POSTFIX-LOGWATCH(1) 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.
Options 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
report. The delays percentiles report shows percentiles for
each of the 4 delivery latency times reported by Postfix (avail-
able 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 and d
is the amount of time spent delivering the message.
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
report will output the percentiles columns in the order you
specify.
--detail level
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 sec-
tion. At level 5 and above, the Detailed section, and any addi-
tional report sections are candidates for output. Each incre-
mental 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).
--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
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.
--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.
--nosummary
Disables the Summary section of the report.
--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
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 regu-
lar 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 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
--[no]show_sect_vars
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).
--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
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 ]
AttrError
Errors obtaining attribute data from service.
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.
CommunicationError
Postfix errors talking to one of its services.
ConcurrencyLimit
A Postfix server's connection conncurrency limit has been
reached or exceeded.
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.
EnvelopeSenderDomains
List of sending domains. (2 levels: envelope sender domain,
localpart)
EnvelopeSenders
List of envelope senders. (1 level: envelope sender)
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).
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.
MxError
Any one of several errors encounted during MX lookups.
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.
Prepended
Messages that triggered header_checks or body_checks PREPEND
action.
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.
RateLimit
A Postfix server's connection rate limit has been reached or
exceeded.
RblError
Lookup errors for RBLs.
Redirected
Messages that triggered access, header_checks or body_checks RE-
DIRECT 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.
###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.
###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_recipi-
ent_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.
Replaced
Messages that triggered header_checks or body_checks REPLACE
action.
ReturnedToSender
Messages returned to sender due to exceeding queue lifetime
(maximal_queue_lifetime).
SaslAuth
SASL authentication successes.
SaslAuthFail
SASL authentication failures.
SaslAuthRelay
SASL relay authentication successes.
Sent Messages sent via the SMTP delivery agent.
SentLmtp
Messages sent via the LMTP delivery agent.
SmtpConversationError
Errors 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.
TooManyErrors
Excessive errors during the SMTP/ESMTP dialog, causing Postfix
to drop the connection.
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
until 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:
o White space lines are ignored.
o Lines beginning with # are ignored
o Settings are of the form:
option = value
o Spaces or tabs on either side of the = character are ignored.
o Any value protected in double quotes will be case-preserved.
o All other content is reduced to lowercase (non-preserving, case
insensitive).
o All postfix-logwatch configuration settings must be prefixed with
"$postfix_" or postfix-logwatch will ignore them.
o When running under Logwatch, any values not prefixed with "$post-
fix_" are consumed by Logwatch; it only passes to postfix-logwatch
(via environment variable) settings it considers valid.
o The values True and Yes are converted to 1, and False and No are
converted to 0.
o Order of settings is not preserved within a configuration file
(since settings are passed by Logwatch via environment variables,
which have no defined order).
To include a command line option in a configuration file, prefix the
command line option name with the word "$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
occurs as follows: 1) The default configuration file is read if it
exists and no --config_file was specified on a command line. 2) Con-
figuration files are read and processed in the order found on the com-
mand 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 the Note above in the description of --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
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
...
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
reports 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
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
ENVIRONMENT
The postfix-logwatch program uses the following (automatically set)
environment 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.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
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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
responsible for any errors, problems or failures since the current
author's hands have touched the source code.
POSTFIX-LOGWATCH(1)