ChangeLog for pflogsumm


    [Notes: Let me know if you would like to be notified as new versions
     are released.  The latest released version can always be found at
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     As of 2025-07-30 the pflogsumm project page, above, supports an Atom
     feed for update notifications.]


rel-1.1.13	20251023

    Bug Fixes

	Corrected client-info extraction which sometimes extracted the
	wrong bits from log lines. (Bug introduced in v1.1.12.)

	Restored --zero-fill option accidentally dropped in v1.1.12

    Cleanup/Maintenance

	Removed redundant parentheses from several regex capture
	assignments, improving readability without altering behavior.

	Simplified IPv4 octet parsing expression.

	Simplified reject/hold/discard capture assignment.

	Normalized unparsed deferral handling: now labeled as `(unknown
	host)` instead of a fabricated sentence.

	Strip trailing port suffixes from hostnames/IP addresses for
	cleaner aggregation.

	Improved domain normalization in all summaries for better
	host/domain aggregation.

rel-1.1.12	20250819

    *** Breaking Changes ***

	Date::Calc now Required due to date(-range) enhancements.

	UI Changes

	    Options using underscores have been restored (reversing
	    removal in v1.1.8). Their use now results in a prominent
	    "deprecated" message in the report. Support for underscores
	    will be removed after a suitable deprecation period. (N.B:
	    This was accomplished without re-introducing Bugzilla bug
            1931403.)

	    Renamed option --unprocd to --unprocd-file for better clarity.
	    (--unprocd was introduced in v1.1.11.)

	    Changed --pscrn-detail option to behave like all other
	    report-limiting options: Full detail unless this option
	    is specified to limit or suppress it.  (--pscrn-detail was
	    introduced in v1.1.11.)

    Added support for a config file via --config. Command-line arguments
    override config file for non-boolean options.

	Note: This option requires the Config::Simple Perl module.
	(Only required if --config is used.)

    Added long-form options --date-range, --extended-detail,
    --host-cnt, --quiet, and --user-cnt to facilitate more user-
    friendly configuration files. Short-form options are retained for
    command-line use.

    Added --dump-config as a configuration creation/debugging aid.

    Expanded -d/--date-range options to include today, yesterday, this/last
    week/month, and specific date and date ranges in ISO 8601/RFC 3339 format.

	N.B.: Sadly, the extended date range options come with an
	unavoidable processing performance penalty. This is because the
	only reasonable way to do it was to convert everything into
        decimal values.

    Added --dow0mon (day of week 0 is Monday) for use in conjunction with
    this/last week date ranges. (Default is Sunday.)

    Added support for log entries with RFC 5424/3164-style <PRI> fields and
    optional syslog version (e.g., "<123>1 ...").

    Reports now display a date range at the top when processing multi-day
    or multi-date logs.

    Set default output column width to 80 columns, consistent with
    documentation.

    Squashed another, hopefully the last, bug that would sometimes lead
    to inaccurate tallying of messages received.

    Belated note: --rej-add-from/--rej-add-to always include "<" and
    ">", respectively, since v1.1.7.

rel-1.1.11	20250530

    Now requires Perl v5.10.0 minimum.

    Added support for postscreen summary and detail data:

	--pscrn-stats - display postscreen summary stats

	--pscrn-detail [cnt] - emit detailed postscreen data, optionally
	  to the top [cnt] events.

    Improved host/domain/IP address normalization. Now normalizes IPv6
    addresses.

    Bugfix: Potential undefined variable condition in get_smh. (Derives
    seconds, minutes, and hours from seconds.)

    Cosmetic:

	Fixed displayed single-digit day-of-month in report heading when
	"-d <blurfl>" specified. (Broken in v1.1.6)

	Added day-of-week to report heading when "-d <blurfl>" specified.

	Now always displays "Postfix Log Summaries" heading.

    Minor code optimizations to employ defined-or ("//") and reduce
    from List::Util.

    Added -x (debug) option. Debugging emitted to STDERR

    Added --unprocd <filename> option. Unprocessed log lines written to
    specified filename.

rel-1.1.10	20250529

    Bugfix: Messages rejected in latter SMTP processing, after they'd
    already been assigned a queue i.d., were incorrectly counted as
    received.

    Bugfix: postscreen reject detail processing was inadvertently hobbled
    in 1.1.7 as a side-effect of streamlined host/domain/ip-address parsing.
    Fixed.

rel-1.1.9	20250527

    Bugfix: Messages rejected in cleanup were incorrectly counted
    as received.

    Bugfix: In the unlikely (?) event a qid was used more than once
    in the same logfile input only the size of the message with the
    first occurrence of that qid would be counted.

    Bugfix: Eliminated errant debugging message that escaped my
    attention in versions 1.1.7 and 1.1.8.

    Documentation bugfix: "Addresses" misspelled as "adresses." Thanks
    and a tip o' the hat to Sven Hoexter (sven-at-stormbind-dot-net) for
    the heads up.

rel-1.1.8	20250525

    Removed the following deprecated options

	--no_bounce_detail
	--no_deferral_detail
	--no_reject_detail
	--no_smtpd_warnings

    pflogsumm no longer accepts underscores ("_") as part of option
    names. (Note: this finally addresses four-year-old Bugzilla bug
    1931403.)

    Code cleanup: Changed some variable constants to true constants.

    Added test for reject type "BDAT" (Thanks to Maxim,
    admin-at-modum-dot-by, for the heads up.)

    Fixed unitialized $hostID value bug-reported to OpenSUSE. Thanks to
    Sven Uebelacker (uebelhacker) for the bug report.

	I *suspect* that, with an earlier fix I applied, that undefined
	value will no longer occur, but this fix certainly won't hurt
	anything—just in case.

    Added -srs-mung option. Thanks and a tip o' the hat to Tom Hendrikx
    (tom-at-whyscreem-dot-net) for the contribution.
    
rel-1.1.7	20250524

    Added parsing for "Recipient address triggers...," as in DISCARD on
    recipient actions.

    Improved "deferred" and "bounce" detail

    Added --use-orig-to switch, which causes the value of the "orig_to"
    field to be reported, rather than that of the "to" field, when
    "orig_to" is present.  (This was long-ago requested by Tony Earnshaw
    and was overlooked by me.  My apologies, Tony.)

    Added --rej-add-to switch, which adds the target email address to
    sender and client reject reports.  (This was also long-ago requested
    by Tony Earnshaw.)

	For client rejects this could have created an ambiguity: If only
	either --rej-add-from or --rej-add-to was specified, you'd have
	no way of knowing, after-the-fact, which address was reported.
	So "<" and ">" have been added, to indicate "from" and "to,"
	respectively.  If both are specified, you get "from -> to."

    Added --colwidth switch, to allow adjustment of report's output width.
    (Default remains at 80 columns.)

	N.B.: --verbose-msg-detail overrides

    Now condenses deferrals in a manner similar to bounces.

    Now condenses warnings in a manner similar to reject reports.

    Made count reporting more consistent.  Now each reporting section
    shows the item count in parenthesis (e.g.: "(nn)") or, if the
    count is limited and less than full count, as "(top nn of nn)".
    Suggestion by Michael Rasmussen (michael-at-michaelsnet-dot-us),
    tho not done in the way he suggested.

    Fixed policyd-spf-perl log line detection.

    Fixed conversation/lost connection while sending/receiving deferral
    detection

    Improved "said:" string trimmer to be a mite less aggressive when it
    didn't have to be.

    Improved reject report consolidation.

    In Host/Domain Summary: Message Delivery: Changed "sent cnt" to "msg
    cnt" since we're talking about messages delivered, not necessarily
    "sent," per se.

    Fixed bug in smtpd "disconnect from" parsing and streamlined.

    Removed superfluous additional "bounced" processing

    Caught another warning message

    Catch "Server configuration error" lines.

    Enhanced FQDN/IP addr/domain name parsing (in gimme_domain()):

	. More exhaustive IPv6 address check
	. Handles IPv6-mapped-IPv4 addresses
	. Properly handles the newer, longer TLDs
	. Treats in-addr.arpa and ip6.arpa FQNS like "unknown"s
	. More streamlined

    Added pffrombyto and pftobyfrom command-line utilities to the
    distribution. (Actually in 1.1.6.)

rel-1.1.6	20250522

    Renamed from "pflogsumm.pl" to "pflogsumm"

    Merged Debian patches through 1.1.5-8. Following are excerpted from
    Debian changelog.

	Fix regex in milter-rejects patch. Kudos to Andreas Jaggi
	<debianbug@jaggi.info> for the report and patch. (Closes:
	#1027829)

	Update postscreen-rejects patch with a fix for IPv6
	addresses. Kudos to Juri Haberland <juri@sapienti-sat.org>
	for the fix. (Closes: #955627)

	Add patch to count milter rejects provided by Matus Uhlar.

	Import postscreen support patch provided by Matus Uhlar
	d/patches/postscreen-rejects (Closes: #861402)

    Now matches "traditional" log date strings with either leading space
    or leading zero on single-digit days. (Debian bug report 1068425)

    Improvement to "unprocessed" debugging code—used for maintenance only.

rel-1.1.5	20120205

    Fixed RFC 3339 support.  Releases 1.1.3 and 1.1.4 were badly broken
    in this respect.  Thanks and a tip o' the hat to Sven Hoexter
    (sven-at-timegate-dot-de) for the help.

    ETA (2025-05-21): From Debian changelog: Thanks to Mihai Stan
    <mihai.stan@gameloft.com> for the bugreport and the initial patch.

rel-1.1.4	20120201

    Modified for compatibility with -o syslog_name=blurfl/submission
    and -o syslog_name=blurfl/smtps set in master.cf.  (These are the
    defaults in Postfix 2.9 and beyond.)

	N.B.: This doesn't mean you'll get submission and
	smtps broken-out separately from plain old smtp,
	it simply means the presence of the new sub-strings
	won't break Pflogsumm.

    Changed "_"s (underscores) in option switches to "-"s (dashes).
    (Underscores are still accepted.)  Thanks and a tip o' the hat
    to David Landgren (david-at-landgren-dot-net) for the suggestion.

    Removed switches deprecated in 1.1.3 from the docs.

    Improved ISO timestamp parsing to account for optional fractional
    seconds part.  (This is thrown-away by Pflogsumm.)

    Minor updates to the FAQ.

    Replaced "depreciated" with "deprecated" throughout.  Thanks and
    a tip o' the hat to Rob Arista for the heads-up.

    Fixed bug in host normalization function that was broken for
    IPv4 addresses.

rel-1.1.3	20100320

    Added long-awaited switches to optionally reduce detail reporting:
    --bounce_detail=N, --deferral_detail=N, --reject_detail=N,
    --smtp_detail=N, smtpd_warning_detail=N, and --detail=N.  Setting
    any of them to 0 suppresses that detail entirely.  --detail=N sets
    the default for all of them, as well as for -u=N and -h=N.

    With the above enhancements, the following switches are deprecated,
    and will eventually be removed: --no_bounce_detail,
    --no_deferral_detail, --no_reject_detail and --no_smtpd_warnings.
    They are replaced by setting the desired --*_detail=0.  They still
    work, but using them generates a warning.

    Added support for parsing logs with RFC 3339 timestamps.  Thanks
    and a tip o' the hat to sftf-at-yandrex-dot-ru for the heads-up
    and the code contribution.  (N.B.: My code does not require a
    command-line switch.  The format is detected automatically.)

    Fixed some --ignore-case inconsistincies.  Thanks and a tip o'
    the hat to Richard Blanchet (richard-dot-blanchet-at-free-dot-fr)
    for the heads-up and the diff.

    Fixed parsing bug that resulted in attempts to treat
    kind-of-IPv4-looking strings as IPv4 addresses.  (I really need to
    improve reject/defer/etc. "reason" parsing to fix this properly.)
    Thanks to Joseph Vit (jvit-at-certicon-dot-cz) for the bug
    report.

rel-1.1.2	20080629

    Fixed bug with calculating yesterday's date in vicinity of DST
    changes.  (Thanks and a tip o' the hat to Wieland Chmielewski
    for bringing the problem to my attention.)

    Added missing "underlining" to some (sub-)section titles for
    consistency.


rel-1.1.1	20070406

    Fixed to parse Postfix-2.3 (and beyond) logfiles.  Thanks to
    whomever contributed to

	http://bugs.gentoo.org/show_bug.cgi?id=144236

    Removed support for vmailer.

    Removed "SMTPD_STATS_SUPPORT" "fences" in code in favour of code
    to automatically detect the availability of Date::Calc.  If
    --smtpd_stats is specified and Date::Calc is not installed, now
    bails-out with friendly message.  (Adapted from suggestion and
    examples provided by David Landgren <david-at-landgren-dot-net>.
    Thanks!)

    Removed rem_smtpd_stats_supp.pl utility from distribution.  (No
    longer needed.)

    Memory footprint improvement: Pflogsumm no longer stores data for
    reports that are supressed via --no_<mumble> switches.

    Removed extraneous arguments in two calls to print_nested_hash
    that would result in the "quiet" flag being ignored.  Thanks to
    Pavel Urban (pupu-at-pupu-dot-cz) for bringing that to my
    attention.

    Added notes to FAQ about translations and i18n, about mismatching
    "received"/"delivered" counts, about bug in calculating "yesterday,"
    and about John Fawcett's "prepflog."


rel-1.1.0	20031212

    Promoted 1.0.18 (Beta) to "production/stable" version release.


rel-1.0.18	20031204

    Fixed reject parsing for "DATA" smtpd rejects.


rel-1.0.17	20031129

    Fixed reject parsing to properly recognize bare "User unknown".
    (Thanks to J.D. Bronson" <jeff_bronson-at-wixb-dot-com> for the
    bug-report and sample logfile lines.)


rel-1.0.16	20031128

    Re-worked "to" and "from" field parsing in reject report handling to
    make it more robust in pathological cases.  (Thanks to Paul Brooks
    <paul-dot-brooks-at-metro1-dot-com> and Lars Hecking
    <lhecking-at-nmrc-dot-ie> for the bug-reports and sample logfile
    lines.)

    Fixed warnings resulting from non-standard, extraneous syslog input.
    (Thanks to Mathias Behrle <m123-at-arcor-dot-de> for the report.)

    Fixed reject parsing to account for really atrocious garbage in
    HELO strings, sender addresses and recipient addresses.  (Thanks to
    Lars Hecking <lhecking-at-nmrc-dot-ie> for the bug-report and sample
    logfile lines.)

    Fixed reject parsing to properly recognize "CONNECT" smtpd rejects.
    (Thanks to Mike Vanecek <postfix_list-at-mm-vanecek-dot-cc> for the
    bug-report.)

    Fixed reject parsing to properly recognize "User unknown in relay
    recipient table."  (Thanks to Lars Hecking <lhecking-at-nmrc-dot-ie>
    for the bug-report and sample logfile lines.)

    Some code optimization resulting in 3-5% performance improvement.


rel-1.0.15	20030914

    Pflogsumm *should* now properly parse and handle log entries with
    IPv6 addresses in them.  (Adapted from idea and code submitted by
    Stefan `Sec` Zehl <sec-at-42-dot-org>.)

    Fixed "User unknown in local recipient table" reject reports to
    show target recipient address, rather then sending domain, to be
    consistent with other "recipient" reports.  (Thanks to WC Jones
    <sx-at-insecurity-dot-org> for the suggestion.)

    Fixed parsing of "Recipient address rejected" for recipient
    address verification (RAV) rejects.  (Thanks to Len Conrad
    <LConrad-at-Go2France-dot-com> for the suggestion.)

    FAQ additions regarding recommendations on how to format custom
    reject reports for "best" results in Pflogsumm's output and note
    regarding "non-standard" syslogd's.


rel-1.0.14	20030909

    Fixed bug in parsing for "Host/Domain Summary: Messages Received"
    report improvement (rel-1.0.13) that resulted from (unexpected, to
    me) lines such as

	... postfix/smtpd[31430]: E02DDB04E: client=blurfl[1.2.3.4],
	sasl_method=LOGIN, sasl_username=phred

rel-1.0.13	20030907

    The "Host/Domain Summary: Messages Received" report would show simply
    "from=<>", for the host/domain, for postmaster bounces.  Pflogsumm now
    substitutes the client hostname or IP address for these, unless it's
    from the pickup daemon, in which case "from=<>" is retained.  (Note
    that "Senders by message count/size" reports are unaffected by this
    change.)

    "Senders by message count" and "Recipients by message count" reports
    are now secondarily sorted by domain, host and user parts.  (As a
    side-effect:  So are "Senders by message size" and "Recipients by
    message size" but, being as the odds are against numerous senders and
    recipients having the same total message sizes, this change hasn't much
    effect with those.)

rel-1.0.12	20030902

    Rejects, warns, etc. now print sub-category totals.  E.g.:

	message reject detail
	---------------------
	  RCPT
	    Relay access denied (total: 6)

    (Adapted from idea and code submitted by blake7-at-blake7-dot-org.)

    Reject, warning, etc. reports are now sorted by 2nd column (e.g.: IP
    address, domain, etc.) within count.  (Adapted from idea and code
    submitted by David Landgren <david-at-landgren-dot-net>.)

    Added --no_smtpd_warnings (report) option.

    Added --no_no_msg_size (report) option.

    A couple of minor improvements to reject parsing/reporting.

rel-1.0.11	20030617

    This is a bug-fix release.

    There was a problem in the way pflogsumm-1.0.8 through 1.0.10
    handled the --syslog_name option: When --syslog_name was
    specified, some log entries with the default "postfix" name would
    be missed.  This revision may introduce incompatibilities if
    you're logging two or more instances of Postfix to the same log.
    See the docs included in the tarball for details.

rel-1.0.10	20030219

    Re-worked "% rejected" calculation to include messages discarded
    and added "% discarded" calculation/display.

rel-1.0.9	20030217

    Bugfix: If Perl's -w is specified at run-time and there were no
    messages delivered or rejected, uninitialized variable warnings
    would be issued in the percent rejected calculation code.  Thanks
    for Larry Hansford (and many others since!) for the bug report.

rel-1.0.8	20030216

    Bugfix: Fixed problem with "orig_to=<blurfl>" being parsed as
    "to=<blurfl>".  This resulted in *very* wrong output.  Thanks to
    Bjorn Swift for the report.

    Added "% rejected" to Grand Totals "rejected" figure.  This is
    calculated as: rejected / (delivered + rejected).  (I did this
    purely because it amuses me.)

    Bugfix: Fix, in reject processing, for truncated overly-long "to"
    fields.  Thanks to Rick Troxel for reporting the problem.

    Added --syslog_name option.  Thanks to Ben Rosengart for the
    suggestion.

rel-1.0.7	20021231

    Corrected and improved message reject/reject warn/hold/discard
    parsing.  Again.  (Thanks to Peter Santiago for reporting the
    problem that initiated these improvements.)

rel-1.0.6	20021230

    Added support for reporting message reject warnings, holds and
    discards.

	Note: Message rejects, reject warnings, holds and discards
	are all reported under the "rejects" column for the Per-Hour
	and Per-Day traffic summaries.

    More aggressive verp munging (again).  (Prompted, in part, by a
    suggestion from Casey Peel.  Thanks!)

    Verp munging now applied to sender addresses in smtpd reject
    reports.

	WARNING: Please note that verp munging is highly experimental!

    Pflogsumm distribution changed to gzip'd tarball format.

    Tightened-up parsing.  Thanks for Ralf Hildebrandt for noting and
    reporting the problem.

    Docs at the top of pflogsumm.pl changed to POD format for automated
    manpage generation.

    README added.

    Automatically-generated manpage added.

    "To Do" moved out of ChangeLog into separate file.

    Package now includes convenience Perl script for removing smtpd
    stats support for those who don't have Date::Calc, don't want to
    install it and don't care about smtpd stats reporting.

    Belated thanks to Len Conrad in regards to the Sender Address
    Verification work in 1.0.5.

rel-1.0.5	20021222

    Fixed to parse smtpd rejects for Postfix versions as of 20021026.
    (Retained compatibility with older versions of Postfix.)

	Note: smtpd and header-/body-checks warn, hold and discard
	messages are *not* currently parsed/reported.  I'll need to
	get some logfile entries.

    Fixed parsing to handle the new "sender address verification"
    lines.

    Added "--zero_fill" option to put zeros in columns that might
    otherwise be blank in some reports. (Suggestion by Matthias
    Andree).

    Fixed "Message size exceeds fixed limit" parsing for reject
    reporting.

rel-1.0.4	20020224

    Added "--no_*_detail" options.  (Suppresses some of the "detail"
    reports.)

    Added "--version" option.  (Thanks to "Guillaume")

    Improved handling of "[ID nnnnnn some.thing]" stuff  (Thanks to
    Blake Dunmire)

    Repaired and optimized some of the "reject" parsing.

    Added processing and report of smtp delivery failures.

    Added --rej_add_from option: For those reject reports that list
    IP addresses or host/domain names: append the email from address
    to each listing.  (Note: does not apply to "Improper use of SMTP
    command pipelining" report.)


rel-1.0.3	20010520

    Minor re-work of "reject: RCPT" parsing to account for Yet Another
    Change in the logfile format.  (Semi-colon changed to a comma in
    "blocked using rbl.maps.vix.com,".)


rel-1.0.2	20010519

    Took another whack at "verp" munging.  *sigh*

    Added code to summarize "Improper use of SMTP command pipelining"
    rejects by client.


rel-1.0.1	20010518

    Modified to catch "reject: header" log entries changed as of
    postfix release-20010228 (?).  Prior versions of postfix had the
    string "warning: " (where the qid normally is).  Thanks to Glen
    Eustace <root@godzone.net.nz>, Len Conrad
    <lconrad@go2france.com>, Daniel Roesen
    <droesen@entire-systems.com>, Milivoj Ivkovic <mi@alma.ch> and
    j_zuilkowski@hotmail.com (Jon Zuilkowski) for reports and/or
    patches.

    Fixed a couple of "uninitialized variable" problems.

    Committed (actually starting with 20000925-01beta) to CVS.


20000925-01

    Added a line to compensate for (new?) "[ID nnnnnn some.thing]"
    sub-strings that appear in logfile entries under Sun Solaris 8.
    (At least.  Others?)

    Note: Upon being committed to CVS, this became rel-0.9.0.


20000916-01

    Forgot to add "--problems_first" to the "usage" output and in the
    synopsis at the top of the comments.


20000908-01beta

    Re-did what 20000907-02beta was *supposed* to be!  To wit:
    replaced missing "--ignore_case" bugfix, "panic" entry processing,
    improvements to "fatal" and "warning" message reporting and
    missing "--mailq" option.  (Obviously: 20000907-02beta was
    derived from the wrong code base.)


20000907-02beta

    Fixed bug in ISO date formatting that caused the month to be off
    by one.  Thanks to Kurt Andersen <kurta@sitefs1a.spk.agilent.com>
    for the report and the patch.

    Fixed overflow of connect time reporting into days.  (Can happen
    during weekly summaries for sites with large volumes of email.)
    Thanks again to Kurt Andersen <kurta@sitefs1a.spk.agilent.com>
    for the report and the fix.

    Improved "rejects" reporting *again*.  Thanks to Thomas Parmelan
    <tom@proxad.net> for the patch.

    Added "--problems_first" option to print "problem" reports such as
    bounces, defers, warnings, fatal errors, etc. before "normal"
    reports.


19991219-02

    Fixed bug in code that prevented "--ignore_case" from actually
    doing anything.  Thanks to Nadeem Hasan <nhasan@usa.net> for
    reporting this and supplying the fix.


19991219-01beta

    Added the following caveat to the "Notes" section of Pflogsumm:

	-------------------------------------------------------------
	IMPORTANT: Pflogsumm makes no attempt to catch/parse non-
		   postfix/vmailer daemon log entries.  (I.e.: Unless
		   it has "postfix/" or "vmailer/" in the log entry,
		   it will be ignored.)
	-------------------------------------------------------------

    Added reporting of "panic" log messages.  This was missed until
    now!
    
    Increased reporting detail of "fatal" and "warning" entries.
    (Actually, "warning" detail was increased in 19991120-01beta.
    Neglected to note it then.)


19991123-01 (unreleased)

    Added "--mailq" option.  (Convenience factor.)  Runs Postfix's
    "mailq" command at the end of the other reports.

	-------------------------------------------------------
	NOTE: If Postfix's "mailq" command isn't in your $PATH,
	you'll have to edit the "$mailqCmd" variable located
	near the top of pflogsumm to path it explicitly.
	-------------------------------------------------------


19991120-01

    Tried once again to improve parsing of reject log entries.
    Specifically: those associated with "RCPT" rejects.


19991016-01 (not generally released)

    Added --smtpd_stats.  Generates smtpd connection statistics.

	---------------------------------------------------------------
	NOTE: Support for --smtpd_stats requires the Date::Calc module
	(available from CPAN).  If you don't want to go to the trouble
	of fetching & installing that module, and you don't want smtpd
	stats anyway, *carefully* identify all of the code sections
	delimited by "# ---Begin: SMTPD_STATS_SUPPORT---" and
	"# ---End: SMTPD_STATS_SUPPORT---" and remove them.
	---------------------------------------------------------------


19990909-01 (not generally released)

    Added -i and --ignore_case options.  Causes entire email address
    to be lower-cased instead of just the host/domain part.

    Added "use locale".  (This means that the sorting order within
    reports may be different from before--depending on how you have
    your machine's locale set.)


19990904-03

    Improved "reason" parsing and reporting for bounced and deferred
    messages.

    Added parsing of "cleanup" reject lines to catch PCRE/regexp
    rejects.

    Added "reject" stats to per-hour and (on multi-day reports) per-
    day reports.

    Improved "warnings" report to show details.

    A single message deferred multiple times showed up as multiple
    deferrals--implying that multiple messages were deferred.  Now
    shows "how many messages were deferred" and "how many deferrals"
    as separate stats.

    Changed display of "Grand Totals" to make it a bit more readable
    (IMO).

    Added "automatic perl finder" line for those systems that don't
    support the "#!" notation.

    By popular demand: added note to comments as to where pflogsumm
    home page could be found :-).


19990413-02

    Fixed problem with last octet of IP address getting truncated in
    reports when IP address used in place of unknown hosts.

    Changed the way a few internal variables were handled to be
    compatible with Perl 5.003.  Don't run it under Perl 5.003 with the
    "-w" perl switch, tho!  It will issue lots of warnings.  All tests
    I performed indicated that it produces the correct output, however.

	------------------------------------------------------------
	NOTE: While this version was tested to work with Perl 5.003,
	I recommend that you upgrade to 5.004 or later.  I will not
	guarantee that I'll remember to do the full regression-
	testing that I usually do with 5.003 as well.
	------------------------------------------------------------


19990411-01

    NOTICE: As of this version of pflogsumm.pl, the "-c" switch is
	    GONE!  (As per the previous notice.)

    Added "--help" option to emit short usage message and bail out.

    Added "--iso_date_time" switch to change displays of dates and times
    to ISO 8601 standard formats (CCYY-MM-DD and HH:MM), rather than
    "Month-name Day-number CCYY" and "HHMM" formats (the default).

    Added "--verbose_msg_detail" switch.  This causes the full "reason"
    to be displayed for the message deferral, bounce and reject summaries.
    (Note: this can result in quite long lines in the report.  Also note
    that there have been a couple of subtle changes in the "reason"
    parsing/reporting in the default mode (no "--verbose_msg_detail".)

    Added "--verp_mung" option.  The problem this addresses is "VERP"
    generated (??? so far as I can tell!) addresses (?) of the form:

	"list-return-NN-someuser=some.dom@host.sender.dom"

    These result in mail from the same "user" and site to look like it
    originated from different users, when in fact it originates from the
    same "user."  There are presently two "levels" of address munging
    available.  With no numeric argument (or any value less than 2), the
    above address will be converted to:

	"list-return-ID-someuser=some.dom@host.sender.dom"

    In other words: the numeric value will be replaced with "ID".

    By specifying "--verp_mung=2", the munging is more "aggressive",
    converting the above address to something like:

	"list@host.sender.dom"

    Which looks more "normal."

    (Actually: specifying anything less than 2 does the "simple" munging
    and anything greater than 1 results in the more "aggressive" hack
    being applied.)

    Added "--uucp_mung" switch for consistence with "--verp_mung".


19990321-01

    NOTICE: As of this version of pflogsumm.pl, versions of VMailer
	    prior to 19981023 are no longer supported.  Sorry.
	    Pflogsumm-19990121-01.pl will be made permanently
	    available from now on for those with out-of-date versions
	    of VMailer prior to 19981023.

    NOTICE: As of this version of pflogsumm.pl, the "-c" switch is
	    DEPRECATED.  This version is transitional and retains it.
	    The next version will not have it.  Subsequent versions
	    may re-use it for another purpose.  Use the "-h" and "-u"
	    switches instead.

    Added "-h" and "-u" switches to provide finer-grained control over
    report output.  Deprecated "-c".

    Added "deferred" and "bounced" to "Grand Totals", "by-day" and "by-
    hour" reports.

    Added "by-host/domain" reports.  For sent (delivered) and received
    messages:  lists message count, total size of messages and
    host/domain.  For delivered messages: also lists number of deferred
    messages and average and maximum delivery time.  Both reports sorted
    by message count in descending order.

    Grand totals also now list number of recipient and sender
    hosts/domains.

    Re-wrote "by-user" data collection storage to reduce memory consumption
    by in-memory hashes.

    Moved "credits" from pflogsumm.pl to this file.


19990121-01

    Now accounts for forwarded messages.

    Side-effects of the above:
    
	. Total messages size now broken-out into total bytes received
	  and total bytes delivered.
	. Count of forwarded messages now reported.
	. Postfix-internally-generated messages (e.g.: Postmaster
	  notifications of bounces) are no longer counted as "received".
	  (They do, however, show up as "delivered".)
	. Forwarded addresses no longer show up as "recipients" (just
	  as with aliases and mailing lists).

	Note that "delivered" will exceed "received" when messages
	are forwarded because of additional header lines.


19990116-01

    Added processing for "reject" log entries.

    Expanded detail of "deferred" and "bounced" log entries to include
    "reason".


19990110-05

    Added "messages received/delivered by hour" and "messages
    received/delivered by day" reports.  See the "Notes" section in the
    documentation for details on how these behave.

    Broke-out total message count to "messages received" and "messages
    delivered".

    (For the above two enhancements: "postfix/pickup" and "postfix/smtpd"
    lines are now processed.  They used to be discarded.)

    Renamed "summary" report to "Grand Totals".

    Added code to parse date & time stamps from log entries.  This was
    needed, in part, for the "messages per-hour/day" reports.  It would
    have been necessary for future enhancements in the way of date- &
    time-based processing anyway.

    Added "Notes" section to docs at top of code.


19990109-01

    Improved display of large integer values.


19990107-01

    Bugfix only.  Data for "extended detail" listing was being built
    even if "-e" not specified.  This resulted in unexpected excessive
    memory consumption when crunching large amounts of data.

    Added warning about memory consumption when "-e" option specified.


19990103-01

    Further improvement to "accuracy" of by-domain-then-logname sort.
    (Presently used only by "extended detail" listing).  For comparison
    purposes:  mungs "machine(s).host.dom" into "host.dom.machine(s)" so
    sort is keyed on "base" domain name before machines within the
    domain.  Does *not* attempt to reverse the order of the "machine(s)" -
    so within a particular "base" domain, may not come out in quite the
    right order.  ("foo.bar.some.dom" will come out before
    "sales.acme.some.dom", for example.)
    Also works for 2x2-style domain names.  (I.e.: "some.do.co")


19990102-01 (never released)

    Added "mung UUCP-style bang-paths" switch (-m).

    Improved performance and "accuracy" of by-domain-then-logname sort
    used by (only at present) "extended detail" listing.


19990101-02

    Added "extended detail" option (-e).  At present this includes only a
    per-message detail listing, which lists per-message detail sorted by
    sender domain, then sender username, then by queue i.d.

    Improved docs a bit.


19990101-01

    Replaced warning message when message size unavailable in favor of
    producing a report of these, sorted by queue i.d.  Unlike the other
    reports, this report header is not emitted at all if there are none of
    these.  (Always acts as if the -q switch had been specified).


19981231.01

    Added experimental code to lower-case all domain names so that
    "user@foo.dom" and "user@FOO.DOM" will come out the same.

    Added test for existence of message size value when "to=" records are
    being processed.  This was necessary for cases in which the logfile
    entry containing the "status=sent" record is not processed at the same
    time as the logfile containing the "size=nnnn" record.  Note that this
    will produce a summary that will show recipient counts without
    matching recipient sizes.  The only way to cure this would be to
    create a separate disk file to "memorize" message sizes.  (Which would
    introduce a whole new raft of problems.)

    Added warning message (emitted to stderr) when the situation above is
    detected.

    Fixed "usage" message to indicate you can specify files on command
    line

    Wrapped a couple of long lines in the comments and code.

    Added (temporary) version numbering scheme.

    Started this log.

    Other changes/enhancements since previous un-version-numbered
    versions:  deals with log entries for VMailer as well as Postfix, more
    robust parsing of "to=" and "from=" fields (now handles spaces in
    these), eliminated double-counting of message sizes (happened when 
    delivery was deferred), re-structured parsing to be more robust (not-
    to-mention correct!), added "grand summary" report at top (total
    messages, total size, number of senders and recipients).


Credits

    [Note: The credits reflect suggestions and code contributions that
     have actually been added.  If your contribution doesn't appear
     here, it may simply mean that it hasn't been added yet.  (In which
     case it should be on the list above.)  On the other hand: if I
     failed to credit you for something that *has* been added, please
     let me know!]

    Paul D. Robertson <proberts@clark.net>

	For much testing and patience and many good suggestions on
	how pflogsumm could be improved.

    Simon J Mudd <simon.mudd@alltrading.com>

	For the following code contributions:

	    Add "deferred" and "bounced" to "by hour" reports.
	    (I also added these to "by day" reports and "Grand
	    Totals".)

	    "VERP" (?) address munger (less-agressive version)

	Suggestion for "by domain" delivery delay report.

	For the --smtpd_stats suggestion.

    Anders Arnholm <anders@arnholm.nu>

	For pointing out the problem with forwarded messages.

    Walcir Fontanini <walcir@densis.fee.unicamp.br>

	For pointers to changes to make for Perl 5.003 compatibility.
	(Added to 19990413-02beta.)  (Which I will *try* to keep in
	mind!)

    Eric Cholet <cholet@logilune.com>

	For the --ignore_case patch.

    Kurt Andersen <kurta@sitefs1a.spk.agilent.com>

	For the ISO date formatting month-off-by-one patch and the
	connect time overflow fix.

    Thomas Parmelan <tom@proxad.net>

	For improved "rejects" reporting patch.

    Glen Eustace <root@godzone.net.nz>

	Patch to fix "reject: header" matching after Wietse changed
	the logfile format.