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POSTFIX-LOGWATCH(1)	    General Commands Manual	   POSTFIX-LOGWATCH(1)

NAME
       postfix-logwatch	- A Postfix log	parser and analysis utility

SYNOPSIS
       postfix-logwatch	[options] [logfile ...]

DESCRIPTION
       The  postfix-logwatch(1)	 utility is a Postfix MTA log parser that pro-
       duces summaries,	details, and statistics	 regarding  the	 operation  of
       Postfix.

       This utility can	be used	as a standalone	program, or as a Logwatch fil-
       ter  module to produce Postfix summary and detailed reports from	within
       Logwatch.

       Postfix-logwatch	is able	to produce a wide range	of reports  with  data
       grouped	and  sorted  as	much as	possible to reduce noise and highlight
       patterns.  Brief	summary	reports	provide	a quick	 overview  of  general
       Postfix	operations and message delivery, calling out warnings that may
       require attention.  Detailed reports provide easy to  scan,  hierarchi-
       cally-arranged and organized information, with as much or little	detail
       as desired.

       Postfix-logwatch	 outputs two principal sections: a Summary section and
       a Detailed section.  For	readability and	quick scanning,	all  event  or
       hit  counts appear in the left column, followed by brief	description of
       the event type, and finally additional statistics or count  representa-
       tions may appear	in the rightmost column.

       The following segment from a sample Summary report illustrates:

	   ****** Summary ********************************************

		 81   *Warning:	Connection rate	limit reached (anvil)
		146   Warned

	     68.310M  Bytes accepted			    71,628,177
	     97.645M  Bytes delivered			   102,388,245
	   ========   ================================================

	       3464   Accepted					41.44%
	       4895   Rejected					58.56%
	   --------   ------------------------------------------------
	       8359   Total				       100.00%
	   ========   ================================================

       The report warns	that anvil's connection	rate was hit 81	times, a Post-
       fix  access  check  WARN	 action	 was  logged 146 times,	and a total of
       68.310 megabytes	(71,628,177 bytes) were	accepted into the Postfix sys-
       tem, delivering 97.645 megabytes	of data	(due to	multiple  recipients).
       The Accepted and	Rejected lines show that Postfix accepted 3464 (41.44%
       of  the total messages) and rejected 4895 (the remaining	58.56%)	of the
       8359 total messages (temporary rejects show up elsewhere).

       There are dozens	of sub-sections	available in the Detailed report, each
       of whose	output can be controlled in various  ways.   Each  sub-section
       attempts	to group and present the most meaningful data at superior lev-
       els,  while  pushing less useful	or noisy data towards inferior levels.
       The goal	is to provide as much benefit as possible from smart  grouping
       of  data,  to allow faster report scanning, pattern identification, and
       problem solving.	 Data is always	sorted in descending order  by	count,
       and then	numerically by IP address or alphabetically as appropriate.

       The  following  MX  errors segment from a sample	Detailed report	illus-
       trates the basic	hierarchical level structure of	postfix-logwatch:

	   ****** Detailed *******************************************

		261   MX errors	--------------------------------------
		261	 Unable	to look	up MX host
		222	    Host not found
		 73	       foolishspammer.local
		 60	       completely.bogus.domain.example
		 11	       friend.example.com
		 39	    No address associated with hostname
		 23	       dummymx.sample.net
		 16	       pushn.spam.sample.com

       The postfix-logwatch utility reads from STDIN or	from the named Postfix
       logfile.	 Multiple logfile arguments may	be specified,  each  processed
       in  order.  The user running postfix-logwatch must have read permission
       on each named log file.

   Options
       The options listed below	affect the operation of	postfix-logwatch.  Op-
       tions specified later on	the command line override earlier  ones.   Any
       option may be abbreviated to an unambiguous length.

       -f config_file
       --config_file config_file
	      Use  an  alternate configuration file config_file	instead	of the
	      default.	This option may	be used	more than once.	 Multiple con-
	      figuration files will be processed in the	order presented	on the
	      command line.  See CONFIGURATION FILE below.

       --debug keywords
	      Output debug information during the  operation  of  postfix-log-
	      watch.   The  parameter  keywords	 is one	or more	comma or space
	      separated	keywords.  To obtain the list of valid	keywords,  use
	      --debug xxx where	xxx is any invalid keyword.

       --[no]delays
	      Enables  (disables) output of the	message	delays percentiles re-
	      port.  The delays	percentiles report shows percentiles for  each
	      of  the  4 delivery latency times	reported by Postfix (available
	      in version 2.3 and later)	in the form delays=a/b/c/d, where a is
	      the amount of time before	the active queue  (includes  time  for
	      previous delivery	attempts and time in the deferred queue), b is
	      the  amount  of  time  in	 the active queue up to	delivery agent
	      handoff, c is the	amount of time spent making  connections  (in-
	      cluding DNS, HELO	and TLS) and d is the amount of	time spent de-
	      livering	the message.  The total	delay shown comes from the de-
	      lay= field in a message delivery log line.

	      Note: This report	may consume a large amount of memory;  if  you
	      have no use for it, disable the delays report.

       --delays_percentiles p1 [p2 ...]
	      Specifies	 the percentiles to be used in the message delays per-
	      centiles report.	The percentiles	p1, p2,	... range  from	 0  to
	      100, inclusively.	 The order of the list is not sorted - the re-
	      port  will output	the percentiles	columns	in the order you spec-
	      ify.

       --detail	level
	      Sets the maximum detail level  for  postfix-logwatch  to	level.
	      This  option is global, overriding any other output limiters de-
	      scribed below.

	      The postfix-logwatch utility produces a Summary section,	a  De-
	      tailed section, and additional report sections.  With level less
	      than  5, postfix-logwatch	will produce only the Summary section.
	      At level 5 and above, the	Detailed section, and  any  additional
	      report sections are candidates for output.  Each incremental in-
	      crease  in level generates one additional	hierarchical sub-level
	      of output	in the Detailed	section	of the report.	At  level  10,
	      all  levels  are	output.	  Lines	that exceed the	maximum	report
	      width (specified with max_report_width) will  be	cut.   Setting
	      level to 11 will prevent lines in	the report from	being cut (see
	      also --line_style).

       --help Print  usage  information	 and a brief description about command
	      line options.

       --ignore_service	pattern
	      Ignore log lines that contain the	 postfix  service  name	 post-
	      fix/service.  The	parameter service is a regular expression.

	      Note: if you use parenthesis in your regular expression, be sure
	      they are cloistering and not capturing: use  (?:pattern) instead
	      of (pattern).

       --ipaddr_width width
	      Specifies	 that IP addresses in address/hostname pairs should be
	      printed with a field width of width characters.  Increasing  the
	      default may be useful for	systems	using long IPv6	addresses.

       -l limiter=levelspec
       --limit limiter=levelspec
	      Sets the level limiter limiter with the specification levelspec.

       --line_style style
	      Specifies	 how  to  handle  long report lines.  Three styles are
	      available: full, truncate, and wrap.  Setting style to full will
	      prevent cutting lines to max_report_width; this is  what	occurs
	      when  detail  is	11 or higher.  When style is truncate (the de-
	      fault), long  lines  will	 be  truncated	according  to  max_re-
	      port_width.   Setting  style to wrap will	wrap lines longer than
	      max_report_width such that left column hit counts	 are  not  ob-
	      scured.	This  option  takes precedence over the	line style im-
	      plied by the detail level.  The options --full, --truncate,  and
	      --wrap are synonyms.

       --[no]long_queue_ids
	      Enables  (disables)  interpretation of long queue	IDs in Postfix
	      (>= 2.9) logs.

       --nodetail
	      Disables the Detailed section of the report, and all  supplemen-
	      tal  reports.   This  option  provides a convenient mechanism to
	      quickly disable all sections under the  Detailed	report,	 where
	      subsequent  command  line	options	may re-enable one or more sec-
	      tions to create specific reports.

       --[no]summary

       --show_summary
	      Enables (disables) displaying of the the Summary section of  the
	      report.	The variable Posfix_Show_Summary in used in a configu-
	      ration file.

       --recipient_delimiter delimiter
	      Split email delivery addresses  using  the  recipient  delimiter
	      character	 delimiter.   This  should generally match the recipi-
	      ent_delimiter specified in the Postfix parameter	file  main.cf,
	      or  the  default value indicated in postconf -d recipient_delim-
	      iter.  This is very useful for  obtaining	 per-alias  statistics
	      when a recipient delimeter is used for mail delivery.

       --reject_reply_patterns r1 [r2 ...]
	      Specifies	 the  list of reject reply patterns used to create re-
	      ject groups.  Each entry in the list r1 [r2 ...] must be	either
	      a	 three	character  regular  expression	reply code of the form
	      [45][0-9.][0-9.],	or the word "Warn".  The "."  in  the  regular
	      expression  is a literal dot which matches any reject reply sub-
	      code; this wildcarding allows creation of	broad rejects  groups.
	      List  order  is preserved, in that reject	reports	will be	output
	      in the same order	as the entries in the list.   Specific	reject
	      reply  codes  will take priority over wildcard patterns, regard-
	      less of the list order.

	      The default list is "5.. 4.. Warn", which	creates	 three	groups
	      of  rejects:  permanent  rejects,	temporary reject failures, and
	      reject warnings (as in warn_if_reject).

	      This feature allows, for example,	distinguishing	421  transmis-
	      sion  channel closures from 45x errors (eg. 450 mailbox unavail-
	      able, 451	local processing errors,  452  insufficient  storage).
	      Such  a grouping would be	configured with	the list: "421 4.. 5..
	      Warn".  See RFC 2821 for more information	about reply codes.

	      See also CONFIGURATION FILE  regarding  using  reject_reply_pat-
	      terns within a configuration file.

       --[no]sect_vars
       --show_sect_vars	boolean
	      Enables  (disables)  supplementing  each	Detailed section title
	      with the name of that section's level limiter.   The  name  dis-
	      played  is  the command line option (or configuration file vari-
	      able) used to limit that section's output.  With the large  num-
	      ber of level limiters available in postfix-logwatch, this	a con-
	      venient  mechanism  for  determining exactly which level limiter
	      affects a	section.

       --syslog_name namepat
	      Specifies	the syslog service name	that postfix-logwatch uses  to
	      match  syslog  lines.  Only log lines whose service name matches
	      the perl regular expression namepat will be used by postfix-log-
	      watch; all non-matching lines are	 silently  ignored.   This  is
	      useful  when  a  pre-installed Postfix package uses a name other
	      than the default (postfix), or when multiple  Postfix  instances
	      are in use and per-instance reporting is desired.

	      The  pattern  namepat should match the syslog_name configuration
	      parameter	specified in the Postfix parameter file	 main.cf,  the
	      master control file master.cf, or	the default value as indicated
	      by the output of postconf	-d syslog_name.

	      Note: if you use parenthesis in your regular expression, be sure
	      they are cloistering and not capturing: use  (?:pattern) instead
	      of (pattern).

       --[no]unknown
       --show_unknown boolean
	      Enables (disables) display of the	postfix-generated name of 'un-
	      known'  in  formated IP/hostname pairs in	Detailed reports.  De-
	      fault: enabled.

       --version
	      Print postfix-logwatch version information.

   Level Limiters
       The output of every section in the Detailed report is controlled	 by  a
       level  limiter.	 The name of the level limiter variable	will be	output
       when the	sect_vars option is set.  Level	limiters are  set  either  via
       command	line in	standalone mode	with --limit limiter=levelspec option,
       or via configuration file  variable  $postfix_limiter=levelspec.	  Each
       limiter	requires  a  levelspec	argument,  which is described below in
       LEVEL CONTROL.

       The list	of level limiters is shown below.

       There are several level limiters	that control reject sub-sections  (eg.
       rejectbody,  rejectsender,  etc.).  Because the list of reject variants
       is not known until runtime after	reject_reply_patterns is  seen,	 these
       reject  limiters	 are shown below generically, with the prefix ###.  To
       use one of these	reject limiters, substitute ###	with one of the	reject
       reply codes in effect, replacing	each dot with an x character.  For ex-
       ample, using the	default	reject_reply_patterns list of "5.. 4..	Warn",
       three  rejectbody  variants  are	 valid:	--limit	5xxrejectbody, --limit
       4xxrejectbody and --limit warnrejectbody.  As a	convenience,  you  may
       entirely	 eliminate  the	### prefix, and	instead	use the	bare rejectXXX
       option, and all reject level limiter variations will be	auto-generated
       based on	the reject_reply_patterns list.	 For example, the command line
       segment:

	   ... --reject_reply_patterns "421 5.." \
		   --limit rejectrbl="1:10:"

       would automatically become:

	   ... --reject_reply_patterns "421 5.." \
		   --limit 421rejectrbl="1:10:"	--limit	5xxrejectrbl="1:10:"

       See reject_reply_patterns above,	and comments in	the configuration file
       postfix-logwatch.conf.

       [ THIS SECTION IS NOT YET COMPLETE ]

       AttrError
	      Errors obtaining attribute data from service.
       BCCed  Messages that triggered access, header_checks or body_checks BCC
	      action. (postfix 2.6 experimental	branch)
       BounceLocal
       BounceRemote
	      Local and	remote bounces.	 A bounce is considered	a local	bounce
	      if  the relay was	one of none, local, virtual, avcheck, maildrop
	      or 127.0.0.1.
       ByIpRejects
	      Regrouping by client host	IP address of all 5xx (permanent)  re-
	      ject variants.
       CommunicationError
	      Postfix errors talking to	one of its services.
       Anvil  Anvil rate or concurrency	limits.
       ConnectionInbound
	      Connections made to the smtpd server.
       ConnectionLostInbound
	      Connections lost to the smtpd server.
       ConnectionLostOutbound
	      Connections lost during smtp communications with remote MTA.
       ConnectToFailure
	      Failures reported	by smtp	when connecting	to remote MTA.
       DatabaseGeneration
	      Warnings	noted  when  binary database map file requires postmap
	      update from newer	source file.
       Deferrals
       Deferred
	      Message delivery deferrals.  A single deferred message will have
	      one or more deferrals many times.
       Deliverable
	      Address verification indicates recipient address is deliverable.
       Delivered
	      Number of	messages handed-off to a delivery agent	such as	 local
	      or virtual.
       Discarded
	      Messages	that  triggered	 access,  header_checks	or body_checks
	      DISCARD action.
       DNSError
	      Any one of several errors	encounted during DNS lookups.
       EnvelopeSenderDomains
	      List of sending domains.	(2 levels: envelope sender domain, lo-
	      calpart)
       EnvelopeSenders
	      List of envelope senders.	 (1 level: envelope sender)
       Error  Postfix general error messages.
       FatalConfigError
	      Fatal main.cf or master.cf configuration errors.
       FatalError
	      Postfix general fatal messages.
       Filtered
	      Messages that triggered  access,	header_checks  or  body_checks
	      FILTER action.
       Forwarded
	      Messages	forwarded by MDA for one address class to another (eg.
	      local -> virtual).
       HeloError
	      XXXXXXXXXXX
       Hold   Messages that were placed	on hold	by postsuper, or triggered  by
	      access, header_checks or body_checks HOLD	action.
       HostnameValidationError
	      Invalid hostname detected.
       HostnameVerification
	      Lookup  of hostname does not map back to the IP of the peer (ie.
	      the remote system	connecting to smtpd).  Also known as  forward-
	      confirmed	 reverse  DNS  (FCRDNS).  When the reverse name	has no
	      DNS entry, the message "host not found, try again" is  included;
	      otherwise, it is not (e.g. when the reverse has some IP address,
	      but not the one Postfix expects).
       IllegalAddrSyntax
	      Illegal syntax in	an email address provided during the MAIL FROM
	      or RCPT TO dialog.
       LdapError
	      Any LDAP errors during LDAP lookup.
       MailerLoop
	      An  MX  lookup  for the best mailer to use to deliver mail would
	      result in	a sending to ourselves.
       MapProblem
	      Problem with an access table map that needs correcting.
       MessageWriteError
	      Postfix encountered an error when	trying	to  create  a  message
	      file somewhere in	the spool directory.
       NumericHostname
	      A	hostname was found that	was numeric, instead of	alphabetic.
       PanicError
	      Postfix general panic messages.
       PixWorkaround
	      Workarounds  were	 enabled  to avoid remote Cisco	PIX SMTP "fix-
	      ups".
       PolicydWeight
	      Summarization of policyweight/policydweight results.
       PolicySpf
	      Summarization of PolicySPF results.
       Postgrey
	      Summarization of Postgrey	results.
       Postscreen
	      Summarization of 2.7's postscreen	and verify services.
       DNSBLog
	      Summarization of 2.7's dnsblog service.
       Prepended
	      Messages that triggered header_checks or body_checks PREPEND ac-
	      tion.
       ProcessExit
	      Postfix services that exited unexpectedly.
       ProcessLimit
	      A	Postfix	service	has reached or exceeded	the maximum number  of
	      processes	allowed.
       QueueWriteError
	      Problems writing a Postfix queue file.
       RblError
	      Lookup errors for	RBLs.
       Redirected
	      Messages	that  triggered	 access,  header_checks	or body_checks
	      REDIRECT action.
       ###RejectBody
	      Messages that triggered body_checks REJECT action.
       ###RejectClient
	      Messages rejected	by client  access  controls  (smtpd_client_re-
	      strictions).
       ###RejectConfigError
	      Message rejected due to server configuration errors.
       ###RejectContent
	      Messages rejected	by message_reject_characters.
       ###RejectData
	      Messages	 rejected   at	 DATA	stage	in  SMTP  conversation
	      (smtpd_data_restrictions).
       ###RejectEtrn
	      Messages	rejected  at   ETRN   stage   in   SMTP	  conversation
	      (smtpd_etrn_restrictions).
       ###RejectHeader
	      Messages that triggered header_checks REJECT action.
       ###RejectHelo
	      Messages	rejected  at  HELO/EHLO	 stage	in  SMTP  conversation
	      (smtpd_helo_restrictions).
       ###RejectInsufficientSpace
	      Messages rejected	due to insufficient storage space.
       ###RejectLookupFailure
	      Messages rejected	due to temporary DNS lookup failures.
       ###RejectMilter
	      Milter rejects.  No reject reply code is available for these re-
	      jects, but an extended 5.7.1 DSN is provided.  These rejects are
	      forced into the generic 5xx rejects group.  If you redefine  re-
	      ject_reply_patterns  such	 that  it does not contain the pattern
	      5.., milter rejects will not be output.
       ###RejectRbl
	      Messages rejected	by an RBL hit.
       ###RejectRecip
	      Messages rejected	by recipient  access  controls	(smtpd_recipi-
	      ent_restrictions).
       ###RejectRelay
	      Messages rejected	by relay access	controls.
       ###RejectSender
	      Messages	rejected  by  sender access controls (smtpd_sender_re-
	      strictions).
       ###RejectSize
	      Messages rejected	due to excessive message size.
       ###RejectUnknownClient
	      Messages rejected	by unknown client access controls.
       ###RejectUnknownReverseClient
	      Messages rejected	by unknown reverse client access controls.
       ###RejectUnknownUser
	      Messages rejected	by unknown user	access controls.
       ###RejectUnverifiedClient
	      Messages rejected	by unverified client access controls.
       ###RejectVerify
	      Messages rejected	dueo to	address	verification failures.
       Replaced
	      Messages that triggered header_checks or body_checks REPLACE ac-
	      tion.
       ReturnedToSender
	      Messages returned	to sender  due	to  exceeding  queue  lifetime
	      (maximal_queue_lifetime).
       SaslAuth
	      SASL  authentication  successes, includes	SASL method, username,
	      and sender when present.
       SaslAuthFail
	      SASL authentication failures.
       Sent   Messages sent via	the SMTP delivery agent.
       SentLmtp
	      Messages sent via	the LMTP delivery agent.
       SmtpConversationError
	      Errors during the	SMTP/ESMTP dialog.
       SmtpProtocolViolation
	      Protocol violation during	the SMTP/ESMTP dialog.
       StartupError
	      Errors during Postfix server startup.
       TimeoutInbound
	      Connections to smtpd that	timed out.
       TlsClientConnect
	      TLS client connections.
       TlsOffered
	      TLS communication	offerred.
       TlsServerConnect
	      TLS server connections.
       TlsUnverified
	      Unverified TLS connections.
       Undeliverable
	      Address verification indicates recipient address	is  undeliver-
	      able.
       Warn   Messages	that  triggered	 access,  header_checks	or body_checks
	      WARN action.
       WarnConfigError
	      Warnings regarding Postfix configuration errors.
       WarningsOther
	      Postfix general warning messages.

LEVEL CONTROL
       The Detailed section of the report consists of  a  number  of  sub-sec-
       tions,  each  of	 which	is controlled both globally and	independently.
       Two settings influence the output provided in the  Detailed  report:  a
       global detail level (specified with --detail) which has final (big ham-
       mer) output-limiting control over the Detailed section, and sub-section
       specific	 detail	 settings (small hammer), which	allow further limiting
       of the output for a sub-section.	 Each sub-section may be limited to  a
       specific	 depth	level, and each	sub-level may be limited with top N or
       threshold limits.  The levelspec	argument to each of the	level limiters
       listed above is used to accomplish this.

       It is probably best to continue explanation of sub-level	limiting  with
       the  following well-known outline-style hierarchy, and some basic exam-
       ples:

	   level 0
	      level 1
		 level 2
		    level 3
		       level 4
		       level 4
		 level 2
		    level 3
		       level 4
		       level 4
		       level 4
		    level 3
		       level 4
		    level 3
	      level 1
		 level 2
		    level 3
		       level 4

       The simplest form of output limiting  suppresses	 all  output  below  a
       specified  level.   For example,	a levelspec set	to "2" shows only data
       in levels 0 through 2.  Think of	this as	collapsing  each  sub-level  2
       item, thus hiding all inferior levels (3, 4, ...), to yield:

	   level 0
	      level 1
		 level 2
		 level 2
	      level 1
		 level 2

       Sometimes  the  volume  of  output in a section is too great, and it is
       useful to suppress any data that	does not exceed	 a  certain  threshold
       value.	Consider a dictionary spam attack, which produces very lengthy
       lists of	hit-once recipient email or IP addresses.  Each	 sub-level  in
       the  hierarchy can be threshold-limited by setting the levelspec	appro-
       priately.  Setting levelspec to the value "2::5"	will suppress any data
       at level	2 that does not	exceed a hit count of 5.

       Perhaps producing a top N list, such as top 10 senders, is desired.   A
       levelspec of "3:10:" limits level 3 data	to only	the top	10 hits.

       With  those simple examples out of the way, a levelspec is defined as a
       whitespace- or comma-separated list of one or more of the following:

       l      Specifies	the maximum level to be	output for  this  sub-section,
	      with a range from	0 to 10.  if l is 0, no	levels will be output,
	      effectively  disabling  the sub-section (level 0 data is already
	      provided in the Summary report, so level	1  is  considered  the
	      first  useful level in the Detailed report).  Higher values will
	      produce output up	to and including the specified level.

       l.n    Same as above, with the addition that n  limits  this  section's
	      level  1	output to the top n items.  The	value for n can	be any
	      integer greater than 1.  (This form of limiting has less utility
	      than the syntax shown below. It is provided for  backwards  com-
	      patibility; users	are encouraged to use the syntax below).

       l:n:t  This  triplet specifies level l, top n, and minimum threshold t.
	      Each of the values are integers, with l being the	level  limiter
	      as described above, n being a top	n limiter for the level	l, and
	      t	 being	the  threshold limiter for level l.  When both n and t
	      are specified, n has priority, allowing top n lists  (regardless
	      of  threshold  value).  If the value of l	is omitted, the	speci-
	      fied values for n	and/or t are used for all levels available  in
	      the sub-section.	This permits a simple form of wildcarding (eg.
	      place  minimum  threshold	 limits	on all levels).	 However, spe-
	      cific limiters always override  wildcard	limiters.   The	 first
	      form  of	level limiter may be included in levelspec to restrict
	      output, regardless of how	many triplets are present.

       All three forms of limiters are effective only when  postfix-logwatch's
       detail level is 5 or greater (the Detailed section is not activated un-
       til detail is at	least 5).

       See the EXAMPLES	section	for usage scenarios.

CONFIGURATION FILE
       Postfix-logwatch	 can  read configuration settings from a configuration
       file.  Essentially, any command line option can be placed into  a  con-
       figuration file,	and these settings are read upon startup.

       Because	postfix-logwatch can run either	standalone or within Logwatch,
       to minimize confusion, postfix-logwatch inherits	Logwatch's  configura-
       tion file syntax	requirements and conventions.  These are:

          White space lines are ignored.

          Lines beginning with	# are ignored

          Settings are	of the form:

		   option = value

          Spaces or tabs on either side of the	= character are	ignored.

          Any value protected in double quotes	will be	case-preserved.

          All other content is	reduced	to lowercase (non-preserving, case in-
	   sensitive).

          All	postfix-logwatch  configuration	settings must be prefixed with
	   "$postfix_" or postfix-logwatch will	ignore them.

          When	running	under Logwatch,	any values not prefixed	 with  "$post-
	   fix_"  are consumed by Logwatch; it only passes to postfix-logwatch
	   (via	environment variable) settings it considers valid.

          The values True and Yes are converted to 1, and False  and  No  are
	   converted to	0.

          Order  of  settings	is  not	 preserved within a configuration file
	   (since settings are passed by Logwatch via  environment  variables,
	   which have no defined order).

       To  include  a  command line option in a	configuration file, prefix the
       command line option name	with the word "$postfix_".  The	following con-
       figuration file setting and command line	option are equivalent:

	       $postfix_Line_Style = Truncate

	       --line_style Truncate

       Level limiters are also prefixed	with $postfix_,	 but  on  the  command
       line are	specified with the --limit option:

	       $postfix_Sent = 2

	       --limit Sent=2

       The order of command line options and configuration file	processing oc-
       curs as follows:	1) The default configuration file is read if it	exists
       and no --config_file was	specified on a command line.  2) Configuration
       files  are  read	 and processed in the order found on the command line.
       3) Command line options override	any options  already  set  either  via
       command line or from any	configuration file.

       Command	line options are interpreted when they are seen	on the command
       line, and later options will override previously	set options.  The  no-
       table exception is with limiter variables, which	are interpreted	in the
       order  found,  but  only	 after	all other options have been processed.
       This allows --reject_reply_patterns to determine	the  dynamic  list  of
       the various reject limiters.

       See also	--reject_reply_patterns.

EXIT STATUS
       The  postfix-logwatch  utility exits with a status code of 0, unless an
       error occurred, in which	case a non-zero	exit status is returned.

EXAMPLES
   Running Standalone
       Note: postfix-logwatch reads its	log data from one or more named	 Post-
       fix  log	 files,	or from	STDIN.	For brevity, where required, the exam-
       ples below use the word file  as	 the  command  line  argument  meaning
       /path/to/postfix.log.   Obviously you will need to substitute file with
       the appropriate path.

       To run postfix-logwatch in standalone mode, simply run:

	   postfix-logwatch file

       A complete list of options and basic usage is available via:

	   postfix-logwatch --help

       To print	a summary only report of Postfix log data:

	   postfix-logwatch --detail 1 file

       To produce a summary report and a one-level detail report for May 25th:

	   grep	'May 25' file |	postfix-logwatch --detail 5

       To produce only a top 10	list of	Sent email domains, the	summary	report
       and detailed reports are	first disabled.	 Since commands	 line  options
       are  read  and enabled left-to-right, the Sent section is re-enabled to
       level 1 with a level 1 top 10 limiter:

	   postfix-logwatch --nosummary	--nodetail --limit sent='1 1:10:' file

       The following command and its sample output shows a more	complex	 level
       limiter example.	 The command gives the top 3 Sent email	addresses from
       the top 5 domains, in addition, all level 3 items with a	hit count of 2
       or  less	 are  suppressed  (in the Sent sub-section, this happens to be
       email's Original	To address).  Ellipses indicate	top  N	or  threshold-
       limited data:

	   postfix-logwatch --nosummary	--nodetail \
		   --limit sent	'1:5: 2:3: 3::2' file

	   1762	  Sent via SMTP	-----------------------------------
	    352	     example.com
	    310		joe
	    255		   joe.bob@virtdomain.example.com
	      7		   info@virtdomain.example.com
	     21		pooryoda3
	     11		hot93uh
			...
	    244	     sample.net
	     97		buzz
	     26		leroyjones
	     14		sally
			...
	    152	     example.net
	     40		jim_jameson
	     23		sam_sampson
	     19		paul_paulson
			...
	     83	     sample.us
	     44		root
	     39		jenny1
	     69	     dom3.example.us
	     10		kay
	      7		ron
	      6		mrsmith
			...
		     ...

       The  next command uses both reject_reply_patterns and level limiters to
       see 421 RBL rejects, threshold-limiting level 2 output to hits  greater
       than  5	(level	2 in the Reject	RBL sub-section	is the client's	IP ad-
       dress / hostname	pair).	This makes for a very nice RBL offenders list,
       shown in	the sample output (note	the use	of the	unambiguous,  abbrevi-
       ated command line option	reject_reply_pat):

	   postfix-logwatch --reject_reply_pat '421 4..	5.. Warn' \
		   --nosummary --nodetail --limit 421rejectrbl='2 2::5'	file

	   300	 421 Reject RBL	---------------------------------------
	   243	    zen.spamhaus.org=127.0.0.2
	   106	       10.0.0.129	129.0.0.example.com
	    41	       192.168.10.70	hostx10.sample.net
	    40	       192.168.42.39	hostz42.sample.net
	    15	       10.1.1.152	dsl-10-1-1-152.example.us
	    14	       10.10.10.122	mail122.sample.com
	     7	       192.168.3.44	smalltime-spammer.example.com
		       ...
	    48	    zen.spamhaus.org=127.0.0.4
	    17	       10.29.124.92	10-29-124-92.adsl-static.sample.us
		       ...
	     8	    zen.spamhaus.org=127.0.0.11
		       ...
	     1	    zen.spamhaus.org=127.0.0.10
		       ...

   Running within Logwatch
       Note:  Logwatch	versions  prior	to 7.3.6, unless configured otherwise,
       required	the --print option to print to STDOUT instead of  sending  re-
       ports  via  email.   Since  version 7.3.6, STDOUT is the	default	output
       destination, and	the --print option has been replaced by	--output  std-
       out.  Check your	configuration to determine where report	output will be
       directed, and add the appropriate option	to the commands	below.

       To print	a summary report for today's Postfix log data:

	   logwatch --service postfix --range today --detail 1

       To print	a report for today's Postfix log data, with one	level
       of detail in the	Detailed section:

	   logwatch --service postfix --range today --detail 5

       To print	a report for yesterday,	with two levels	of detail in  the  De-
       tailed section:

	   logwatch --service postfix --range yesterday	--detail 6

       To  print  a report from	Dec 12th through Dec 14th, with	four levels of
       detail in the Detailed section:

	   logwatch --service postfix --range \
		   'between 12/12 and 12/14' --detail 8

       To print	a report for today, with all levels of detail:

	   logwatch --service postfix --range today --detail 10

       Same as above, but leaves long lines uncut:

	   logwatch --service postfix --range today --detail 11

ENVIRONMENT
       The postfix-logwatch program uses the following (automatically set) en-
       vironment variables when	running	under Logwatch:

       LOGWATCH_DETAIL_LEVEL
	      This is the detail level specified  with	the  Logwatch  command
	      line argument --detail or	the Detail setting in the ...conf/ser-
	      vices/postfix.conf configuration file.

       LOGWATCH_DEBUG
	      This is the debug	level specified	with the Logwatch command line
	      argument --debug.

       postfix_xxx
	      The Logwatch program passes all settings postfix_xxx in the con-
	      figuration  file	...conf/services/postfix.conf  to  the postfix
	      filter (which is	actually  named	 .../scripts/services/postfix)
	      via environment variable.

FILES
   Standalone mode
       /usr/local/bin/postfix-logwatch
	      The postfix-logwatch program

       /usr/local/etc/postfix-logwatch/postfix-logwatch.conf
	      The postfix-logwatch configuration file in standalone mode

   Logwatch mode
       /etc/logwatch/scripts/services/postfix
	      The Logwatch postfix filter

       /etc/logwatch/conf/services/postfix.conf
	      The Logwatch postfix filter configuration	file

SEE ALSO
       logwatch(8), system log analyzer	and reporter

README FILES
       README, an overview of postfix-logwatch
       Changes,	the version change list	history
       Bugs, a list of the current bugs	or other inadequacies
       Makefile, the rudimentary installer
       LICENSE,	the usage and redistribution licensing terms

LICENSE
       Covered under the included MIT/X-Consortium License:
       http://www.opensource.org/licenses/mit-license.php

AUTHOR(S)
       Mike Cappella

       The original postfix Logwatch filter was	written	by Kenneth Porter, and
       has had many contributors over the years.  They are entirely not	re-
       sponsible for any errors, problems or failures since the	current	au-
       thor's hands have touched the source code.

							   POSTFIX-LOGWATCH(1)

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