Re: NO_RELAYS spam

2010-07-01 Thread Randy Ramsdell

Karsten Bräckelmann wrote:

On Fri, 2010-06-18 at 23:54 +0200, Karsten Bräckelmann wrote:
  

Your issue is kind of weird and far less than common. Read, I cannot
recall coming across such a report *ever* on this list.

Thus, the collective list's lack of pin-pointing the cause with the info
given. The very reason we need you to dig deeper, provide debug logs,
header dumps at all stages -- or any evidence at all this might be SA.



Randy, any results? Did you find the cause for the issue?


  
At this time, I have not. Since the messages are originally scanned with 
all the headers in tact and not having the time, I will look into this 
later. I am still not sure how to go about troubleshooting this however.


Thanks,
RCR


Re: NO_RELAYS spam

2010-06-25 Thread Karsten Bräckelmann
On Fri, 2010-06-18 at 23:54 +0200, Karsten Bräckelmann wrote:
 Your issue is kind of weird and far less than common. Read, I cannot
 recall coming across such a report *ever* on this list.
 
 Thus, the collective list's lack of pin-pointing the cause with the info
 given. The very reason we need you to dig deeper, provide debug logs,
 header dumps at all stages -- or any evidence at all this might be SA.

Randy, any results? Did you find the cause for the issue?


-- 
char *t=\10pse\0r\0dtu...@ghno\x4e\xc8\x79\xf4\xab\x51\x8a\x10\xf4\xf4\xc4;
main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;il;i++){ i%8? c=1:
(c=*++x); c128  (s+=h); if (!(h=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}}



Re: NO_RELAYS spam

2010-06-21 Thread Matus UHLAR - fantomas
 On Thu, 17 Jun 2010, Randy Ramsdell wrote:
 The original email did not hit the NO_RELAYS rule but subsequent 
 runs through do hit this rule and it isn't on all email.

 On 17.06.10 12:13, Randy Ramsdell wrote:
 Hmmm, this mail came in and went straight to the users inbox.  1.   
 Postfix --- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4.   
 Dovecot-deliver

 Matus UHLAR - fantomas wrote:
 in this case, this problem belongs more to amavis mailing list, not to
 spamassassin one.

On 18.06.10 11:45, Randy Ramsdell wrote:
 I have no problem going over there but I am not convinced that the  
 Amavis program is the problem. The header field is changed by  
 spamassassin.

No, the format of headers showed that they were added by amavis, not
spamassassin. While amavis uses spamassassin functions, it creates different
headers.

 Doesn't the email simply get handed to Spamassasin by  
 Amavis where the headers are modified by spam report etc...?

usuallly not. 
-- 
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
WinError #9: Out of error messages.


Re: NO_RELAYS spam

2010-06-21 Thread Noel Jones
On Thu, Jun 17, 2010 at 11:13 AM, Randy Ramsdell rramsd...@activedg.com wrote:
 Charles Gregory wrote:

 On Thu, 17 Jun 2010, Randy Ramsdell wrote:

 The original email did not hit the NO_RELAYS rule but subsequent runs
 through do hit this rule and it isn't on all email.

 This sounds to me like you are 'resending' the mail from a local address
 to your mail server, rather than 'feeding' the original mail back into
 spamassassin. If this is the case, then you would naturally produce a new
 set of headers, and there would be no external relays, thus triggering the
 NO_RELAYS rule

 Hmmm, this mail came in and went straight to the users inbox.  1. Postfix
 --- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4. Dovecot-deliver
 So the problem is somewhere during the 2 ---  3  or step 3 or 4. Step 4 it
 is unlikely since Deliver simply send the file to a directory location.



Check your postfix header_checks file for any IGNORE rules.


Re: NO_RELAYS spam

2010-06-20 Thread David Morton
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On 6/17/10 11:13 AM, Randy Ramsdell wrote:

 Postfix --- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4.
 Dovecot-deliver

 No, I run a script on the mail server manually that simply moves the
 files. Then I check with spamassassin.

I wonder about step 4, or 5... what does this script move?  Is this an
MBOX format file, or Maildir?  Do you have a broken Sieve script?

It sounds to me like the original scoring is correct, as it does not hit
the NO_RELAYS rule, and that takes place in step 2.

- -- 
David Morton morto...@dgrmm.net

Morton Software  Design  http://www.dgrmm.net - Ruby on Rails
 PHP Applications
Maia Mailguard http://www.maiamailguard.com- Spam management
 for mail servers
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.7 (Darwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iD8DBQFMHhYQUy30ODPkzl0RAmoTAKCf3SvnhHdDQkRLo1lOBnKVemfRLQCeORRI
RqTt83Z8uNoKK76FDpZXVX8=
=8L/5
-END PGP SIGNATURE-


Re: NO_RELAYS spam

2010-06-20 Thread Martin Gregorie
On Sun, 2010-06-20 at 08:22 -0500, David Morton wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 On 6/17/10 11:13 AM, Randy Ramsdell wrote:
 
  Postfix --- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4.
  Dovecot-deliver
 
  No, I run a script on the mail server manually that simply moves the
  files. Then I check with spamassassin.
 
 I wonder about step 4, or 5... what does this script move?  Is this an
 MBOX format file, or Maildir?  Do you have a broken Sieve script?
 
 It sounds to me like the original scoring is correct, as it does not hit
 the NO_RELAYS rule, and that takes place in step 2.
 
An easy way to check what's in the message at steps 2 and 4 would be to
add an always_bcc directive to /etc/postfix/main.cf, which will send
a copy of every mail message that passes through Postfix to a nominated
mailbox. If amavis is being run as a Postfix service, i.e. using
sendmail to re-inject the scanned message into the Postfix mail queue,
then always_bcc will capture two copies of the message - (1) after
delivery to Postfix and (2) on redelivery to Postfix after its been
through amavis.

You can then use procmail and/or mboxgrep to search through the captured
messages.


Martin




Re: NO_RELAYS spam

2010-06-19 Thread Joseph Brennan


Randy Ramsdell rramsd...@activedg.com wrote:


Using sendmail without certain areguments will cause the To: field to
show up as undisclosed recipients:.



Nothing would make sendmail write a bogus header like that one. That is
not a valid email address. This is valid:

To: undisclosed recipients:;

It's the list syntax with a null list. The name of the list (undisclosed
recipients) has no   marks. The addresses in the list would be between
the colon and semicolon and each would be in   marks.

The malformed undisclosed recipients: is probably a good clue to tracking
down what software is involved. Most mail software would not write that.


Joseph Brennan
Columbia University Information Technology



Re: NO_RELAYS spam

2010-06-18 Thread Matus UHLAR - fantomas
 On Thu, 17 Jun 2010, Randy Ramsdell wrote:
 The original email did not hit the NO_RELAYS rule but subsequent runs 
 through do hit this rule and it isn't on all email.

 Charles Gregory wrote:
 This sounds to me like you are 'resending' the mail from a local  
 address to your mail server, rather than 'feeding' the original mail  
 back into spamassassin. If this is the case, then you would naturally  
 produce a new set of headers, and there would be no external relays,  
 thus triggering the NO_RELAYS rule

On 17.06.10 12:13, Randy Ramsdell wrote:
 Hmmm, this mail came in and went straight to the users inbox.  1.  
 Postfix --- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4.  
 Dovecot-deliver

in this case, this problem belongs more to amavis mailing list, not to
spamassassin one.

-- 
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
2B|!2B, that's a question!


Re: NO_RELAYS spam

2010-06-18 Thread Randy Ramsdell

Michelle Konzack wrote:

Hello Randy Ramsdell,

Am 2010-06-17 10:38:08, hacktest Du folgendes herunter:
  

We are getting a ton of this type and it scores low because there
are no received headers. What is this type of mail? I do not recall
seeing these in the past.



Hehehe... sounds like a new customer of me...

His mailserver was accessd through telnet using scripts to generate  the
spam messages, hence, it had no Received: headers...

Thanks, Greetings and nice Day/Evening
Michelle Konzack

  
Even so, all email should have a received header. In this case, the 
emails are sent to a content filter which will add received headers.


Re: NO_RELAYS spam

2010-06-18 Thread Randy Ramsdell

David B Funk wrote:

On Thu, 17 Jun 2010, Randy Ramsdell wrote:

  

get us added to lists, but Michael stated then, check the blacklists to
see how to get removed. as if we are already on a list. We are not.

Back to the main issue.

Here is an example pastbin. http://pastebin.com/mJqRPzkv

I found this message in the logs and it comes from yahoo. I don't think
I will focus on our forms because general mail also has its received
headers stripped. So the question is is what is doing this? I need help
to determine how to isolate this problem down. If it is postfix, I will
go to there lists etc... I have not implemented any rules that strip
received headers nor do I want to.

Thanks,
RCR



Given that it looks like something is taking the original To: header,
mutating it into X-Original-To: then adding that bogus
To: undisclosed recipients: and adding a

X-Virus-Scanned: amavisd-new at activedatatech.net header
I would guess that it's your amavisd-new process (or something in
its path) that is doing the header damaging.

Check the Amavisd site/list for trouble-shooting hints  tips.

There may be a way to put a 'tee' filter before  after amavisd in your
postfix confiuration.

  
However, all the emails without the received header field do not show 
this. It is in this specific pastbin example that you see this. Using 
sendmail without certain areguments will cause the To: field to show up 
as undisclosed recipients:.  


Re: NO_RELAYS spam

2010-06-18 Thread Randy Ramsdell

Matus UHLAR - fantomas wrote:

On Thu, 17 Jun 2010, Randy Ramsdell wrote:
  
The original email did not hit the NO_RELAYS rule but subsequent runs 
through do hit this rule and it isn't on all email.



  

Charles Gregory wrote:

This sounds to me like you are 'resending' the mail from a local  
address to your mail server, rather than 'feeding' the original mail  
back into spamassassin. If this is the case, then you would naturally  
produce a new set of headers, and there would be no external relays,  
thus triggering the NO_RELAYS rule
  


On 17.06.10 12:13, Randy Ramsdell wrote:
  
Hmmm, this mail came in and went straight to the users inbox.  1.  
Postfix --- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4.  
Dovecot-deliver



in this case, this problem belongs more to amavis mailing list, not to
spamassassin one.

  
I have no problem going over there but I am not convinced that the 
Amavis program is the problem. The header field is changed by 
spamassassin. Doesn't the email simply get handed to Spamassasin by 
Amavis where the headers are modified by spam report etc...?


Re: [sa] Re: NO_RELAYS spam

2010-06-18 Thread Charles Gregory

On Fri, 18 Jun 2010, Randy Ramsdell wrote:
I have no problem going over there but I am not convinced that the 
Amavis program is the problem. The header field is changed by 
spamassassin. Doesn't the email simply get handed to Spamassasin by 
Amavis where the headers are modified by spam report etc...?


The headers are missing.
Spamassassin records this fact, but is not responsible for it.
So find out what happens to your message BEFORE spamassassin is called.
Amavis is just a suggested starting place. And if it is to blame, someone 
on their list will reocgnize your query as soon as you post it.


Suggestion: After each step of your mail processing, if you can, save a 
copy of the mail to a log file. At least that way you get a quick overview 
of *which* component removes those headers


- C


Re: [sa] Re: NO_RELAYS spam

2010-06-18 Thread Randy Ramsdell

Charles Gregory wrote:

On Fri, 18 Jun 2010, Randy Ramsdell wrote:
I have no problem going over there but I am not convinced that the 
Amavis program is the problem. The header field is changed by 
spamassassin. Doesn't the email simply get handed to Spamassasin by 
Amavis where the headers are modified by spam report etc...?


The headers are missing.
Spamassassin records this fact, but is not responsible for it.
So find out what happens to your message BEFORE spamassassin is called.
Amavis is just a suggested starting place. And if it is to blame, 
someone on their list will reocgnize your query as soon as you post it.


Suggestion: After each step of your mail processing, if you can, save 
a copy of the mail to a log file. At least that way you get a quick 
overview of *which* component removes those headers


- C
Not exactly. Spamassassin sees the original messages including the 
received headers, then it modifies those headers with its information. I 
see these issues when running subsequent tests with spamassasin. So this 
is why I am not convinced that spamassassin is not causing the problem. 
Just clarifying the issue here. So it could be amavis, spamassassin or 
postfix but I am leaning towards spamassassin at the moment.


From an earlier post in which I wrote:  ( You see that the original 
scan saw the headers, but after delivery they were gone. )


Example:

Original rules hit.

X-Spam-Status: No, score=-0.394 tagged_above=- 
required=5tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, 
RCVD_IN_SORBS_WEB=0.619,URG_BIZ=1.585]


After running spamassassin -D

X-Spam-Status: No, score=4.2 required=5.0 
tests=AWL,BAYES_80,HTML_MESSAGE,NO_RECEIVED,NO_RELAYS,TO_MALFORMED,URG_BIZ 
autolearn=no version=3.2.5




Re: NO_RELAYS spam

2010-06-18 Thread Karsten Bräckelmann
On Fri, 2010-06-18 at 13:33 -0400, Randy Ramsdell wrote:
 Charles Gregory wrote:
  On Fri, 18 Jun 2010, Randy Ramsdell wrote:
   I have no problem going over there but I am not convinced that the 
   Amavis program is the problem. The header field is changed by 
   spamassassin. Doesn't the email simply get handed to Spamassasin by 
   Amavis where the headers are modified by spam report etc...?

No. While (I believe) Amavis actually can use spamd, it is most common
not using it. Amavis uses its own instance of SA, *similar* to what
spamd does. Also, in that case, SA doesn't add headers, but Amavis code
does.

Moreover, SA generally does not modify any headers but the Subject if
specifically configured to do so, and there are a very few rarely-used
options for rewriting (two) other headers. None of these ever harms
Received headers.


  Suggestion: After each step of your mail processing, if you can, save 
  a copy of the mail to a log file. At least that way you get a quick 
  overview of *which* component removes those headers
 
 Not exactly. Spamassassin sees the original messages including the 
 received headers, then it modifies those headers with its information. I 
 see these issues when running subsequent tests with spamassasin. So this 
 is why I am not convinced that spamassassin is not causing the problem. 
 Just clarifying the issue here. So it could be amavis, spamassassin or 
 postfix but I am leaning towards spamassassin at the moment.

I don't see how SA could do this, and believe it must be something else.
But hey, that's just an as uneducated guess as yours. And it doesn't get
us closer to the culprit.


 From an earlier post in which I wrote:  ( You see that the original 
 scan saw the headers, but after delivery they were gone. )

 Original rules hit.
 
 X-Spam-Status: No, score=-0.394 tagged_above=- 
 required=5tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, 
 RCVD_IN_SORBS_WEB=0.619,URG_BIZ=1.585]

Note that this header has been added by Amavis, *not* SA. Despite you
repeating it is SA adding the headers. And your claim of using spamd,
which is rather unlikely when using Amavis.

Are you really using spamd with Amavis?


 After running spamassassin -D
 
 X-Spam-Status: No, score=4.2 required=5.0 
 tests=AWL,BAYES_80,HTML_MESSAGE,NO_RECEIVED,NO_RELAYS,TO_MALFORMED,URG_BIZ 
 autolearn=no version=3.2.5

So, yeah -- we do know that the Received headers have been present when
the incoming mail initially has been passed to Amavis (and its SA
instance). What we do *not* know is, where exactly after that headers
get lost. Some verbose logging of headers before and after *all*
following stages will be necessary.

Also it is left kind of unclear, how and where you got the mail with the
headers lost for re-feeding to SA. From your description I assume you
got it by directly snipering a raw message file out of the Dovecot
Maildir backend storage. But that's just a guess, unless you can confirm
the exact steps you did that.


Your issue is kind of weird and far less than common. Read, I cannot
recall coming across such a report *ever* on this list.

Thus, the collective list's lack of pin-pointing the cause with the info
given. The very reason we need you to dig deeper, provide debug logs,
header dumps at all stages -- or any evidence at all this might be SA.

  guenther


-- 
char *t=\10pse\0r\0dtu...@ghno\x4e\xc8\x79\xf4\xab\x51\x8a\x10\xf4\xf4\xc4;
main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;il;i++){ i%8? c=1:
(c=*++x); c128  (s+=h); if (!(h=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}}



NO_RELAYS spam

2010-06-17 Thread Randy Ramsdell
We are getting a ton of this type and it scores low because there are no 
received headers. What is this type of mail? I do not recall seeing 
these in the past.


Thanks,
RCR


Re: NO_RELAYS spam

2010-06-17 Thread Michael Scheidell

On 6/17/10 10:38 AM, Randy Ramsdell wrote:
We are getting a ton of this type and it scores low because there are 
no received headers. What is this type of mail? I do not recall seeing 
these in the past.



its coming from you then :-(

or, your mail server is stripping out or not adding headers. RFC's 
require your mail server to add the header for the SMTP server that 
connected to you and add a header.


check your 'contact us' forms on your web site for holes.

then, check the blacklists to see how to get removed.


Thanks,
RCR



--
Michael Scheidell, CTO
Phone: 561-999-5000, x 1259
 *| *SECNAP Network Security Corporation

   * Certified SNORT Integrator
   * 2008-9 Hot Company Award Winner, World Executive Alliance
   * Five-Star Partner Program 2009, VARBusiness
   * Best Anti-Spam Product 2008, Network Products Guide
   * King of Spam Filters, SC Magazine 2008

__
This email has been scanned and certified safe by SpammerTrap(r). 
For Information please see http://www.secnap.com/products/spammertrap/
__  


Re: NO_RELAYS spam

2010-06-17 Thread Randy Ramsdell

Michael Scheidell wrote:

On 6/17/10 10:38 AM, Randy Ramsdell wrote:
We are getting a ton of this type and it scores low because there are 
no received headers. What is this type of mail? I do not recall 
seeing these in the past.



its coming from you then :-(

or, your mail server is stripping out or not adding headers. RFC's 
require your mail server to add the header for the SMTP server that 
connected to you and add a header.


check your 'contact us' forms on your web site for holes.

then, check the blacklists to see how to get removed.


Thanks,
RCR


Blacklists? What makes you think we are on a blacklist? As far as I can 
tell we are not on any lists.


Well looks like you are correct regarding the mail server stripping 
these. It makes no sense because we do not have rules that do this. The 
modifications done are done by spamassassin when it rewrites the header 
with a report and score.


The original email did not hit the NO_RELAYS rule but subsequent runs 
through do hit this rule and it isn't on all email.


Example:

Original rules hit.

X-Spam-Status: No, score=-0.394 tagged_above=- 
required=5tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, 
RCVD_IN_SORBS_WEB=0.619,URG_BIZ=1.585]


After running spamassassin -D

X-Spam-Status: No, score=4.2 required=5.0 
tests=AWL,BAYES_80,HTML_MESSAGE,NO_RECEIVED,NO_RELAYS,TO_MALFORMED,URG_BIZ 
autolearn=no version=3.2.5




Any ideas how this could happen?


Re: NO_RELAYS spam

2010-06-17 Thread Randy Ramsdell

Michael Scheidell wrote:

On 6/17/10 10:38 AM, Randy Ramsdell wrote:
We are getting a ton of this type and it scores low because there are 
no received headers. What is this type of mail? I do not recall 
seeing these in the past.



its coming from you then :-(

or, your mail server is stripping out or not adding headers. RFC's 
require your mail server to add the header for the SMTP server that 
connected to you and add a header.


check your 'contact us' forms on your web site for holes.

then, check the blacklists to see how to get removed.


Thanks,
RCR



I just checked our spam reports and this rule never hits. It is not 
locally generated email either or I can not find any coming from us. 
This is an strange issue and I am not where to begin to determine what 
is doing this.





Re: NO_RELAYS spam

2010-06-17 Thread Michael Scheidell

On 6/17/10 11:31 AM, Randy Ramsdell wrote:


I just checked our spam reports and this rule never hits. It is not 
locally generated email either or I can not find any coming from us. 
This is an strange issue and I am not where to begin to determine what 
is doing this.



if you have an insecure web form, contact form, 'email us' form, the 
spammers will use it to send spam.

MAYBE it is coming from that.

(and if it is, and spammers are using you, you will get on blacklists :-( )

do you need packet dumps? what about mail logs? does your mail server 
tell you where these emails are coming from?




--
Michael Scheidell, CTO
Phone: 561-999-5000, x 1259
 *| *SECNAP Network Security Corporation

   * Certified SNORT Integrator
   * 2008-9 Hot Company Award Winner, World Executive Alliance
   * Five-Star Partner Program 2009, VARBusiness
   * Best Anti-Spam Product 2008, Network Products Guide
   * King of Spam Filters, SC Magazine 2008

__
This email has been scanned and certified safe by SpammerTrap(r). 
For Information please see http://www.secnap.com/products/spammertrap/
__  


Re: NO_RELAYS spam

2010-06-17 Thread Randy Ramsdell

Michael Scheidell wrote:

On 6/17/10 11:31 AM, Randy Ramsdell wrote:


I just checked our spam reports and this rule never hits. It is not 
locally generated email either or I can not find any coming from us. 
This is an strange issue and I am not where to begin to determine 
what is doing this.



if you have an insecure web form, contact form, 'email us' form, the 
spammers will use it to send spam.

MAYBE it is coming from that.

(and if it is, and spammers are using you, you will get on blacklists 
:-( )


do you need packet dumps? what about mail logs? does your mail server 
tell you where these emails are coming from?




I understand how letting spammers send mail through our systems could 
get us added to lists, but Michael stated then, check the blacklists to 
see how to get removed. as if we are already on a list. We are not.


Back to the main issue.

Here is an example pastbin. http://pastebin.com/mJqRPzkv

I found this message in the logs and it comes from yahoo. I don't think 
I will focus on our forms because general mail also has its received 
headers stripped. So the question is is what is doing this? I need help 
to determine how to isolate this problem down. If it is postfix, I will 
go to there lists etc... I have not implemented any rules that strip 
received headers nor do I want to.


Thanks,
RCR



Re: NO_RELAYS spam

2010-06-17 Thread Charles Gregory

On Thu, 17 Jun 2010, Randy Ramsdell wrote:
The original email did not hit the NO_RELAYS rule but subsequent runs 
through do hit this rule and it isn't on all email.


This sounds to me like you are 'resending' the mail from a local address 
to your mail server, rather than 'feeding' the original mail back into 
spamassassin. If this is the case, then you would naturally produce a new 
set of headers, and there would be no external relays, thus triggering the 
NO_RELAYS rule



Original rules hit.
X-Spam-Status: No, score=-0.394 tagged_above=- 
required=5tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, 
RCVD_IN_SORBS_WEB=0.619,URG_BIZ=1.585]


Right there, we see 'RCVD_IN_SORBS'. This would not happen even if your 
own server was blacklisted with SORBS. There *was* a Received header for a 
relay, and somehow you have 'removed' it, either via a filtering mechanism 
outside SA, or by 'resending' or 'forwarding' the mail.



After running spamassassin -D


If this is what you used, then the forwarding and header rewriting must 
have occurred prior to this. Did someone 'forward' the spam to you as a 
complaint? Users often fail to properly forward with full headers 
enclosed.


- C


Re: NO_RELAYS spam

2010-06-17 Thread Randy Ramsdell

Charles Gregory wrote:

On Thu, 17 Jun 2010, Randy Ramsdell wrote:
The original email did not hit the NO_RELAYS rule but subsequent runs 
through do hit this rule and it isn't on all email.


This sounds to me like you are 'resending' the mail from a local 
address to your mail server, rather than 'feeding' the original mail 
back into spamassassin. If this is the case, then you would naturally 
produce a new set of headers, and there would be no external relays, 
thus triggering the NO_RELAYS rule


Hmmm, this mail came in and went straight to the users inbox.  1. 
Postfix --- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4. 
Dovecot-deliver
So the problem is somewhere during the 2 ---  3  or step 3 or 4. Step 4 
it is unlikely since Deliver simply send the file to a directory location.

Original rules hit.
X-Spam-Status: No, score=-0.394 tagged_above=- 
required=5tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001, 
RCVD_IN_SORBS_WEB=0.619,URG_BIZ=1.585]


Right there, we see 'RCVD_IN_SORBS'. This would not happen even if 
your own server was blacklisted with SORBS. There *was* a Received 
header for a relay, and somehow you have 'removed' it, either via a 
filtering mechanism outside SA, or by 'resending' or 'forwarding' the 
mail.



After running spamassassin -D


If this is what you used, then the forwarding and header rewriting 
must have occurred prior to this. Did someone 'forward' the spam to 
you as a complaint? Users often fail to properly forward with full 
headers enclosed.


- C


No, I run a script on the mail server manually that simply moves the 
files. Then I check with spamassassin.


Re: NO_RELAYS spam

2010-06-17 Thread Charles Gregory

On Thu, 17 Jun 2010, Randy Ramsdell wrote:
Hmmm, this mail came in and went straight to the users inbox.  1. Postfix 
--- 2. Amavis ( Spamd/Clamd)  --- 3. Postfix --- 4. Dovecot-deliver
So the problem is somewhere during the 2 ---  3  or step 3 or 4. Step 4 it 
is unlikely since Deliver simply send the file to a directory location.


I'm afraid I'm going to have to side with the people who suggested 
that something in the above steps is deleting headers. Postfix is pretty 
much guaranteed to add at least one Received header, even if it is just 
'Received from localhost'. so if you can guarantee that Step 1 is being 
done, then something in a later Step is removing headers.


Good luck with finding it! :)

- C


Re: NO_RELAYS spam

2010-06-17 Thread David B Funk
On Thu, 17 Jun 2010, Randy Ramsdell wrote:

 get us added to lists, but Michael stated then, check the blacklists to
 see how to get removed. as if we are already on a list. We are not.

 Back to the main issue.

 Here is an example pastbin. http://pastebin.com/mJqRPzkv

 I found this message in the logs and it comes from yahoo. I don't think
 I will focus on our forms because general mail also has its received
 headers stripped. So the question is is what is doing this? I need help
 to determine how to isolate this problem down. If it is postfix, I will
 go to there lists etc... I have not implemented any rules that strip
 received headers nor do I want to.

 Thanks,
 RCR

Given that it looks like something is taking the original To: header,
mutating it into X-Original-To: then adding that bogus
To: undisclosed recipients: and adding a
X-Virus-Scanned: amavisd-new at activedatatech.net header
I would guess that it's your amavisd-new process (or something in
its path) that is doing the header damaging.

Check the Amavisd site/list for trouble-shooting hints  tips.

There may be a way to put a 'tee' filter before  after amavisd in your
postfix confiuration.

-- 
Dave Funk  University of Iowa
dbfunk (at) engineering.uiowa.eduCollege of Engineering
319/335-5751   FAX: 319/384-0549   1256 Seamans Center
Sys_admin/Postmaster/cell_adminIowa City, IA 52242-1527
#include std_disclaimer.h
Better is not better, 'standard' is better. B{


Re: NO_RELAYS spam

2010-06-17 Thread Michelle Konzack
Hello Randy Ramsdell,

Am 2010-06-17 10:38:08, hacktest Du folgendes herunter:
 We are getting a ton of this type and it scores low because there
 are no received headers. What is this type of mail? I do not recall
 seeing these in the past.

Hehehe... sounds like a new customer of me...

His mailserver was accessd through telnet using scripts to generate  the
spam messages, hence, it had no Received: headers...

Thanks, Greetings and nice Day/Evening
Michelle Konzack

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