postfwd/doc/CHANGELOG

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ATTENTION: requirements changed - as dns queries are now performed asynchronously, postfwd from
v1.10pre2 and above needs the perl module Net::DNS::Async! it is available via CPAN
and installed for my tests without any problems on different linux and solaris systems
NOTE: please see the docs ('postfwd -m' or 'perldoc postfwd') for more information
**************************************************************************************************
1.10pre7c
==========
- note: 1.10pre7c does not contain any code-changes to the postfwd daemon.
this release only fixes some issues when buidling packages.
- bugfix: set permissions of manpage dirs to 755
- bugfix: manpage has gone to section 8
- bugfix: postfwd-rblcheck.pl has gone to the tools folder
- bugfix: documentation now refers to request.sample
1.10pre7b
==========
- bugfix: inter-section links in documentation did not work correctly
(thanks to Alexander 'Leo' Bergolth)
1.10pre7a
==========
- bugfix: implemented workaround for possible crash of Sys::Syslog when syslog
daemon is unavailable (thanks to Henrik Krohns)
- bugfix: changed syslog socktype on solaris
1.10pre7
=========
- feature: $$request_score may now be used to access a request's score
- feature: auto-deactivation of non-responding dnsbls; please see the
new --cleanup-timeouts and --dns_timeout_max options
- feature: the set command allows some basic operations:
=========================================================
action=set(ITEM+=VALUE) adds VALUE to ITEM
action=set(ITEM-=VALUE) substracts VALUE from ITEM
action=set(ITEM*=VALUE) multiplies ITEM by VALUE
action=set(ITEM/=VALUE) divides ITEM through VALUE
action=set(ITEM.=VALUE) concatenates ITEM and VALUE
action=set(ITEM==VALUE) sets ITEM to VALUE
action=set(ITEM=VALUE) default: sets ITEM to VALUE
=========================================================
- bugfix: fixed wrong timestamp for timed out rbls
- code: score() command now allows integer values
- code: setting an empty score removes it from the table
- code: duplicate lookups within the same rule are now recognised
1.10pre6
=========
- feature: the new rate() and size() commands offer some basic rate limit controls
- feature: new cleanup options: --cleanup-rates
- feature: regexps may now be included in // characters
- feature: an empty sender address is now replaced by <>
- bugfix: some csv-separated itemlists did not work correctly since v1.10pre1
- bugfix: fixed a possible race condition with request cache when config was reloaded via HUP signal
1.10pre5a
=========
- bugfix: fixed a possible race condition in rbl_read_dns() function
1.10pre5
========
- feature: new dnsbl lookup types: rhsbl_client, rhsbl_sender, rhsbl_reverse_client
- feature: new caching option --cacheid allows to increase performance and cache efficiency
- code: cleanups will only be logged if '-v' was set or if the process took at least 1 second
1.10pre4
========
- feature: new date items 'days=Sun-Sat' and 'months=Jan-Dec'
- feature: all date/time items may now be csv-separated lists
- feature: the set command can now have multiple, csv-separated arguments
- feature: enhanced use of rblcount and rhsblcount (see doc)
- feature: new caching options --cache-no-sender,--cache-rbl-timeout and --cache-rbl-default
- feature: new cleanup options: --cleanup-requests and --cleanup-rbls
- code: cache cleanups are now performed on interval basis (not per request)
which should decrease load on busy systems.
- code: warning on multiple definitions of id, action, rblcount and rhsblcount is issued
- bugfix: date items may now contain whitespaces (e.g. days = Fri - Sat)
1.10pre3
========
- feature: all hits for a rule are now logged in the final message
- feature: option --shortlog disables logging for some postfwd actions
- feature: introduced set() command, which enables setting of variables, which then can be
compared to the ruleset to gain performance on repeated item lists (see doc).
- feature: introduced new command-line switches --dns_queuesize, --dns_retries and dns_retries
to influence the behaviour of DNS lookups
- code: restructured code (~+15% speed compared to v1.03, with nodns ruleset)
1.10pre2
========
- feature: DNS lookups are now parallelized per rule. this increases the performance of dnsbl
items (and any other future dns based check) significantly. implementation (per rule):
1.) send dns queries, 2.) process other non-dns items, 3.) evaluate dns results
As a downside of this approach the parser does not wait for dns queries anymore, which
could result in increased load. you might use the sleep() command to get some delay ;-)
1.10pre1
========
- feature: the way how request items are compared to the ruleset can now be influenced.
===============================================================
ITEM==VALUE true if ITEM equals VALUE
ITEM>=VALUE true if ITEM >= VALUE
ITEM<=VALUE true if ITEM <= VALUE
ITEM~=VALUE true if ITEM ~= /^VALUE$/i
ITEM=VALUE old default behaviour
===============================================================
- feature: the score() command now allows some basic arithmetic operations (+-*/=)
e.g. action=score(*2) will double the current score
- feature: you can now refer to request attributes in actions, which will e.g. allow the following:
id=R001; rbl=zen.spamhaus.org; \
action=554 5.7.1 see http://www.spamhaus.org/query/bl?ip=$$client_address
- feature: introduced extra request attributes sender_localpart, sender_domain,
recipient_localpart, recipient_domain and version for use like:
id=test01; client_name ~= $$(sender_domain)$; action=score(-0.5)
- bugfix: the "=" character could not be used in items
- bugfix: negation of items (!!) did not work correctly under some circumstances
- bugfix: time was logged incorrectly during request cache cleanups in verbose mode
(thanks to Henrik Krohns)
- code: restructured some parts of the code for future enhancement options. a plugin interface
was prepared and will be included in the final version. perl's -w switch is used now.
- note: the documentation has not been fully updated yet.
1.03
====
- feature: request attributes can now be compared (e.g. to compare client_name and helo_name)
- feature: rule items can now be negated (e.g. to compare if client_name does not match helo_name)
- feature: extra verbose mode '-vv' now displays much more debug information
- feature: -L switch to redirect log output to stdout
- feature: new manual section about the parser, other updates
- bugfix: caching did not work at end_of_data level because of different queue ids, corrected
- bugfix: all numeric items will now match if the request attribute exceeds the corresponding
rule item. the negation operator will lead to the opposite effect:
=============================================================================
ITEM=VALUE TYPE
=============================================================================
rblcount=2 matches if rbl hits >= 2
recipient_count=10 matches if recipients >= 10
size=12345 matches if size >= 12345
encryption_keysize=256 matches if keysize >= 256
encryption_keysize=!!256 matches if keysize < 256
=============================================================================
1.02
====
- bugfix: rblcount and rhsblcount did not work correctly since V1.01, corrected
1.01
====
- feature: multiple rbl, rhsbl and client_address statements in a single rule are now possible
- feature: note() command will now log (not warn!). an empty argument suppresses logging
- feature: in verbose mode you must set -vv now to see the whole request attributes
- feature: cached dnsbl results are now only logged in verbose mode
- manual: several minor updates
1.00
====
- feature: multiple definitions of the same item in a single rule to build groups
- feature: rules can span multiple lines by specifying a trailing "\" character
- feature: syslog_name can now be set with -l|--logname <label>
- bugfix: fixed bug in acl parser (no "}" character could be used in ACLs)
0.99p
=====
- bugfix: size and rcpt_count were checked as minimum values
now they are correctly interpreted as maximum.
0.99o
=====
- feature: date and time based rules
- feature: macros (please see doc)
- feature: slightly changed statistics output
0.99n
=====
- first public beta version