Re Weird letter from Clear?

[Pete]

Brendon,

Why? Apparently Xtra do not allow sending through their SMTP

server for

domains that essentially aren't on a "register of Xtra hosted

domains".

I'm not sure that this is factually correct.

I have just relayed a message through smtp.xtra.co.nz from an Xtra
dial-up connection, which was sent from and addressed to, a domain
that is nothing to do with Xtra, and in no way associated with the
account it was sent from.

Even better, I did it by hand, talking raw SMTP, and here is the
transcript to prove it:

-----------------------------------
SMTP Transcript begins...
-----------------------------------

server:~$ telnet smtp.xtra.co.nz 25
Trying 203.96.92.131...
Connected to smtp.xtra.co.nz.
Escape character is '^]'.
220 mta3-rme.xtra.co.nz ESMTP server ready Wed, 7 Sep 2005 12:35:56
+1200
helo .
250 mta3-rme.xtra.co.nz
mail from:<***@mac.geek.nz>
250 Sender <***@mac.geek.nz> Ok
rcpt to:<***@mac.geek.nz>
250 Recipient <***@mac.geek.nz> Ok
Data
354 Ok Send data ending with <CRLF>.<CRLF>
Does this get through?
.
quit
250 Message received: 20050907003615.XEKO1650.mta3-rme.xtra.co.nz@
[210.54.127.xxx]
221 mta3-rme.xtra.co.nz ESMTP server closing connection
Connection closed by foreign host.

-----------------------------------
SMTP Transcript ends...
-----------------------------------

I can confirm that I then received this message (relayed through
Xtra) only a matter of seconds later!

Regards,
Pete

[John Morch]

I believe that smtp.xtra.co.nz will accept any incoming email from an email
client as long as it has originated from an IP address that Xtra "Owns"

Obviously it also accepts any email from mail servers no matter the ip
address (unless "blacklisted")

IE You are connected via Xtra dial up, Xtra Jetstream or have been allocated
a fixed ip from Xtra.

Same technique is used to limit access to pop3.xtra.co.nz to collect email.

If you connect via an Xtra ip address then you have access. Connect not
using an Xtra ip address and NO EMAIL. That is why when using the ipass
product from Xtra when travelling you need to change your pop3 address in
the email client.

They do not look at the "from domain name in the emails!!

Post by Pete

Why? Apparently Xtra do not allow sending through their SMTP server for
domains that essentially aren't on a "register of Xtra hosted domains".

I'm not sure that this is factually correct.
I have just relayed a message through smtp.xtra.co.nz from an Xtra dial-up
connection, which was sent from and addressed to, a domain that is nothing
to do with Xtra, and in no way associated with the account it was sent
from.
Even better, I did it by hand, talking raw SMTP, and here is the

_________________________________________________________________
Need a new job? Check out XtraMSN Careers http://xtramsn.co.nz/careers

[Brendon Parkinson]

To clarify:

I've spoken with a few others around the place and it appears it is
indeed "just a line" from the helpdesk (both Xtra and 123) to boost
sales/commissions. Which I'm glad to hear in a sense, as such a move
seems incredibly predatory (even for Xtra).

The amusing thing is that it's had the opposite effect for Xtra on all
the cases I've come across.

Regards,
Brendon

-----Original Message-----
From: owner-***@unixathome.org [mailto:owner-***@unixathome.org] On
Behalf Of John Morch
Sent: Wednesday, 7 September 2005 1:03 p.m.
To: ***@lists.unixathome.org
Subject: RE: Re Weird letter from Clear?

I believe that smtp.xtra.co.nz will accept any incoming email from an
email
client as long as it has originated from an IP address that Xtra "Owns"

Obviously it also accepts any email from mail servers no matter the ip
address (unless "blacklisted")

IE You are connected via Xtra dial up, Xtra Jetstream or have been
allocated
a fixed ip from Xtra.

Same technique is used to limit access to pop3.xtra.co.nz to collect
email.

If you connect via an Xtra ip address then you have access. Connect not
using an Xtra ip address and NO EMAIL. That is why when using the ipass
product from Xtra when travelling you need to change your pop3 address
in
the email client.

They do not look at the "from domain name in the emails!!

Post by Pete

Why? Apparently Xtra do not allow sending through their SMTP server

for

Post by Pete

domains that essentially aren't on a "register of Xtra hosted

domains".

Post by Pete
I'm not sure that this is factually correct.
I have just relayed a message through smtp.xtra.co.nz from an Xtra

dial-up

Post by Pete
connection, which was sent from and addressed to, a domain that is

nothing

Post by Pete
to do with Xtra, and in no way associated with the account it was sent
from.
Even better, I did it by hand, talking raw SMTP, and here is the

_________________________________________________________________
Need a new job? Check out XtraMSN Careers http://xtramsn.co.nz/careers
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