DOKK / manpages / debian 12 / logwatch / postfix-logwatch.1.en
POSTFIX-LOGWATCH(1) General Commands Manual POSTFIX-LOGWATCH(1)

postfix-logwatch - A Postfix log parser and analysis utility



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










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


This utility can be used as a standalone program, or as a Logwatch
    filter 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,
    hierarchically-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 representations 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 Postfix access
  check WARN action was logged 146 times, and a total of 68.310 megabytes
  (71,628,177 bytes) were accepted into the Postfix system, 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 levels, 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 illustrates 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.






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





  

  

  

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

  

  
Output debug information during the operation of postfix-logwatch.
      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 report. 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 (including DNS, HELO and TLS) and
      d is the amount of time spent delivering the message. The total
      delay shown comes from the delay= 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.

    

  

  

  
Specifies the percentiles to be used in the message delays percentiles
      report. The percentiles p1, p2, ... range from 0 to
      100, inclusively. The order of the list is not sorted - the report will
      output the percentiles columns in the order you specify.

  

  
Sets the maximum detail level for postfix-logwatch to level.
      This option is global, overriding any other output limiters described
      below.
    
The postfix-logwatch utility produces a Summary
        section, a Detailed 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 increase 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).

  

  

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

  

  
Ignore log lines that contain the postfix service name
      postfix/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).

  

  

  
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.

  

  

  

  
Sets the level limiter limiter with the specification
      levelspec.

  

  
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 default), long lines will be truncated according to
      max_report_width. Setting style to wrap will wrap
      lines longer than max_report_width such that left column hit counts
      are not obscured. This option takes precedence over the line style implied
      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.

  

  
Disables the Detailed section of the report, and all supplemental
      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 sections to create specific
      reports.

  
--[no]summary

  

  

  
Enables (disables) displaying of the the Summary section of the
      report. The variable postfix_Show_Summary in used in a configuration
    file.

  

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

  

  
Specifies the list of reject reply patterns used to create reject 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 subcode; 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,
      regardless 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
        transmission channel closures from 45x errors (eg. 450 mailbox
        unavailable, 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_patterns within a configuration file.

  

  
--[no]sect_vars

  

  

  
Enables (disables) supplementing each Detailed section title with
      the name of that section's level limiter. The name displayed is the
      command line option (or configuration file variable) used to limit that
      section's output. With the large number of level limiters available in
      postfix-logwatch, this a convenient mechanism for determining
      exactly which level limiter affects a section.

  

  
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-logwatch;
      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

  

  

  
Enables (disables) display of the postfix-generated name of 'unknown' in
      formated IP/hostname pairs in Detailed reports. Default:
    enabled.

  

  
Print postfix-logwatch version information.










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 example, 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 ]





  

  
Errors obtaining attribute data from service.

  

  
Messages that triggered access, header_checks or body_checks BCC action.
      (postfix 2.6 experimental branch)

  

  

  

  
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.

  

  
Regrouping by client host IP address of all 5xx (permanent) reject
      variants.

  

  
Postfix errors talking to one of its services.

  

  
Anvil rate or concurrency limits.

  

  
Connections made to the smtpd server.

  

  
Connections lost to the smtpd server.

  

  
Connections lost during smtp communications with remote MTA.

  

  
Failures reported by smtp when connecting to remote MTA.

  

  
Warnings noted when binary database map file requires postmap
      update from newer source file.

  

  

  

  
Message delivery deferrals. A single deferred message will have one
      or more deferrals many times.

  

  
Address verification indicates recipient address is deliverable.

  

  
Number of messages handed-off to a delivery agent such as local or
      virtual.

  

  
Messages that triggered access, header_checks or body_checks DISCARD
      action.

  

  
Any one of several errors encountered during DNS lookups.

  

  
List of sending domains. (2 levels: envelope sender domain,
    localpart)

  

  
List of envelope senders. (1 level: envelope sender)

  

  
Postfix general error messages.

  

  
Fatal main.cf or master.cf configuration errors.

  

  
Postfix general fatal messages.

  

  
Messages that triggered access, header_checks or body_checks FILTER
      action.

  

  
Messages forwarded by MDA for one address class to another (eg. local
      -> virtual).

  

  
XXXXXXXXXXX

  

  
Messages that were placed on hold by postsuper, or triggered by access,
      header_checks or body_checks HOLD action.

  

  
Invalid hostname detected.

  

  
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).

  

  
Illegal syntax in an email address provided during the MAIL FROM or RCPT
      TO dialog.

  

  
Any LDAP errors during LDAP lookup.

  

  
An MX lookup for the best mailer to use to deliver mail would result in a
      sending to ourselves.

  

  
Problem with an access table map that needs correcting.

  

  
Postfix encountered an error when trying to create a message file
      somewhere in the spool directory.

  

  
A hostname was found that was numeric, instead of alphabetic.

  

  
Postfix general panic messages.

  

  
Workarounds were enabled to avoid remote Cisco PIX SMTP
      "fixups".

  

  
Summarization of policyweight/policydweight results.

  

  
Summarization of PolicySPF results.

  

  
Summarization of Postgrey results.

  

  
Summarization of 2.7's postscreen and verify services.

  

  
Summarization of 2.7's dnsblog service.

  

  
Messages that triggered header_checks or body_checks PREPEND action.

  

  
Postfix services that exited unexpectedly.

  

  
A Postfix service has reached or exceeded the maximum number of processes
      allowed.

  

  
Problems writing a Postfix queue file.

  

  
Lookup errors for RBLs.

  

  
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_restrictions).

  
###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 rejects, but
      an extended 5.7.1 DSN is provided. These rejects are forced into the
      generic 5xx rejects group. If you redefine reject_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_recipient_restrictions).

  
###RejectRelay

  
Messages rejected by relay access controls.

  
###RejectSender

  
Messages rejected by sender access controls
    (smtpd_sender_restrictions).

  
###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.

  

  
Messages that triggered header_checks or body_checks REPLACE action.

  

  
Messages returned to sender due to exceeding queue lifetime
      (maximal_queue_lifetime).

  

  
SASL authentication successes, includes SASL method, username, and sender
      when present.

  

  
SASL authentication failures.

  

  
Messages sent via the SMTP delivery agent.

  

  
Messages sent via the LMTP delivery agent.

  

  
Errors during the SMTP/ESMTP dialog.

  

  
Protocol violation during the SMTP/ESMTP dialog.

  

  
Errors during Postfix server startup.

  

  
Connections to smtpd that timed out.

  

  
TLS client connections.

  

  
TLS communication offered.

  

  
TLS server connections.

  

  
Unverified TLS connections.

  

  
Address verification indicates recipient address is undeliverable.

  

  
Messages that triggered access, header_checks or body_checks WARN
    action.

  

  
Warnings regarding Postfix configuration errors.

  

  
Postfix general warning messages.
    

  














The Detailed section of the report consists of a number of
    sub-sections, 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
    hammer) 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
    examples:




    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 appropriately.
    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:



  

  
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.

  

  
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 compatibility; users are
      encouraged to use the syntax below).

  

  
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 specified 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, specific 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 until detail is at least 5).


See the EXAMPLES section for usage scenarios.








Postfix-logwatch can read configuration settings from a
    configuration file. Essentially, any command line option can be placed into
    a configuration 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 configuration 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
      insensitive).
    • 
  
  • 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
      "$postfix_" 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 configuration 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 occurs 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
    notable 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.










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.














Note: postfix-logwatch reads its log data from one
    or more named Postfix log files, or from STDIN. For brevity, where required,
    the examples 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
    address / hostname pair). This makes for a very nice RBL offenders list,
    shown in the sample output (note the use of the unambiguous, abbreviated
    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


            ...










Note: Logwatch versions prior to 7.3.6, unless configured
    otherwise, required the --print option to print to STDOUT instead of
    sending reports via email. Since version 7.3.6, STDOUT is the default output
    destination, and the --print option has been replaced by --output
    stdout. 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
    Detailed 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
















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



  

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

  

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

  

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















  
/usr/local/bin/postfix-logwatch

  
The postfix-logwatch program

  
/usr/local/etc/postfix-logwatch.conf

  
The postfix-logwatch configuration file in standalone mode











  
/etc/logwatch/scripts/services/postfix

  
The Logwatch postfix filter

  
/etc/logwatch/conf/services/postfix.conf

  
The Logwatch postfix filter configuration file












logwatch(8), system log analyzer and reporter








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








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








Mike Cappella



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