HISTORY

20141012

	Bugfix (introduced: Postfix 2.3): the PREPEND access/policy
	action added headers ABOVE Postfix's own Received: header,
	exposing Postfix's own Received: header to Milters (protocol
	violation) and hiding the PREPENDed header from Milters.
	The latter caused problems for DMARC implementations with
	SPF policy plus DKIM Milter.  PREPENDed headers are now
	added BELOW Postfix's own Received: header and remain visible
	to Milters. File: smtpd/smtpd.c.

20141018

	Bugfix (introduced: Postfix 2.3): when a Milter inserted a
	header ABOVE Postfix's own Received: header, Postfix would
	expose its own Received: header to Milters (violating
	protocol) and hide the Milter-inserted header from Milters
	(wtf).  Files: cleanup/cleanup.h, cleanup/cleanup_message.c,
	cleanup/cleanup_state.c, milter/milter.[hc], milter/milter8.c.

	Cleanup: revert the workaround that places headers inserted
	with PREPEND actions or policy requests BELOW Postfix's own
	Received: message header. File: smtpd/smtpd.c.

20150106

	Robustness: don't segfault due to excessive recursion after
	a faulty configuration runs into the virtual_alias_recursion_limit.
	File: global/tok822_tree.c.

20150115

	Safety: stop aliasing loops that exponentially increase the
	address length with each iteration. Back-ported from Postfix
	3.0. File: cleanup/cleanup_map1n.c.