gb-mail at sbgnet
May 5, 2008, 7:36 AM
Post #3 of 5
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On 5/2/2008 7:43 PM, W B Hacker wrote:
> Gordon wrote:
>> I have a need for more detail in my log. We are using exim as an
>> inbound relay and pre-filtering before delivering to our mail system.
>>
>> The reject.log file is very useful but would be more helpful if it had
>> CLEAN messages logged also. Now obviously CLEAN messages should not be
>> part of reject.log so the best solution would be a log just for
>> X-Spam-Report (SPAM and CLEAN)
>>
>> Searching for these terms is pretty rough since they are in so many conf
>> files uploaded....
>>
>> --snip--
>> warn add_header = X-Spam-Score: $spam_score ($spam_bar)\n\
>> X-Spam-Report: $spam_report
>> deny condition = ${if >{$spam_score_int}{90} {1}}
>> message = Your message was RejecteD as Spam
>> accept
>> --snip--
>>
>> I know log size will increase, but I do not expect the logs to grow more
>> than %33 considering yesterday we
>> rejected 167,000 Unknown User
>> rejected 133,000 spam
>> and
>> delivered 91,000 messages
>>
>>
>>
>>
>
> Not a problem. You have a number of available tools, some seldom used:
>
> 1) log_selector =
>
> lets you activate or supress various 'built-in' details - listed in docs.
>
> 2) log_message =
>
> activates when an acl triggers
>
> 3) logwrite =
>
> activates when an acl is traversed - triggered or not
>
> 4) adding a specifier as to *which* log, as in the use of :panic: below
>
> logwrite = :panic:,VRL,$sender_host_address,$tod_epoch
>
> Lets you put things into the log *you* choose, even if contrarian to
> inbuilt log assignment.
>
> N.B.
>
> In a 'healthy' Exim environment, the 'panic' log is the least used,
> hence not a bad place to do custom writes for cron'ed 'harvesting'.
>
> Other options include writes to other-than the bespoke logfiles or to
> SQL DB's, as in:
>
> set acl_c19 = ${lookup pgsql{INSERT into ... <whatever>
>
>
> SQL brings its own set of overhead & 'challenges', responsibility to
> admin - but can be read-from or written-to from *anywhere* in Exim -
> main section thru acl's thru router/transport sets.
>
> HTH,
>
> Bill
>
>
Thank you!
4) adding a specifier as to *which* log, as in the use of :panic: below
logwrite = :panic:,VRL,$sender_host_address,$tod_epoch
Lets you put things into the log *you* choose, even if contrarian to
inbuilt log assignment.
Works with two caveats, and a question.
Question the VRL in the example, I can not find any detail so I assume
it is simple text...
1)
I got excited about choosing my own log and only succeed in logging to
panic.log When I choose from defined exim logs it works as expected.
...:saheaders: and :/var/log/exim/saheaders: both failed...
Success logging to reject.log, some messages may not in fact be rejects
but... If I put the messages in main.log my logwatch scripts will never
finish. As it stands they take up to 12 hours to run now.
2)
I have not weighed the impact of this yet, but I am leaning towards
leaving it as is...
logwrite =:reject:X-Spam-Score: $spam_score, X-Spam-Report:
$spam_report
is writing the entire entry on a single line. Useful for grep, not so
useful for reading. Example entry below
2008-05-05 10:22:51 1Jt1aa-000170-7V X-Spam-Score: 17.8, X-Spam-Report:
----\n Content preview: Our researchers have made something that will
keep you ahead\n of the game! Perform the most amazing change in your
body! http://likamen.com/\nfor the second time. After the controversial
winningleg kept him out of the\n main squad for nearly a
year.school's website, the lockdown was canceled.\n Our researchers
have made something that will keep you ahead of the game!\n Perform
the most amazing change in your body! [...] \n ----\n Content
analysis details: (17.8 points, 29.0 required)\n ----\n pts
rule name description\n ---- ----------------------
--------------------------------------------------\n 2.0
DATE_IN_PAST_96_XX Date: is 96 hours or more before Received: date\n
0.0 UNPARSEABLE_RELAY Informational: message has unparseable
relay lines\n 0.1 HTML_50_60 BODY: Message is 50% to 60%
HTML\n 0.0 HTML_MESSAGE BODY: HTML included in message\n
0.0 BAYES_50 BODY: Bayesian spam probability is 40 to
60%\n [score: 0.5000]\n 3.8 URIBL_AB_SURBL Contains
an URL listed in the AB SURBL blocklist\n [URIs: likamen.com]\n 4.1
URIBL_JP_SURBL Contains an URL listed in the JP SURBL
blocklist\n [URIs: likamen.com]\n 3.0 URIBL_OB_SURBL
Contains an URL listed in the OB SURBL blocklist\n [URIs:
likamen.com]\n 4.5 URIBL_SC_SURBL Contains an URL listed in
the SC SURBL blocklist\n [URIs: likamen.com]\n 0.3 MIME_
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