HISTORY

	proto/SMTPD_POLICY_README.html.

20070501

	Safety: when IPv6 (or IPv4) is turned off, don't treat an
	IPv6 (or IPv4) connection from e.g. inetd as if it comes
	from localhost[127.0.0.1]. Files: smtpd/smtpd_peer.c,
	qmqpd/qmqpd_peer.c.

20070508

	Bugfix: Content-Transfer-Encoding: attribute values are
	case insensitive. File: src/cleanup/cleanup_message.c.

20070514

	Bugfix: mailbox_transport(_maps) and fallback_transport(_maps)
	were broken when used with the error(8) or discard(8)
	transports. Cause: insufficient documentation.  Files:
	error/error.c, discard/discard.c.

20070520

	Bugfix (problem introduced Postfix 2.3): when DSN support
	was introduced it broke "agressive" recipient duplicate
	elimination with "enable_original_recipient = no".  File:
	cleanup/cleanup_out_recipient.c.

20070529

	Bugfix (introduced Postfix 2.3): the sendmail/postdrop
	commands would hang when trying to submit a message larger
	than the per-message size limit. File: postdrop/postdrop.c.

20070530

	Sabotage the saboteur who insists on breaking Postfix by
	adding gethostbyname() calls that cause maildir delivery
	to fail when the machine name is not found in /etc/hosts,
	or that cause Postfix processes to hang when the network
	is down.

20070531

	Portability: Victor helpfully pointed out that change
	20070425 broke on non-IPv6 systems. Files: smtpd/smtpd_peer.c,
	qmqpd/qmqpd_peer.c.

20070722

	Cleanup: Milter client error handling, so that the (Postfix
	SMTP server's Milter client) does not get out of sync with
	Milter applications after the (cleanup server's Milter
	client) encounters some non-recoverable problem.  Files:
	milter/milter8.c, smtpd/smtpd.c.  Back-port from Postfix
	2.4/2.5.

20070729

	Performance: workaround for poor TCP performance on loopback
	(127.0.0.1) connections. Reported by Mark Martinec.  Files:
	util/vstream_tweak.c, milter/milter8.c, smtp/smtp_connect.c,
	smtpstone/*source.c. Back-port from Postfix 2.4/2.5.

20070730

	Bugfix: when a milter replied with ACCEPT at or before the
	first RCPT command, the cleanup server would apply the
	non_smtpd_milters setting as if the message was a local
	submission. Problem reported by Jukka Salmi. Also, the
	cleanup server would get out of sync with the milter when
	a milter replied with ACCEPT at the DATA command. Files:
	cleanup/cleanup_envelope.c, smtpd/smtpd.c, milter/milters.c.
	Back-port from Postfix 2.4/2.5.

20070911

	Bugfix (introduced Postfix 2.2.11): TLS client certificate
	with unparsable canonical name caused the SMTP server's
	policy client to allocate zero-length memory, triggering
	an assertion that it shouldn't do such things.  File:
	smtpd/smtpd_check.c. Back-port from Postfix 2.4/2.5.

20070917

	Workaround: the flush daemon forces an access time update
	for the per-destination logfile, to prevent an excessive
	rate of delivery attempts when the queue file system is
	mounted with "noatime".  File: flush/flush.c. Back-port
	from Postfix 2.4/2.5.

20071030

	Bugfix (introduced Postfix 2.3): Postfix mistakenly enforced
	the 64kbyte limit (for sending body parts TO Milter
	applications) also while receiving packets FROM Milter
	applications.  The limit is now at least 1GB.  File:
	milter/milter8.c.

20071202

	Bugfix (introduced Postfix 2.2): don't update the back-to-back
	delivery time stamp while deferring mail. File: *qmgr/qmgr_entry.c.

20071211

	Bugfix (introduced 19980315): the "write" equivalent of
	bugfix 20030104. File: util/vstream.c.

20071213

	Bugfix (introduced Postfix 2.3): the SMTP client never
	marked corrupt files as corrupt. Victor Duchovni. File:
	smtp/smtp_proto.c.

20071229

	Bugfix: the Milter client did not replace the Postfix-specific
	form for unknown host names by the Sendmail-specific form.
	File: milter/milter8.c.

20080104

	Workaround: minor change to the Dovecot AUTH request to
	prevent dovecot-auth memory wastage. Timo Sirainen.  File:
	xsasl/xsasl_dovecot_server.c.

20080228

	Bugfix: bounce(8) segfault on one-line template text.
	Problem found by Sacha Chlytor. File: bounce/bounce_template.c.

20080411

	Bugfix (introduced Postfix 2.0): after "warn_if_reject
	reject_unlisted_recipient/sender", the SMTP server mistakenly
	remembered that recipient/sender validation was already
	done. File: smtpd/smtpd_check.c.

20080428

	Cleanup: the proxy_read_maps (Postfix 2.0) default setting
	was not updated when adding sender/recipient_bcc_maps
	(Postfix 2.1) and smtp/lmtp_generic_maps (Postfix 2.3).
	File: global/mail_params.h.

20080509

	Bugfix: null-terminate CN comment string after sanitization.
	File: smtpd/smtpd.c.

20080603

	Workaround: avoid "bad address pattern" errors with non-address
	patterns in namadr_list_match() calls. File: util/match_ops.c.

20080804

	Bugfix: dangling pointer in vstring_sprintf_prepend().
	File: util/vstring.c.

20080814

	Security: some systems have changed their link() semantics,
	and will hardlink a symlink, contrary to POSIX and XPG4.
	Sebastian Krahmer, SuSE. File: util/safe_open.c.

	The solution introduces the following incompatible change:
	when the target of mail delivery is a symlink, the parent
	directory of that symlink must now be writable by root only
	(in addition to the already existing requirement that the
	symlink itself is owned by root).  This change will break
	legitimate configurations that deliver mail to a symbolic
	link in a directory with less restrictive permissions.

20080908

	Bugfix: the cleanup server did not update the recipient
	count after Milter application access. Backported from
	Postfix 2.4 update 20070215. Files: cleanup_api.c,
	cleanup_extracted.c, cleanup_final.c.

20081203

	Cleanup: adjust the VSTREAM buffer strategy when reusing
	an SMTP connection with a large TCP MSS value. File:
	smtp/smtp_reuse.c.

20090419

	Bugfix: don't re-enable SIGHUP if it is ignored in the
	parent. This may cause random "Postfix integrity check
	failed" errors at boot time (POSIX SIGHUP death), causing
	Postfix not to start. We duplicate code from postdrop and
	thus avoid past mistakes.  File: postsuper/postsuper.c.

	Robustness: don't re-enable SIGTERM if it is ignored in the
	parent. Files: postsuper/postsuper.c, postdrop/postdrop.c.

20090710

	Bugfix (introduced Postfix 2.3): Postfix got out of sync
	with a Milter application after the application sent a
	"quarantine" request at end-of-message time. The milter
	application would still be in the end-of-message state,
	while Postfix would already be working on the next SMTP
	event (typically, QUIT or MAIL FROM).  Problem diagnosed
	with help from Alban Deniz. File: milter/milter8.c.

20090805

	Bugfix: don't panic when an unexpected smtpd access map is
	specified. File: smtpd/smtpd_check.c.