Re: [Exim] thousands and thousands of messages in the que..

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Συντάκτης: Colin Harford
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: Re: [Exim] thousands and thousands of messages in the que..
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Okay, so now, I have a little more time.


Sorry for the cat of the config, as I was on my way out the door, and
wanted to get things out to the list...


Going through the logs, I see this:

2003-01-30 23:35:44 SMTP connection from [61.254.207.176]:64311 (TCP/IP
connection count = 1)
2003-01-30 23:35:49 18eUmC-0000BU-00 SA: SAEximRunCond expand returned:
'1'
2003-01-30 23:35:49 18eUmC-0000BU-00 SA: check succeeded, running spamc
2003-01-30 23:35:56 18eUmC-0000BU-00 SA: SAEximRejCond expand returned:
'1'
2003-01-30 23:35:56 18eUmC-0000BU-00 SA: Writing message to
/var/spool/exim/SAtempreject/new/410-22003153165324265@???
2003-01-30 23:35:56 18eUmC-0000BU-00 SA: local_scan temporarily
rejected message: hits=11.1 required=7.1 trigger=10.0 (scanned in 7/7
secs). From <kocci1@???> (host=NULL [61.254.207.176]) for
ahn901222@???
2003-01-30 23:35:56 18eUmC-0000BU-00 temporarily rejected by
local_scan(): Heuristics guessed that this message was spam:\nhits=11.1
required=7.1 trigger=10.0, so it is temporarilty rejected.\nAdmins may
whitelist this and it may be accepted when you resubmit it.
2003-01-30 23:35:56 SMTP connection from (hanmir.com)
[61.254.207.176]:64311 closed by QUIT


This is exim-4.12 with sa-exim-2.2 (local_scan) [see
http://marc.merlins.org/linux/exim/sa.html].

So, I have tweaked a few settings of spamassasin. Since I did that mad
delete there hasn't been any more of those messages in my que...

CH



On Sunday, February 9, 2003, at 02:19 AM, Tim Jackson wrote:

> Hi Colin, on Sat, 8 Feb 2003 17:58:48 -0700 you wrote:
>
>> I don't have an open relay
>
> I rather suspect you do, albeit in a weird/limited kind of way.
>
>> 2003-02-08 17:25:13 18hS6v-0003la-00 => fossil3@???
>> 2003-02-08 17:25:20 18hS6o-00054l-00 => fosro@???
> [etc.]
>
> Hmm, certainly looks like someone's doing a dictionary attack or
> alphabetical spam run through your machine.


Ya, I'm guessing something like that
>
>> 2003-02-07 18:32:50 18hJrN-0004F5-00 <= 1775kocci1@???
>> H=(hanmir.com) [211.59.151.92]:64750 I=[142.179.166.201]:25 P=smtp
>> S=3158 id=118400-2200326813257593@??? T="=?ks_c_5601-1987?B?
>> JiM0MDsmIzQ0MzA1OyYjNDQyNTY7JiM0MTv==?=
>> \307\366\264\353\304\253\265\345
>> \275\305\303\273\307\317\274\274\277\344,
>> \307\366\264\353\304\253\265\345\270\270\300\307
>> \306\257\272\260\307\324" from <1775kocci1@???> for
>> falco93@???
>
> 211.59.151.92 seems to be the culprit. The \xxx stuff is encoded
> foreign
> language.
>
>> cat /opt/exim/configure
>
> No, don't just post it verbatim - don't include comments (other than
> short
> explanatory notes by yourself about why you've done a particular thing)
> when posting configs to the list, especially with bad wrapping! It
> makes
> it very slow/difficult to read through!
>
>> acl_check_rcpt:
>> accept hosts = :
>> accept hosts = enkidu.infinithost.com
>> accept hosts = ircd.lomag.net
>> accept hosts = therightapproach.com
>> accept hosts = ix.netcom.com
>> accept hosts = *.ualberta.ca
>> accept hosts = *.openbsd.org
>> accept hosts = *.freebsd.org
>> accept hosts = *.earthlink.com
>> accept hosts = *.chater.net
>> accept hosts = s142-179-166-202.ab.hsia.telus.net
>> accept hosts = *.infinithost.com
>> accept hosts = smtp.futureway.com
>> accept hosts = firefoxmarketing.com
>> accept hosts = cheerful-com.mr.outblaze.com
>> accept hosts = cheerful.com
>
> Woah. That looks nasty and is probably your problem. You *really* want
> to
> let any of these hosts (*.earthlink.com in particular?) use you as a
> relay? That's what you've just said.
>
> I'm guessing you were trying to say "don't run RBL checks/strict HELO
> checking/etc. against these hosts", but this is not the way to do it.
> Well, not at this point in the config file anyway. What you've just
> said
> is "accept from these hosts, and skip any further checking [including
> checking if the mail is going to a local_domain])".
>
> You'd be better setting up a hostlist "friendly_hosts" or something and
> then using that as a negative condition for checks you want skipped for
> them.
>
>> deny dnslists =        bl.spamcop.net : \
>>          relays.ordb.org : \
>>          dnsbl.njabl.org : \
>>          blackholes.wirehub.net : \
>>          relays.visi.com : \
>>          sbl.spamhaus.org : \
>> deny  message  = Sender's domain is listed at $dnslist_domain

>
> This is not relevant to your open relay problem, but I don't think you
> intended the second 'deny'; it should look something vaguely like this:
>
> deny  message  = whatever
>       dnslists = blah : foo

>
> And, incidentally, for the lists that you've chosen, it's not the
> sender's
> domain that's listed, it's the sender's IP. You might want to revise
> your
> error message to avoid confusion.
>
> Tim
>
> --
>
> ## List details at http://www.exim.org/mailman/listinfo/exim-users
> Exim details at http://www.exim.org/ ##
>
>
>

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