Log message:
Update to 4.0.5. From the changelog:

- If the idle timeout is not configured, it is now set to 20 minutes
    after qmail exits to prevent never-ending spamdyke processing.
    Thanks to Matthew Kettlewell for reporting this one.
- Fixed the AUTH advertisements to display correctly when
    "smtp-auth-level" is "always" or \ 
"always-encrypted". Thanks
    to Youri Kravatsky for reporting this one.
- Fixed a sequencing error that would cause qmail to exit prematurely,
    even if valid recipients could still possibly be given. Thanks
    to David Stiller for reporting this one.
- Fixed the handling of unencoded null characters in messages
    (technically not legal) so spamdyke does become confused and
    timeout. Thanks to Arthur Girardi for reporting this one.
- Fixed an issue in the DNS query code that was setting array indexes
    beyond the end of the array, resulting in garbage log messages
    and segmentation faults. Thanks to Arthur Girardi for reporting
    this one.
- Fixed verbose logging in the RHSBL filter to print the correct
    log message. Thanks to Arthur Girardi for reporting this one.
- Rewrote the address parser to correctly handle strange/invalid
    email addresses. Thanks to Erald Troja for reporting this one.
- Fixed a serious error in the code that loads array values from
    files that was returning pointers to unallocated memory, causing
    segmentation faults. Many, many thanks to David Stiller for
    reporting this one and providing tons of help to nail it down.
- Fixed a serious error that was attempting to move data by
    dereferencing the NULL address when the remote server disconnected
    unexpectedly, causing segmentation faults. Many, many thanks
    to David Stiller for reporting this one and providing tons of
    help to nail it down.

Log message:
Update to 4.0.4. From the changelog:

Moved the code for loading configuration files into prepare_settings() from
  do_spamdyke().  When the default value for the "log-target" option was
  being set before the configuration files were read, the syslog option
  could be incorrectly set, even if stderr was specified in a file.
  Thanks to Eric Shubert for reporting this one.
Changed the configure script to detect environments where printf()/scanf()
  use "%ld" for 64-bit integers instead of "%lld" (CentOS \ 
64-bit).  This
  wouldn't be necessary if the gcc authors could grasp the idea that
  "long int" and "long long int" may be interchangable and \ 
not emit warnings.
  Thanks to kjl for reporting this one.

Log message:
Add MESSAGE explaining how to enable spamdyke with qmail-smtpd.

Log message:
Update to 4.0.3. From the changelog:

This version fixes two bugs. The first is an integer argument
parsing bug on some systems (FreeBSD). Thanks to Shane Bywater for
reporting this one. The second is a bug parsing invalid nameserver
entries in /etc/resolv.conf that prevented spamdyke from defaulting
to 127.0.0.1. Thanks to slamp slamp for reporting this one.

Log message:
Update to 4.0.2. From the changelog:

  Fixed a bug in filter_graylist() that was creating infinitely deep \ 
"_none"
    directories.  The special-case conversion code added in 4.0.1 was not
    checking to see if "_none" was a file or a directory and performing the
    conversion every time.  Thanks to Bob Alanis for reporting this one.

Log message:
Update to 4.0.1. This version fixes several bugs:

- The automatic conversion of a graylist directory structure could
  generate errors for empty sender addresses (commonly used for
  bounce messages). Thanks to David Stiller for reporting this one.

- Connections encrypted with TLS (not decrypted by spamdyke) weren't
  always being rejected, even if there was no chance they should
  be accepted. Thanks to Sergio Minini for reporting this one.

- A double-free() problem could result in crashes if the
  "rejection-text-graylist" option was used within a configuration
  directory.

- Compiling on Solaris was generating a warning.

Log message:
Update to 4.0.0. The changelog is unwieldy; highlights:

* Several options have changed names, behaviors, defaults, and/or
  possible settings, all of which are explained in the upgrade
  instructions.

* Many new options have been added:
  config-dir
  config-dir-search
  dns-blacklist-file
  dns-level
  dns-max-retries-total
  dns-max-retries-primary
  dns-server-ip
  dns-server-ip-primary
  dns-timeout-secs
  dns-whitelist-file
  filter-level
  graylist-exception-ip-entry
  graylist-exception-rdns-entry
  graylist-level
  ip-blacklist-entry
  ip-in-rdns-keyword-blacklist-entry
  ip-in-rdns-keyword-whitelist-entry
  ip-in-rdns-keyword-whitelist-file
  ip-whitelist-entry
  local-domain-entry
  rdns-blacklist-entry
  rdns-whitelist-entry
  recipient-blacklist-entry
  recipient-whitelist-entry
  rejection-text-access-denied
  rejection-text-dns-blacklist
  rejection-text-earlytalker
  rejection-text-empty-rdns
  rejection-text-graylist
  rejection-text-ip-blacklist
  rejection-text-ip-in-cc-rdns
  rejection-text-ip-in-rdns-keyword-blacklist
  rejection-text-local-recipient
  rejection-text-max-recipients
  rejection-text-missing-sender-mx
  rejection-text-rdns-blacklist
  rejection-text-recipient-blacklist
  rejection-text-reject-all
  rejection-text-relaying-denied
  rejection-text-rhs-blacklist
  rejection-text-sender-blacklist
  rejection-text-smtp-auth-required
  rejection-text-timeout
  rejection-text-unresolvable-rdns
  relay-level
  rhs-blacklist-file
  rhs-whitelist-file
  run-as-user
  sender-blacklist-entry
  sender-whitelist-entry
  smtp-auth-level
  tls-level

* An example spamdyke.conf has been provided.

Log message:
Update to 3.1.8. From the changelog:

This version fixes a bug with the recipient filters that could allow
a clever sender to use a spamdyke-protected server as an open relay.
The sequence of commands are not legal SMTP, so the sender would
have to know the server was running a vulnerable version of spamdyke
to exploit this bug.  Thanks to Mirko Buffoni for reporting this
one.

This version also fixes two problems with the idle timeout filter.
The first could cause the connection to be rejected because qmail
is slow to respond (which isn't fair).  The second was a tricky
issue where large messages from fast remote servers could be
improperly rejected because the idle timer wasn't being reset.
Thanks to Eric Shubert for reporting and helping me fix this one.

This version also fixes two compiling problems.  The first was a
problem in the "configure" script on older Gentoo installations
running gcc 3.4.6 that was treating a preprocessor warning as an
error.  Thanks to Thorsten Puzich for reporting and helping me fix
this one.  The second was a problem with CentOS 3.8, which doesn't
install the OpenSSL headers in the system include folder.  Thanks
to Bruce Schreiber for reporting this one.

Log message:
Update to 3.1.7. From the changelog:

This version fixes a bug in the white/blacklist file processor that
was incorrectly matching domains when wildcards were used. Thanks
to Tom for reporting this one.

Log message:
Add two missing system includes to fix the build on NetBSD 4.0.