Re: OT: Paradise.net shooting itself in the foot

2007-11-21 Thread Wesley Parish
Well, for what it's worth, it is used, by some - I got really pissed off at 
some 419er back in 2003, and attempted to spoof the email header so the 419er 
wouldn't get the idea that my email was active; I put myself somewhere in 
Argentina.  It got bounced, with a comment that the alleged header and the 
actual address didn't match.

So it's apparently possible; but if so, it would be greatly appreciated if it 
was one more obstacle for spam-phishers ...

Wesley Parish

On Wednesday 21 November 2007 10:07, Steve Holdoway wrote:
 On Wed, 21 Nov 2007 09:53:52 +1300

 Jim Cheetham [EMAIL PROTECTED] wrote:
  On Nov 20, 2007 10:52 PM, Steve Holdoway [EMAIL PROTECTED] wrote:
   All headers bar the last one can be extremely simply faked, so they are
   pretty useless to use to identify the email's provenance. Because of
   this, some ISPs are clamping down on this. The Sender Policy Framework
   ( eg http://www.openspf.org/ ) is an attempt to cut down on spam. This
   defines where an email has to be sent from to be treated as valid.
 
  Surely SPF doesn't cut down on spam, it merely cuts down on address
  spoofing?
 
  Admittedly a lot of spam uses spoofed addresses at the moment ... but
  there's not a direct relationship _per se_ between an address-spoofed
  message and a spam message ...
 
  -jim

 OK, call it a beneficial side effect if you want. In real world terms it
 does help.

 Steve

-- 
Clinersterton beademung, with all of love - RIP James Blish
-
Gaul is quartered into three halves.  Things which are 
impossible are equal to each other.  Guerrilla 
warfare means up to their monkey tricks. 
Extracts from Schoolboy Howlers - the collective wisdom 
of the foolish.
-
Mau e ki, he aha te mea nui?
You ask, what is the most important thing?
Maku e ki, he tangata, he tangata, he tangata.
I reply, it is people, it is people, it is people.


Re: OT: Paradise.net shooting itself in the foot

2007-11-20 Thread Nick Rout
I think you misunderstand email. Why shouldn't I be able to send an email
with my paradise return address from a server in timbuctoo? I can. And I
should be able to.


On Tue, November 20, 2007 8:34 pm, Wesley Parish wrote:
 What I'm expecting them to have is some filter that looks at the purported
 address of the sender and at the actual history of the email, and dumps it
 if
 they are incompatible; I expect them to protect their own identity and
 thus
 their reputation even more than some other poor sod's, because their
 business
 lives or dies by their reputation.

 By not doing this, they are in fact permitting infringement of what is
 called goodwill, and goodwill isn't something to lightly throw away..

 Wesley Parish

 On Tuesday 20 November 2007 00:36, Volker Kuhlmann wrote:
 On Mon 19 Nov 2007 20:57:52 NZDT +1300, Wesley Parish wrote:
  This isn't the first day I've received an email purporting to be from
  Paradise.net requiring me to verify my webmail/email details to
 prevent
  said account from being closed down.

 Yeah, I've been getting that hogwash too. The text isn't even a laugh
 ... just enter your username and password here. Yawn. And Telstraclear
 have a big warning up someplace.

  I wish they'd get their act together.  Permitting this sort of
  infringement makes them look very, very bad.

 Why do you assume they permit it? The one I looked at came from optusnet
 in Oz. They could make an effort to have that account shut down, but
 more likely they wouldn't be able to keep up. The only thing they could
 do is train their filters better. Other than that, it's easy to
 impersonate someone, spammers have been doing it for years.

 Volker

 --
 Clinersterton beademung, with all of love - RIP James Blish
 -
 Gaul is quartered into three halves.  Things which are
 impossible are equal to each other.  Guerrilla
 warfare means up to their monkey tricks.
 Extracts from Schoolboy Howlers - the collective wisdom
 of the foolish.
 -
 Mau e ki, he aha te mea nui?
 You ask, what is the most important thing?
 Maku e ki, he tangata, he tangata, he tangata.
 I reply, it is people, it is people, it is people.




-- 
Nick Rout



Re: OT: Paradise.net shooting itself in the foot

2007-11-20 Thread Steve Holdoway
On Tue, 20 Nov 2007 22:31:09 +1300 (NZDT)
Nick Rout [EMAIL PROTECTED] wrote:

 I think you misunderstand email. Why shouldn't I be able to send an email
 with my paradise return address from a server in timbuctoo? I can. And I
 should be able to.
 
All headers bar the last one can be extremely simply faked, so they are pretty 
useless to use to identify the email's provenance. Because of this, some ISPs 
are clamping down on this. The Sender Policy Framework ( eg 
http://www.openspf.org/ ) is an attempt to cut down on spam. This defines where 
an email has to be sent from to be treated as valid. 

For example I've set up the corporate mail as follows:
 
[EMAIL PROTECTED]:~# dig txt firetrust.com

;  DiG 9.4.1-P1  txt firetrust.com
;; global options:  printcmd
;; Got answer:
;; -HEADER- opcode: QUERY, status: NOERROR, id: 23367
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;firetrust.com. IN  TXT

;; ANSWER SECTION:
firetrust.com.  3600IN  TXT v=spf1 a mx ~all

says that all valid mail from firetrust.com must originate from our mail server 
( the dns a or mx record - same in this case), so all of us send out our mail 
via that server, authenticating via tls ( the alternative open relay was vetoed 
for some reason (: ).

This is about the best you, as the sender of email, can do, if you have access 
to manipulate dns in this way. It's well flawed, and not that difficult to 
beat, but it slows down the spammer a bit. It's just a case of attempting to 
identify you that bit better, as currently 95% of all mail is spam. Used 
wisely, it can help ( for example, when out in the field, you can state that 
your emails can use google mail, or yahoo, etc... ). Others are providing 
similar ideas, but spf seems to be the most popular atm.

Just my $0.02,


Steve
-- 
Steve Holdoway [EMAIL PROTECTED]


Re: OT: Paradise.net shooting itself in the foot

2007-11-20 Thread Volker Kuhlmann
On Tue 20 Nov 2007 22:31:09 NZDT +1300, Nick Rout wrote:

 I think you misunderstand email. Why shouldn't I be able to send an email
 with my paradise return address from a server in timbuctoo? I can. And I
 should be able to.

True. But Paradise ISP has no good excuse doing so, or it'd be time to
find a better ISP. However anything can be forged, incl From:, so the
filtering problem is as hard as with any other spam. Which means
Paradise is doing about as well as can be hoped.

Volker

-- 
Volker Kuhlmann is list0570 with the domain in header
http://volker.dnsalias.net/ Please do not CC list postings to me.


Re: OT: Paradise.net shooting itself in the foot

2007-11-20 Thread Jim Cheetham
On Nov 20, 2007 10:52 PM, Steve Holdoway [EMAIL PROTECTED] wrote:
 All headers bar the last one can be extremely simply faked, so they are 
 pretty useless to use to identify the email's provenance. Because of this, 
 some ISPs are clamping down on this. The Sender Policy Framework ( eg 
 http://www.openspf.org/ ) is an attempt to cut down on spam. This defines 
 where an email has to be sent from to be treated as valid.

Surely SPF doesn't cut down on spam, it merely cuts down on address spoofing?

Admittedly a lot of spam uses spoofed addresses at the moment ... but
there's not a direct relationship _per se_ between an address-spoofed
message and a spam message ...

-jim


Re: OT: Paradise.net shooting itself in the foot

2007-11-20 Thread Steve Holdoway
On Wed, 21 Nov 2007 09:53:52 +1300
Jim Cheetham [EMAIL PROTECTED] wrote:

 On Nov 20, 2007 10:52 PM, Steve Holdoway [EMAIL PROTECTED] wrote:
  All headers bar the last one can be extremely simply faked, so they are 
  pretty useless to use to identify the email's provenance. Because of this, 
  some ISPs are clamping down on this. The Sender Policy Framework ( eg 
  http://www.openspf.org/ ) is an attempt to cut down on spam. This defines 
  where an email has to be sent from to be treated as valid.
 
 Surely SPF doesn't cut down on spam, it merely cuts down on address spoofing?
 
 Admittedly a lot of spam uses spoofed addresses at the moment ... but
 there's not a direct relationship _per se_ between an address-spoofed
 message and a spam message ...
 
 -jim

OK, call it a beneficial side effect if you want. In real world terms it does 
help.

Steve


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Description: PGP signature


Re: OT: Paradise.net shooting itself in the foot

2007-11-20 Thread Nick Rout

On Wed, November 21, 2007 9:53 am, Jim Cheetham wrote:
 On Nov 20, 2007 10:52 PM, Steve Holdoway [EMAIL PROTECTED] wrote:
 All headers bar the last one can be extremely simply faked, so they are
 pretty useless to use to identify the email's provenance. Because of
 this, some ISPs are clamping down on this. The Sender Policy Framework (
 eg http://www.openspf.org/ ) is an attempt to cut down on spam. This
 defines where an email has to be sent from to be treated as valid.

 Surely SPF doesn't cut down on spam, it merely cuts down on address
 spoofing?

 Admittedly a lot of spam uses spoofed addresses at the moment ... but
 there's not a direct relationship _per se_ between an address-spoofed
 message and a spam message ...

 -jim



If I am overseas or just connected to a different ISP I still want to be
able to use my regular ISP based (eg paradise) email address, even though
I am restricted to using the foreign ISP's smtp server. In that case I am
neither spamming nor address spoofing, merely using email as the RFC
intends me to be able to.


-- 
Nick Rout



Re: OT: Paradise.net shooting itself in the foot

2007-11-20 Thread Steve Holdoway
On Wed, 21 Nov 2007 10:11:43 +1300 (NZDT)
Nick Rout [EMAIL PROTECTED] wrote:

 
 On Wed, November 21, 2007 9:53 am, Jim Cheetham wrote:
  On Nov 20, 2007 10:52 PM, Steve Holdoway [EMAIL PROTECTED] wrote:
  All headers bar the last one can be extremely simply faked, so they are
  pretty useless to use to identify the email's provenance. Because of
  this, some ISPs are clamping down on this. The Sender Policy Framework (
  eg http://www.openspf.org/ ) is an attempt to cut down on spam. This
  defines where an email has to be sent from to be treated as valid.
 
  Surely SPF doesn't cut down on spam, it merely cuts down on address
  spoofing?
 
  Admittedly a lot of spam uses spoofed addresses at the moment ... but
  there's not a direct relationship _per se_ between an address-spoofed
  message and a spam message ...
 
  -jim
 
 
 
 If I am overseas or just connected to a different ISP I still want to be
 able to use my regular ISP based (eg paradise) email address, even though
 I am restricted to using the foreign ISP's smtp server. In that case I am
 neither spamming nor address spoofing, merely using email as the RFC
 intends me to be able to.
 
 
 -- 
 Nick Rout
 

But you're not restricted as above. The simpler alternative, which I'm sure 
paradise offer, is to use a web based email solution which, in effect, puts you 
back into their domain for both sending and receiving mail, and the problem 
goes away.

Lets be honest, there aren't many of us sad people who carry a computer that 
would require this service, unless their company provided for this eventuality 
- road warrior vpn or something similar- and you user their corporate servers.

Note that I'm trying to be practical, not correct here. The world was a far 
more niaive place when those rfcs were written, and spam wasn't a problem.

Steve


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OT: Paradise.net shooting itself in the foot

2007-11-19 Thread Wesley Parish
This isn't the first day I've received an email purporting to be from 
Paradise.net requiring me to verify my webmail/email details to prevent 
said account from being closed down.

I wish they'd get their act together.  Permitting this sort of infringement 
makes them look very, very bad.

Wesley Parish
-- 
Clinersterton beademung, with all of love - RIP James Blish
-
Gaul is quartered into three halves.  Things which are 
impossible are equal to each other.  Guerrilla 
warfare means up to their monkey tricks. 
Extracts from Schoolboy Howlers - the collective wisdom 
of the foolish.
-
Mau e ki, he aha te mea nui?
You ask, what is the most important thing?
Maku e ki, he tangata, he tangata, he tangata.
I reply, it is people, it is people, it is people.


Re: OT: Paradise.net shooting itself in the foot

2007-11-19 Thread Christopher Sawtell
On 11/19/07, Wesley Parish [EMAIL PROTECTED] wrote:
 This isn't the first day I've received an email purporting to be from
 Paradise.net requiring me to verify my webmail/email details to prevent
 said account from being closed down.

 I wish they'd get their act together.  Permitting this sort of infringement
 makes them look very, very bad.

You have sent the offending email, complete with headers, to
[EMAIL PROTECTED] havn't you?

They can't do much unless you show them the evidence.

Interestingly I have yet to see anything like that referring to my account.

-- 
Sincerely etc.
Christopher Sawtell


Re: OT: Paradise.net shooting itself in the foot

2007-11-19 Thread Volker Kuhlmann
On Mon 19 Nov 2007 20:57:52 NZDT +1300, Wesley Parish wrote:

 This isn't the first day I've received an email purporting to be from 
 Paradise.net requiring me to verify my webmail/email details to prevent 
 said account from being closed down.

Yeah, I've been getting that hogwash too. The text isn't even a laugh
... just enter your username and password here. Yawn. And Telstraclear
have a big warning up someplace.

 I wish they'd get their act together.  Permitting this sort of infringement 
 makes them look very, very bad.

Why do you assume they permit it? The one I looked at came from optusnet
in Oz. They could make an effort to have that account shut down, but
more likely they wouldn't be able to keep up. The only thing they could
do is train their filters better. Other than that, it's easy to
impersonate someone, spammers have been doing it for years.

Volker

-- 
Volker Kuhlmann is list0570 with the domain in header
http://volker.dnsalias.net/ Please do not CC list postings to me.


Re: OT: Paradise.net shooting itself in the foot

2007-11-19 Thread Wesley Parish
What I'm expecting them to have is some filter that looks at the purported 
address of the sender and at the actual history of the email, and dumps it if 
they are incompatible; I expect them to protect their own identity and thus 
their reputation even more than some other poor sod's, because their business 
lives or dies by their reputation.

By not doing this, they are in fact permitting infringement of what is 
called goodwill, and goodwill isn't something to lightly throw away.

Wesley Parish

On Tuesday 20 November 2007 00:36, Volker Kuhlmann wrote:
 On Mon 19 Nov 2007 20:57:52 NZDT +1300, Wesley Parish wrote:
  This isn't the first day I've received an email purporting to be from
  Paradise.net requiring me to verify my webmail/email details to prevent
  said account from being closed down.

 Yeah, I've been getting that hogwash too. The text isn't even a laugh
 ... just enter your username and password here. Yawn. And Telstraclear
 have a big warning up someplace.

  I wish they'd get their act together.  Permitting this sort of
  infringement makes them look very, very bad.

 Why do you assume they permit it? The one I looked at came from optusnet
 in Oz. They could make an effort to have that account shut down, but
 more likely they wouldn't be able to keep up. The only thing they could
 do is train their filters better. Other than that, it's easy to
 impersonate someone, spammers have been doing it for years.

 Volker

-- 
Clinersterton beademung, with all of love - RIP James Blish
-
Gaul is quartered into three halves.  Things which are 
impossible are equal to each other.  Guerrilla 
warfare means up to their monkey tricks. 
Extracts from Schoolboy Howlers - the collective wisdom 
of the foolish.
-
Mau e ki, he aha te mea nui?
You ask, what is the most important thing?
Maku e ki, he tangata, he tangata, he tangata.
I reply, it is people, it is people, it is people.