End
# At this point, the address has passed all the checks that have been
# configured, so we accept it unconditionally.
accept
