qpsmtpd/Changes

  async: Dereference the DATA deny message before sending it to the client

  Change async/require_resolvable_fromhost to match the logic of
  the non-async version and other MTAs

  async: Handle End-of-data marker split across packets

  Allow plugins to use the post-fork hook

  Add qpsmtpd-prefork to the install targets (Robin Bowes)

0.43 - February 5, 2008

  (This release was mostly done by Matt Sergeant and Hanno Hecker)

  Allow qpsmtpd-async to detatch (Chris Lewis).

  plugins/tls: work-around for failed connections in -prefork after
  STARTTLS connection (Stefan Priebe, Hanno Hecker)

  Make the cleanup socket location parameter in the postfix plugin work 
  (ulr...@topfen.net)

  Implement config caching properly (for async).

  Hook/plugin caching

  Remove the connection / transaction id feature (never released)

  Option to clamdscan to scan all messages, even if there are no attachments

  add new clamd_user parameter that sets the user we pass to clamd

  async: Support for HUPing the server to clear the cache. Wake-one child support.

  async: Don't listen for readiness in the parent any more - breaks
  under high load.

  Made user() and host() setters as well as getters in
  Qpsmtpd::Address.  Suggested by mpelzer@gmail.com.

  Pluggable "help", based on patch by Jose Luis Martinez.
 
  Updated plugin documentation.


0.42 - October 1, 2007 - Never released
  
  Pluggable hook "noop"

  Pluggable hook "help" (based on patch by Jose Luis Martinez)

  async: better config caching (of flat files, not results from hook_config
  or .cdb files), send SIGHUP to clear cache

  New docs/plugins.pod documentation!

  Add X-Spam-Level header in spamassassin plugin (idea from Werner Fleck)

  prefork: support two or more parallel running instances (on different
  ports; the first 4 digits of the port number must be different for each
  instance - see IPC::Sharable).

  prefork: Fix sporadic bug showing itself after millions of
  connections (S. Priebe)

  Remove the auth/authnull sample plugin (there are plenty proper examples now
  so we don't have to include this insecure plugin)

  POD syntax cleanup (Steve Kemp)

  Fix Qpsmtpd::Plugins::isa_plugin() with multiple plugin dirs (Gavin Carr)

  Fix false positives in check_for_hi_virus plugin (Jerry D. Hedden)

  Make connection->local_ip available from the Apache transport (Peter Eisch)

  Support checking for early talkers at DATA

  Make the documented DENY{,SOFT}_DISCONNECT work in the data-post hook

  Allow buffered writes in Postfix plugin (from Joe Schaefer)

  Cleanup spamassassin plugin code a little

  Fix bug which breaks queue plugins that implement continuations

  Fix false positives in check_for_hi_virus plugin (Jerry D. Hedden)

  Unrecognized command fix (issue #16)

  Updated documentation (Apache 2.2, more)

  Add uribl plugin (Devin Carraway)

0.40 - June 11, 2007

  Add async server - uses epoll/kqueue/poll where available. (Matt Sergeant)

  Add preforking qpsmtp server (Lars Roland)

  Support SMTPS (John Peacock)
  
  Support "module" plugins ("My::Plugin" in the config/plugins file)

  Added IPv6 support. (Mike Williams)

  Added tests for the rcpt_ok plugin (Guy Hulbert, issue #4)

  Fix logging when dropping a mail due to size (m. allan noah /
  kitno455, issue #13)
  
  Don't drop privileges in forkserver if we don't have to.

  greylisting: fix db_dir configuration option so it actually works
  (kitno455, issue #6)

  Correct header parsing of "space only" lines (Joerg Meyer, issue #11)

  Update the sample configuration to use zen.spamhaus.org

  Make the badmailfrom plugin support (optional) rejection messages after the 
  rejection pattern (Robin Hugh Johnson)

  The ill-named $transaction->body_size() is depreceated now, use 
  $transaction->data_size() instead. Check your logs for LOGWARN messages 
  about "body_size" and fix your plugins. (Hanno Hecker)
  
  Support pluggable Received headers (Matt Sergeant)
  
  RFC3848 support for ESMTP. (Nick Leverton)

  Updated the list of DNSBLs in the default config
  
  Instead of failing with cryptic message, ignore lines in config/plugins
  for uninstalled plugins. (John Peacock)
  
  Clean up some of the logging (hjp)
  
  Patch to prefork code to make it run (Leonardo Helman). Add --pretty
  option to qpsmtpd-prefork to change $0 for child processes (John Peacock).

  Add support for multiple plugin directories, whose paths are given by the
  'plugin_dirs' configuration.  (Devin Carraway, Nick Leverton)

  Greylisting DBs may now be stored in a configured location, and are
  looked for by default in /var/lib/qpsmtpd/greylisting in addition to the
  previous locations relative to the qpsmtpd binary.  (Devin Carraway)

  New Qpsmtpd::Postfix::Constants to encapsulate all of the current return
  codes from Postfix, plus script to generate it.  (Hanno Hecker)

  Add ability to specific socket for syslog (Peter Eisch)

  Do the right thing for unimplemented AUTH mechanisms (Brian Szymanski)

  relay_only plugin for smart relay host. (John Peacock)

  Enhance the spamassassin plugin to support connecting to a remote
  spamd process (Kjetil Kjernsmo). 
  
  Add domainkeys plugin (John Peacock)

  Add SSL encryption method to header to mirror other qmail/SSL patches.
  Add tls_before_auth to suppress AUTH unless TLS has already been 
  established (Robin Johnson).

  Fix "help" command when there's no "smtpgreeting" configured (the default)
  (Thanks to Thomas Ogrisegg)
  
  Move the Qpsmtpd::Auth POD to a top-level README to be more obvious.

  Add Qpsmtpd::Command to gather all parsing logic in one place (Hanno
  Hecker)
  
  Support multiline responses from plugins (Charlie Brady)
  
  Added queue_pre and queue_post hooks (John Peacock)
  
  Implement multiple host/port listening for qpsmtpd-forkserver (Devin
  Carraway)

  Fix a spurious newline at the start of messages queued via exim (Devin
  Carraway)

  Make the clamdscan plugin temporarily deny mail if if can't talk to clamd
  (Filippo Carletti)

  Improve Qpsmtpd::Transaction documentation (Fred Moyer)


0.32 - 2006/02/26

  Add logging/file plugin for simple logging to a file (Devin Carraway and
  Peter J. Holzer).

  Add logging/syslog plugin for logging via the syslog facility (Devin
  Carrway)

  Add Qpsmtpd::DSN to return extended SMTP status codes from RFC-1893 and
  patch existing plugins to use it when appropriate (Hanno Hecker).

  Add plugins/tls_cert to generate appropriately shaped self-signed certs for 
  TLS support.  Add explicit use of CA used to sign cert.  Abstract clone()ing
  of connection information when switching to TLS.  Fix the AUTH code to work
  correctly with TLS.

  Add hosts_allow plugin to support pre- and post-connection hooks as well
  as move --max-from-ip tests out of core (Hanno Hecker).

  Improve postfix-queue plugin to support the known processing flags (Hanno
  Hecker).

  Drop root privileges before loading plugins, rather than after.

  A few fixes to the clamdscan plugin (Dave Rolsky)

  Various minor fixes and improvements


0.31.1 - 2005/11/18

  Add missing files to the distribution, oops... (Thanks Budi Ang!)
  (exim plugin, tls plugin, various sample configuration files)


0.31 - 2005/11/16

  STARTTLS support (see plugins/tls)

  Added queue/exim-bsmtp plugin to spool accepted mail into an Exim
  backend via BSMTP. (Devin Carraway)

  New plugin inheritance system, see the bottom of README.plugins for
  more information

  qpsmtpd-forkserver: --listen-address may now be given more than once, to
  request listening on multiple local addresses (Devin Carraway)
  (also: no more signal problems making qpsmtpd-forkserver crash/loop
  when forking).

  qpsmtpd-forkserver: add an option for writing a PID file (pjh)

  qpsmtpd-forkserver: set auxiliary groups (this is needed for the
  postfix backend, which expects to have write permission to a fifo
  which usually belongs to group postdrop). (pjh)

  qpsmtpd-forkserver: if -d or --detach is given on the commandline,
  forkserver will detach from the controlling terminal and daemonize
  itself (Devin Carraway)

  replace some fun smtp comments with boring ones.

  example patterns for badrcptto plugin - Gordon Rowell

  Extend require_resolvable_fromhost to include a configurable list of
  "impossible" addresses to combat spammer forging.  (Hanno Hecker)

  Use qmail/control/smtpdgreeting if it exists, otherwise
  show the original qpsmtpd greeting (with version information).

  Apply slight variation on patch from Peter Holzer to allow specification of
  an explicit $QPSMTPD_CONFIG variable to specify where the config lives,
  overriding $QMAIL/control and /var/qmail/control if set.  The usual
  "last location with the file wins" rule still applies.

  Refactor Qpsmtpd::Address

  when disconncting with a temporary failure, return 421 rather than
  450 or 451. (Peter J. Holzer)

  The unrecognized_command hook now uses DENY_DISCONNECT return
  for disconnecting the user.

  If the environment variable $QPSMTPD_CONFIG is set, qpsmtpd will look
  for its config files in the directory given therein, in addition to (and
  in preference to) other locations. (Peter J. Holzer)

  Updated documentation

  Various minor cleanups


0.30 - 2005/07/05

  Add plugable logging support include sample plugin which replicates
  the existing core code.  Add OK hook.

  Add new logging plugin, logging/adaptive, which logs at different
  levels depending on whether the message was accepted/rejected. 

  (See README.logging for information about the new logging system by
  John Peacock)

  plugins/auth/auth_ldap_bind - New plugin to authenticate against an
  LDAP database. Thanks to Elliot Foster <elliotf@gratuitous.net>

  new plugin: plugins/auth/auth_flat_file - flat file auth plugin

  new plugin: plugins/auth/auth_cvm_unix_local - Only DENY if the
  credentials were accepted but incorrect (bad password?). Interfaces
  with Bruce Guenther's Credential Validation Module (CVM)

  Revamp Qpsmtpd::Constants so it is possible to retrieve the text
  representation from the numeric (for logging purposes).

  new plugin: plugins/check_badrcptto_patterns - Match bad RCPTO
  address with regex (Gordon Rowell)

  new plugin: plugins/check_norelay - Carve out holes from larger
  relay blocks (Also Gordon Rowell)

  new plugin: plugins/virus/sophie - Uses SOPHOS Antivirus via Sophie
  resident daemon.

  Store mail in memory up to a certain threshold (default 10k).

  Remove needless restriction on temp_file() to allow the spool
  directory path to include dots (as in ../)

  Fix off-by-one line numbers in warnings from plugins (thanks to
  Brian Grossman).

  Don't check the HELO host for rfc-ignorant compliance
  
  body_write patches from Brian Grossman

  Fix for corruption problem under Apache

  Update Apache::Qpsmtpd to work with the latest Apache/mod_perl 2.0
  API.  Fix various bucket issues.

  Replace $ENV{RELAYCLIENT} with $connection->relay_client in last plugin.

  Fix typo in qpsmtpd-forkserver commandline help


0.29 - 2005/03/03

  Store entire incoming message in spool file (so that scanners can read
  the complete message) and ignore old headers before adding lines and
  queuing for delivery.

  New anti-virus scanners: hbedv (Hanno Hecker), bitdefender, and clamdscan
  (John Peacock).  Update clamav plugin to directly scan the spool file.

  New temp_file() and temp_dir() methods; when used by plugins, they create
  a filename or directory which will last only as long as the current 
  transaction.  Also created a spool_dir() method which checks/creates the
  spool_dir when the application starts up.  All three methods are also
  available in the base class where the temp_* objects are not automatically
  limited to the transaction's lifetime. (John Peacock)

  Added Gavin Carr's greylisting plugin

  Renamed config/ to config.sample/

  Qpsmtpd::Auth - document $mechanism option, improve fallback to generic
  hooks, document that auth-login works now, stash auth user and method for
  later use by Qpsmtpd::SMTP to generate authentication header.
  (Michael Toren)

  Qpsmtpd::SMTP - "MAIL FROM: <#@[]>" now works like qmail (null sender), 
  add LOGIN to default auth mechanisms, display auth user and method in
  Received: line instead of X-Qpsmtpd-Auth header.
  (Michael Toren)

  check_badmailfromto - NEW PLUGIN - like check_badmailfrom except matches
  both FROM: and TO:, and effectively makes it seem like the recipient 
  no longer exists for that sender (great for harassment cases).
  (John Peacock)

  check_earlytalker and require_resolvable_fromhost - short circuit test if
  whitelistclient is set. (Michael Toren)

  check_badmailfrom - Do not say why a given message is denied.
  (Michael Toren)

  dns_whitelist_soft - NEW PLUGIN - dns-based whitelist override for
  other qpsmtpd plugins.  Add suuport for whitelisthost to dnsbl.
  (John Peacock)

  auth/auth_vpopmail_sql - Support CRAM-MD5 (requires clear_passwd)
  (John Peacock)

  plugins/queue/qmail-queue - Added a timestamp and the qmail-queue qp
  identifier to the "Queued!" message, for compatibility with qmail-smtpd
  (Michael Toren)

  Support qmail-smtpd's timeoutsmtpd config file

  Many improvements to the forking server (qpsmtpd-forkserver)

  Plugin testing framework (Matt)

  Added Apache::Qpsmtpd (Apache/mod_perl 2.0 connection handler)

  Allow for multiple instances of a single plugin by using plugin:0
  notation (Robert)

  Fix CDB support so the server can work without it

  VRFY plugin support (Robert Spier)

  Added Makefile.PL etc to make it easier to build a package (Matt).

  Added Apache::Qpsmtpd to the distro.

  Make the distro follow the CPAN module style (Makefile.PL, MANIFEST, etc)

  Make the rhsbl plugin do DNS lookups in the background. (Mark Powell)

  Fix warning in count_unrecognized_commands plugin (thanks to spaze
  and Roger Walker)

  Improve error messages from the Postfix module (Erik I. Bolsø,
  <knan at mo.himolde.no>)

  make the maildir plugin record who the message was to (with a bit of improvements 
  this could make a decent local delivery plugin)

  Pass extra "stuff" to HELO/EHLO callbacks (to make it easier to
  support SMTP extensions)

  Renamed the *HARD return codes to DENY_DISCONNECT and
  DENYSOFT_DISCONNECT (DENYSOFT_DISCONNECT is new)

  Mail::Address does RFC822 addresses, we need SMTP addresses.
  Replace Mail::Address with Peter J. Holzer's Qpsmtpd::Address module.

  Don't keep adding ip addresses to the process status line ($0) when
  running under PPerl.

  Include the date and time the session started in the process status line.

  Add "plugin/virus/uvscan" - McAfee commandline virus scanner

  Inbound connections logged as soon as the remote host address is known
  when running under tcpserver.

  Add Qpsmtpd::Auth (authentication handlers! See plugins/auth/) (John Peacock)
 
  Add a plugin hook for the DATA command

  check_earlytalker -
    + optionally react to an earlytalker by denying all MAIL-FROM commands
      rather than issuing a 4xx/5xx greeting and disconnecting. (Mark
      Powell)
    + initial "awkward silence" period now configurable (Mark Powell)
    + DENY/DENYSOFT now configurable

  Move relay flag to connection object (John Peacock):
    + add relay_client() method to Connection.pm
    + Remove $transaction->relaying() completely (due to popular demand)

  Split check_relay plugin into two plugins (John Peacock):
    + check_relay now fires on connect and sets relay_client() flag
    + rcpt_ok runs last of rcpt plugins and performs final OK/DENY
    + change default config/plugins to reflect new order

0.28 - 2004/06/05

  Don't keep adding ip addresses to the process status line ($0) when running under PPerl.

  Include the date and time the session started in the process status line.

  Added a "queue/maildir" plugin for writing incoming mails to a maildir.

  Create temp files with permissions 0600 (thanks to Robert James Kaes again)

  Fix warning in check_badrcptto plugin (Thanks to Robert James Kaes)

  Proper "Log levels" with a configuration option

  $Include feature in config/plugins


0.27.1 - 2004/03/11

  SpamAssassin plugin Outlook compatibility fix (Thanks to Gergely Risko)


0.27 - 2004/03/10

  Support for unix sockets in the spamassassin plugin (requires SA
  2.60 or higher).  Thanks to John Peacock!

  Modified the dnsbl plugin to better support both A and TXT records and 
  support all of the RBLSMTPD functionality. (Thanks to Mark Powell)

  reject bare carriage-returns in addition to the  bare line-feeds
  (based on a patch from Robert James Kaes, thanks!)

  Bugfix to the count_unrecognized_commands plugin so it works
  under PPerl (it wasn't resetting the count properly).

  reset_transaction is called after disconnect plugins are called so
  the Transaction objects DESTROY method is called. (Thanks to Robert
  James Kaes <rjkaes@flarenet.com>)

  Made the SpamAssassin plugin work with SA 2.6+ (thanks to numerous
  contributors, thanks everyone!). Note that for now it's not
  including the Spam: headers with the score explained. For that use
  the spamassassin_spamc plugin from http://projects.bluefeet.net/
  (for now).

  Added Postfix queue plugin thanks to Peter J Holzer!

  Took out the last "exit" call from the SMTP object; the "transport"
  module ("TcpServer", "SelectServer") needs to do the right thing in
  it's disconnect method.

  Update the SPF plugin (Philip Gladstone, philip@gladstonefamily.net):
   * Integrated with Mail::SPF::Query 1.991
   * Don't do SPF processing when you are acting as a relay system
   * Remove the MX changes as they are now inside Mail::SPF::Query

  Take out Data::Dumper to save a few bytes of memory

  Say Received: ... via ESMTP instead of via SMTP when the client
  speaks ESMTP.  (Hoping this can be a useful SpamAssassin rule).

  Take out the X-SMTPD header. 

  Add pod documentation and sanity checking of the config to
  check_badmailfrom

  Use $ENV{QMAIL} to override /var/qmail for where to find the
  control/ directory.

  Enable "check_earlytalker" in the default plugins config

  Added a milter plugin to allow use of sendmail milters

  Don't store the Qpsmtpd object in the Plugin object any more (this
  caused a circular reference)

  Added a new qpsmtpd-server - a select() based server for qpsmtpd

  Allow a config/relayclients and config/morerelayclients files to
  define who can relay (useful with the select() server)

  Fixed qpsmtpd unfolding all header lines

  Speed up persistent qpsmtpd's by checking for plugin functions after
  munging the name (the main breakage was with queue/qmail-queue)

  Use dup2() instead of perl open("<&") style. POSIX seems to work better.

  Added SPF, sender permitted from, plugin 

  More minor changes and probably a few big ones that we missed adding here :-)
 

0.26 - 2003/06/11

  Add queue/smtp-forward plugin (Matt Sergeant)

  Add documentation to Qpsmtpd::Transaction (Matt Sergeant)

  Fix bug in dnsbl that made it sometimes ignore "hits" (thanks to
  James H. Thompson <jht@lava.net>)

  Fix bug hiding the error message when an existing configuration file
  isn't readable.

  If a plugin running the ehlo hook add something to the ARRAY
  reference $self->transaction->notes('capabilities') then it will be
  added to the EHLO response.

  Add command_counter method to the SMTP object.  Plugins can use this
  to catch (or not) consecutive commands.  In particular useful with
  the unrecognized_command hook.

  Filter out all uncommon characters from the remote_host
  setting. (thanks to Frank Denis / Jedi/Sector One for the hint).

  Added a check for the spool_dir having mode 0700.

  Don't break under taint mode on OpenBSD. (thanks to Frank Denis /
  Jedi/Sector One)

  Have the qmail-queue plugin add the message-id to the "Queued!"
  message we send back to the client (to help those odd sendmail using
  people debug their logs)

  Set the process name to "qpsmtpd [1.2.3.4 : host.name.tld]"

  Fixed timeout bug when the client sent DATA and then stopped before
  sending the next line. (Gergely Risko <risko@risko.hu>) 

  unrecognized_command hook and a count_unrecognized_commands
  plugin. (Rasjid Wilcox)

  check_earlytalker plugin.  Deny the connection if the client talks
  before we show our SMTP banner.  (From Devin Carraway)

  Patch Qpsmtpd::SMTP to allow connect plugins to give DENY and
  DENYSOFT return codes.  Based on patch from Devin Carraway.

  Support morercpthosts.cdb

  config now takes an extra "type" parameter.  If it's "map" then a
  reference to a tied hash will be returned.


0.25 - 2003/03/18

  Use the proper RFC2822 date format in the Received headers. (Somehow
  I had convinced myself that ISO8601 dates were okay). Thanks to
  Kee Hinckley <nazgul@somewhere.com>.

  Print the date in the local timezone instead of in -0000. (Not
  entirely convinced this is a good idea)

  Lots of changes from Rasjid Wilcox <rasjidw@openminddev.net>:

  Fix error handling in queue/qmail-queue. (Rasjid)
 
  Add option to queue/qmail-queue to specify an alternate qmail-queue
  location. (Rasjid)

  Add support for the QMAILQUEUE environment variable. (Rasjid)

  PPerl compatibility (yay!)  (Rasjid)

  Allow mail to <abuse> and <postmaster> to go through. (Rasjid)

  Add "deny" hook that gets called when another hook returns DENY or
  DENYSOFT. (Rasjid)

  Add list of required modules to the README. Thanks to Skaag Argonius
  <skaag@skaag.net>.

  Fix dnsbl plugin to give us all the results. (Patch from Matt
  Sergeant <matt@sergeant.org>)

  Disable identd lookups by passing -R to tcpserver. (Thanks to Matt)

  add plugin hooks for HELO and EHLO (Devin Carraway
  <qpsmtpd-list@devin.com>)

  check_spamhelo plugin to deny mail from claimed senders from the
  list specified in F<badhelo>.  (For example aol.com or yahoo.com) 
  (Devin Carraway)


0.20 - 2002/12/09

  Fix the "too many dots in the beginning of the line" bug.

  Add munge_subject_threshold and reject_threshold options to the
  spamassassin plugin.  Add documentation to the spamassassin plugin.

  Add -p to mkdir in log/run (Rasjid Wilcox <rasjidw@openminddev.net>)

  clamav plugin, thanks to Matt Sergeant, matt@sergeant.org.
  Enabling this might require you to increase your "softlimit" in
  the run file.  http://www.clamav.org/

  Make the spamassassin plugin not stop the next content plugins from
  running.

  Store hooks runtime config globally so they will work within the
  transaction objects too.

  content_log plugin - log the content of all mails for
  debugging. Robert Spier <robert@perl.org>.

  http_config plugin - get configuration via http

  plugins can take arguments via their line in the "plugins" file

  make the quit_fortune plugin check that the fortune program exists


0.12 - 2002/10/17

  Better error messages when a plugin fails
  
  Remove some debug messages in the log 

  Fix NOOP command with perl 5.6.

  Better installation instructions and error message when no plugin
  allowed or denied relaying (thanks to Lars Rander
  <lrNOSPAM@rander.dk>).
 
  Use /usr/bin/perl instead of the non-standard /home/perl/bin/perl


0.11 - 2002/10/09

  Make a "queue" plugin hook and move the qmail-queue functionality
  to plugins/queue/qmail-queue.  This allows you to make qpsmtpd 
  delivery mail via smtp or lmtp or into a database or whatever you want.

  Reorganize most of Qpsmtpd.pm into Qpsmtpd/SMTP.pm.

  Add spool_dir option (thanks to Ross Mueller <ross@visual.com>)

  Add plugin name to the "hooks" data structure, so we can log plugin
  module had an error when we run a hook.

  Make klez filter run for mails bigger than 220KB; they are sometimes
  bigger than that.

  Avoid "use of uninitialized variable" warning when the "MAIL" or the
  "RCPT" command is executed without a parameter.

  Compatibility with perl 5.5.3.

  Fix "Could not print" error message in the TcpServer object. (Thanks
  to Ross Mueller <ross@visual.com>)

  dnsbl plugin queues lookups in the background upon connect but
  doesn't block for the results until they are needed, greatly
  speeding up connection times.  Also fix a typo in the dnsbl plugin
  so it'll actually work(!).

  check_badmailfrom and check_badrcptto plugins (Jim Winstead
  <jimw@trainedmonkey.com>)

  Better RFC conformance. (Reset transactions after the DATA command and
  when the MAIL command is being done)


0.10 - 2002/09/08

  New object oriented internals
  
  Very flexible plugin

  All functionality not core to SMTP moved to plugins

  Can accept mails as large as your file system will allow (instead of
  up to as much memory you would allow qpsmtpd to eat).

2002/09/08
  Add klez_filter plugin

  Support more return codes for data_post

  Document data_post

  Add plugin name to the log entries when plugins use log()

  Add plugin_name method to the default plugin object.

  Improve error handling in the spamassassin plugin


2002/08/06
  Spool message bodies to a tmp file so we can support HUGE messages
 
  API to read the message body (undocumented, subject to change)

  data_post hook (undocumented)

  SpamAssassin plugin (connects to spamd on localhost), see
  plugins/spamassassin


2002/07/15
  DNS RBL and RHSBL support via plugins.

  More hooks.

2002/07/03
  First (non functional) version of the new object oriented mail engine (0.10).
 

Changes on the old v0.0x branch:

2002/05/09
  Klez filter (thanks to Robert Spier)

2002/04/20
  Bumped version number to 0.07

  Support comments in configuration files (prefix the line with #)
  
  Support RELAYCLIENT like qmail-smtpd (thanks to Marius Kjeldahl
  <marius@kjeldahl.net> and Zukka Zitting <jukka.zitting@iki.fi>)

  If the connection fails while in DATA we would just accept the
  message. Ouch! Thanks to Devin Carraway <qpsmtpd@devin.com> for the
  patch.


2002/01/26
  Allow [1.2.3.4] for the hostname when checking if the dns resolves


2002/01/21
  assorted fixes; getting dnsbl's to actually work

  fixing the maximum message size (databytes) stuff (thanks for the
  spot to Andrew Pam <xanni@glasswings.com.au>)

  support and enable taint checking (thanks to Devin Carraway
  <qpsmtpd@devin.com>)

  Make the MAIL FROM host dns check configurable. (thanks to Devin
  Carraway).

  Add more documentation to the README file.