[TriLUG] [Fwd: Important Cox E-Mail Delivery Changes]

[Ryan Leathers]

Problem:
My provider is blocking/filtering <pick a service> and I really want it.
Solution:
There are several ways to go, but they each require effort and can be
ugly if you want non-techie types to be able to use the services.

A) Run your service on a non-standard high port number.
B) Run netcat on a Linux host and do PAT
C) Get a Cisco (or some other) router and do ip nat inside source static
D) SSH tunnels - the poor man's VPN
E) Go get a crisp new $100 bill from the bank.  Invite your service
provider to lunch and matter of factly display the green while
announcing "Mr Service Provider... here I have a fine portrait of Mr.
Franklin. It can be yours if you allow me to use <hitherto-fore
prohibited service>."

Good luck


On Fri, 2003-06-27 at 15:27, Chris Bullock wrote:
> I just got this from Cox. I am using postfix at home for my smtp but now 
> cox is tring to block *any* smtp servers on their network except their 
> own. Any ideas how how I can get around this. Would NAT do anything, or 
> have I lost this battle already.
> --cgb
> -------- Original Message --------
> Subject: 	Important Cox E-Mail Delivery Changes
> Date: 	Fri, 27 Jun 2003 14:19:42 -0400 (EDT)
> From: 	Cox Communications <Cox_Net at updates.cox.com>
> To: 	cgbullock at cox.net
> 
> 
> 
> Dear Customer,
> 
> With the increasing popularity of always-on High Speed Internet
> connections, the potential for unsolicited e-mail, or SPAM, has also
> increased.  This is not only considered a nuisance by our valued
> customers, but also potentially degrades customers e-mail service by
> consuming network and mail server resources.  SPAM also increases the
> potential for computer related virus attacks.  In an effort to protect
> our customers, as well as other members of the Internet community
> receiving e-mail from Cox customers, Cox is currently engaged in an
> initiative to reduce the amount of SPAM originating from our Cox High
> Speed Internet network.  Beginning Wednesday, July 2, 2003 we will filter
> access to all 3rd party outgoing (SMTP) mail servers.
> 
> You may be connecting to a 3rd party mail server because of one of the
> following reasons:
> 
>  - Your e-mail software, such as Outlook Express, is configured to
> use a 3rd party outgoing mail server to send e-mail, with or without
> your knowledge.
> 
>  - Your computer may be allowing other users from the Internet to
> connect to it.  These outside users may be using your machine to
> ‘relay’ their e-mail. We recommend that you review the security of
> your PC.
> 
>  - Your computer is infected with a virus that is attempting to spread
> itself via e-mail. We recommend that you update your anti-virus
> software and scan your machine for viruses.
> 
> We believe that by putting this filter in place, we will stop 9 out of
> 10 spam e-mails coming from the Cox network.  This will not only
> improve the experience for all Internet users, it will help insure
> that other Internet Service providers do not take action to block
> legitimate e-mail from our users.
> 
> Following the implementation of this filter, any e-mail software
> configured to use an SMTP server other than smtp.east.cox.net to send
> e-mail from your computer will no longer work.  Although you will
> still be able to read any e-mail sent to you, an error message such as
> the one shown below will appear when you attempt to send e-mail to
> others:
> 
>   A time-out occurred while communicating with the server.
>   Account: ‘otheraccount.otherisp.com’, Server: ‘othersmtp.otherisp.com’,
>   Protocol: SMTP, Port 25, Secure(SSL): No, Error Number: 0x800CCC19
> 
> 
> Customers using 3rd party email services must re-configure their email
> clients to use smtp.east.cox.net to send outbound e-mail.  You will
> find detailed instructions for configuring your mail client to use Cox
> servers for outbound SMTP e-mail traffic on our support site at the
> following URL:
> 
> http://support.cox.net/custsup/email/settingup.shtml
> 
> If you have a personal vanity domain you may still be able to use it
> in your e-mail address, as long as you use Cox e-mail servers when
> sending outgoing messages.
> 
> If you would like more information on this initiative, please visit
> our support site at:
> 
> http://support.cox.net/custsup/email/email_info.shtml.
> 
> Thank you for choosing Cox as your High Speed Internet provider.
> 
> 
> Regards,
> Cox High Speed Internet Team
> 
> 
> 
> 
> _______________________________________________
> TriLUG mailing list
>     http://www.trilug.org/mailman/listinfo/trilug
> TriLUG Organizational FAQ:
>     http://www.trilug.org/faq/TriLUG-faq.html
-- 
Ryan Leathers <ryan.leathers at globalknowledge.com>
Global Knowledge
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part
URL: <http://www.trilug.org/pipermail/trilug/attachments/20030627/ed60b4f9/attachment.pgp>