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Thread: Re: Spam features




Re: Spam features
country flaguser name
New Zealand
2007-04-24 18:04:52
Neil,

I agree there is a problem. I understand SPF to be MX
related. The IP you
saw was the client machine, running outlook 12 and sending
through our
internal server (to an internal account). The internal
server should not be
checking our clients for SPF records (so I've set something
wrong - but
what?). The SPF records are for servers checking to see if
mail sent to
them is from our gateway server. Not what client can send
mail through
surgemail.

How do I clear this confusion up? I have smtp authentication
active...

----- Original Message -----
>Kevin
>
>If this mail is all internal to your network, then there
is something 
>wrong with your SPF records.
>
>Note that one of the biggest hits in the spam score is
"SPF Fail=8.0".
>
>The SPF record for cnc.bc.ca only allows the declared
MXes and fails all 
>others. The declared MX is avas.cnc.bc.ca 142.27.70.214.
But the 
>rejected mail is showing an IP of 142.27.64.23.
>
>So either I am very confused about what goes where, or
something is 
>wrong in SPFville.
>
>Neil
>
>Kevin W. Gagel wrote:
>> Not his account but one of the recipients did have
a very low setting
>> that was causing it to be rejected. Thanks for
pointing me in the right
>> direction.
>> 
>> ----- Original Message -----
>> 
>>> That would be the spam settings option for
their account.  They 
>>> probably set their reject option on or too
low.
>>>
>>> On Apr 23, 2007, at 2:37 PM, Kevin W. Gagel
wrote:
>>>
>>>> ----- Original Message -----
>>>>> Kevin W. Gagel wrote:
>>>>>> I activated the spam features for
my users a couple of months back 
>>>>>> and
>>>>>> have just come accross a complaint
that a user cannot send email to
>>>>>> another user. The system is
detecting his message as a spam message 
>>>>>> and
>>>>>> will not allow it.
>>>>>>
>>>>>> How do I go about tracking down the
root cause of the problem?
>>>>>>
>>>>> Is the user authenticating to your
server? If not, that could flag
>>>>> the email as fraudulent depending on
other settings you may have 
>>>>> configured.
>>>> The user is using outlook 2003. I just had
him do a check for mail and
>>>> then
>>>> try sending it again. It still fails.
>>>>
>>>> Here is what the log says on this attempt
to send:
>>>> 23 14:33:17[199934] Failed 142.X.X.23
<XXXcnc.bc.ca> <BBBcnc.bc.ca> 
>>>> 3079
>>>> <001401c785ef$0d331d00$27995700$bc.ca>
"[142.X.X.23] Bounced *******:
>>>> 7.488889 From3consonants=0.5, SPF Fail=8.0,
X-Verify-SMTP present=0.6,
>>>> Aspam=-1.6"
>>>> 23 14:33:17[199934] Failed 142.X.X.23
<XXXcnc.bc.ca> <CCCcnc.bc.ca> 
>>>> 3079
>>>> <001401c785ef$0d331d00$27995700$bc.ca>
"[142.27.64.23] Message looks 
>>>> like
>>>> spam, sorry not wanted here q=199934"
>>>>
>>>> In all there were four recipients, the logs
indicate a problem only 
>>>> with
>>>> the two that were on the To: line. The two
that were on the CC line 
>>>> are not
>>>> mentioned in the logs.


=================================
Kevin W. Gagel
Network Administrator
Information Technology Services
(250) 562-2131 local 448
My Blog:
http://mail.cnc.bc.
ca/blogs/gagel

------------------------------------------------------------
-------
The College of New Caledonia, Visit us at http://www.cnc.bc.ca
Virus scanning is done on all incoming and outgoing email.
Anti-spam information for CNC can be found at http://avas.cnc.bc.ca
------------------------------------------------------------
-------


Re: Spam features
country flaguser name
New Zealand
2007-04-24 18:50:17
Kevin

I'm shooting in the dark here, because I don't know how you
have your 
gateway machine and SurgeMail set up.

My understanding is that for things to work their best,
Netwin 
recommends having SM as the gateway machine - the one facing
the internet.

You may need to tweak the SPF settings, and the ones I would
look at are 
g_spf_enforce_local and g_spf_skip. But really, the best bet
would be to 
send your ini file to Netwin and have them comment on the
SPF related 
settings.

Wish I could be more helpful!

Neil

Kevin W. Gagel wrote:
> Neil,
> 
> I agree there is a problem. I understand SPF to be MX
related. The IP you
> saw was the client machine, running outlook 12 and
sending through our
> internal server (to an internal account). The internal
server should not be
> checking our clients for SPF records (so I've set
something wrong - but
> what?). The SPF records are for servers checking to see
if mail sent to
> them is from our gateway server. Not what client can
send mail through
> surgemail.
> 
> How do I clear this confusion up? I have smtp
authentication active...
> 
> ----- Original Message -----
>> Kevin
>>
>> If this mail is all internal to your network, then
there is something 
>> wrong with your SPF records.
>>
>> Note that one of the biggest hits in the spam score
is "SPF Fail=8.0".
>>
>> The SPF record for cnc.bc.ca only allows the
declared MXes and fails all 
>> others. The declared MX is avas.cnc.bc.ca
142.27.70.214. But the 
>> rejected mail is showing an IP of 142.27.64.23.
>>
>> So either I am very confused about what goes where,
or something is 
>> wrong in SPFville.
>>
>> Neil
>>
>> Kevin W. Gagel wrote:
>>> Not his account but one of the recipients did
have a very low setting
>>> that was causing it to be rejected. Thanks for
pointing me in the right
>>> direction.
>>>
>>> ----- Original Message -----
>>>
>>>> That would be the spam settings option for
their account.  They 
>>>> probably set their reject option on or too
low.
>>>>
>>>> On Apr 23, 2007, at 2:37 PM, Kevin W. Gagel
wrote:
>>>>
>>>>> ----- Original Message -----
>>>>>> Kevin W. Gagel wrote:
>>>>>>> I activated the spam features
for my users a couple of months back 
>>>>>>> and
>>>>>>> have just come accross a
complaint that a user cannot send email to
>>>>>>> another user. The system is
detecting his message as a spam message 
>>>>>>> and
>>>>>>> will not allow it.
>>>>>>>
>>>>>>> How do I go about tracking down
the root cause of the problem?
>>>>>>>
>>>>>> Is the user authenticating to your
server? If not, that could flag
>>>>>> the email as fraudulent depending
on other settings you may have 
>>>>>> configured.
>>>>> The user is using outlook 2003. I just
had him do a check for mail and
>>>>> then
>>>>> try sending it again. It still fails.
>>>>>
>>>>> Here is what the log says on this
attempt to send:
>>>>> 23 14:33:17[199934] Failed 142.X.X.23
<XXXcnc.bc.ca> <BBBcnc.bc.ca> 
>>>>> 3079
>>>>> <001401c785ef$0d331d00$27995700$bc.ca>
"[142.X.X.23] Bounced *******:
>>>>> 7.488889 From3consonants=0.5, SPF
Fail=8.0, X-Verify-SMTP present=0.6,
>>>>> Aspam=-1.6"
>>>>> 23 14:33:17[199934] Failed 142.X.X.23
<XXXcnc.bc.ca> <CCCcnc.bc.ca> 
>>>>> 3079
>>>>> <001401c785ef$0d331d00$27995700$bc.ca>
"[142.27.64.23] Message looks 
>>>>> like
>>>>> spam, sorry not wanted here
q=199934"
>>>>>
>>>>> In all there were four recipients, the
logs indicate a problem only 
>>>>> with
>>>>> the two that were on the To: line. The
two that were on the CC line 
>>>>> are not
>>>>> mentioned in the logs.


-- 
Neil Herber
Corporate info at http://www.eton.ca/


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