Speaking of email... I've been using Postfix exclusively now for just over 2
years. From Wietse Venema:

Postfix snapshot 20010128 will become the first non-beta release,
modulo bugfixes. As always, whatever code I release runs on my own
systems.

This version ships with a new virtual mailbox-only delivery agent,
an updated nqmgr (new queue manager) and with an updated LMTP client
that supports SASL authentication.

Primary site: ftp.porcupine.org/mirrors/postfix-release/experimental

     164701 Jan 28 21:22 snapshot-20010128.HISTORY
      40910 Jan 28 21:22 snapshot-20010128.RELEASE_NOTES
    1033120 Jan 28 21:22 snapshot-20010128.tar.gz
        152 Jan 28 21:22 snapshot-20010128.tar.gz.sig

Or point your browser at:

    ftp://ftp.porcupine.org/mirrors/postfix-release/index.html

    Wietse

Extract from RELEASE_NOTES
==========================

    Incompatible changes with snapshot-20010128
    ===========================================

    REJECT in header/body_checks is now flagged as policy violation
    rather than bounce, for consistency in postmaster notifications.

    The mailbox size limit for local delivery is no longer controlled
    by the message_size_limit paramater, but by a separate parameter
    called mailbox_size_limit (default: 20MBytes).

    The default RBL (real-time blackhole lists) domain examples have
    been updated from *.vix.com to *.mail-abuse.org.

    Major changes with snapshot-20010128
    ====================================

    Updated nqmgr (experimental queue manager with clever queueing
    strategy) by Patrik Rak. This code is still new. Once it stops
    changing (for a long time!) it will become part of the non-beta
    release.

    Virtual mailbox delivery agent by Andrew McNamara. This delivery
    agent can deliver mail for any number of domains. See the file
    VIRTUAL_README for detailed examples. This code is still new. Once
    it stops changing it will become part of the non-beta release.

    Many "valid_hostname" warnings were either eliminated, and the rest
    was replaced by something more informative.

    SASL support (RFC 2554) for the LMTP delivery agent. This is required
    by recent Cyrus implementations when delivering mail over TCP
    sockets. The LMTP_README file has been updated but still contains
    some obsolete information.

    Workarounds for non-standard RFC 2554 (AUTH command) implementations.
    Specify "broken_sasl_auth_clients = yes" to enable SMTP server
    support for old Microsoft client applications. The Postfix SMTP
    client supports non-standard RFC 2554 servers by default.

Change log since the 20001217 snapshot release
==============================================

20001218

Bugfix: the MYSQL client did not provide function pointers
for unimplemented operations, causing "postmap -d" to dump
core instead if issuing an error message. This is what I
get for accepting code that I cannot test myself.

20001221

Code cleanup: configuration parameters that are $name
expanded at run-time now have their own data type hierarchy
instead of being piggy-backed on top of strings that are
$name expanded at program initialization time. Files:
global/mail_conf.h, global/mail_conf_raw.c, and code that
calls it.

20001230

Update: replaced the default rbl.maps.vix.com setting by
the current blackholes.mail-abuse.org.

20010102

Code cleanup: the queue manager is a bit greedier with
allocating a delivery agent. Problem pointed out by Patrik
Rak. All bugs in the solution are mine. Files:
*qmgr/qmgr_active.c.

20010105

Bugfix: the FILTER_README shell script example did not
correctly pass exit status to the parent.

Bugfix: soft errors in client hostname lookups would be
treated as hard errors. Fix by Michael Herrmann
(informatik.tu-muenchen.de). File: smtpd/smtpd_peer.c.

20010110

Bugfix: the mkdir() EEXIST race condition workaround was
not complete. Matthias Andree, Daniel Roesen. Files:
global/mail_queue.c, util/make_dirs.c.

20010111

Portability: IRIX 6.5.10 defines sa_len as a macro, causing
a name collision with a variable used by Postfix. Roberto
Totaro, enigma.ethz.ch. File: smtpstone/smtp-source.c.

20010116

Bugfix: REJECT by header/body_checks was flagged in smtpd
as a bounce, should be policy, in order to make postmaster
notifications more consistent. File: smtpd/smtpd.c.

Merged updated chroot setup procedure by Matthias Andree.
Files: examples/chroot-setup/LINUX2.

20010117

Formatting: changed the seconds and days formats in the
"your mail is delayed" text so that it does not switch to
scientific notation. File: bounce/bounce_notify_util.c.

20010119

Feature: SASL support for the LMTP client. Recent CYRUS
software requires this for Postfix over TCP sockets.

20010120

Bugfix: the 20001005 revised fallback_relay support caused
Postfix to send mail to the fallback even when the local
machine was an MX host for the final destination. Result:
mailer loop. Found by Laurent Wacrenier (teaser.fr). Files:
smtp/smtp_connect.c, smtp/smtp_addr.c.

20010121

Workaround: specify "broken_sasl_auth_clients = yes" in
order to support old Microsoft clients that implement
a non-standard version of RFC 2554 (AUTH command).

Workaround: Lotus Domino 5.0.4 violates RFC 2554 and replies
to EHLO with AUTH=LOGIN. File: smtp/smtp_proto.c.

20010125

Code cleanup: wrote creator/destructor for dictionary
objects that provides default methods that trap all attempts
to perform an unimplemented operation. Based on an ansatz
by Laurent Wacrenier (teaser.fr). Files: util/dict*.[hc].

Code cleanup: INSTALL.sh does not ask questions when stdin
is not connected to a tty (as in: make install</dev/null).
To automate a customized install, the script imports
environment variables for install_root etc.

20010127

Workaround: randomize the delay between attempts to lock
a file, so that multiple bounce or defer servers are less
likely to retry all at the same time. likely. File:
util/rand_sleep.c, global/deliver_flock.c, global/dot_lockfile.c.

20010128

Code cleanup: complaints about invalid or numeric hostnames
either provide specific context or are removed as redundant.
Files: util/valid_hostname.c dns/dns_lookup.c.

Code cleanup: new mailbox_size_limit parameter (default:
20MB). Until now, the mailbox size limit was the same as
the message size limit, due to artefact of implementation.
Files: global/mail_params.h, local/local.c.

Bugfix: fix for the ldap_domains parameter, both semantics
and documentation by LaMont Jones. Files: LDAP_README,
conf/sample-ldap.cf, util/dict_ldap.c.

Update: merged in the virtual delivery agent by Andrew
McNamara. See VIRTUAL_README for detailed examples.

Update: merged a re-vamped nqmgr by Patrik Rak.

Kurt Seifried, seifriedsecurityportal.com
Securityportal - your focal point for security on the 'net

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