coxengr
Premium,VIP
join:2002-03-09
Atlanta, GA
| Port25: outbound rules enforced to non-Cox servers
All - just a heads up that due to the large volume of SPAM that is originating mostly from customer's compromised computers, we will be enforcing our Port 25 (SMTP) policy to non-Cox servers. This means that if you send mail directly Internet hosts from your PC, this method of mail delivery will no longer work. If you do not understand the above, it probably means you are not impacted (this effects only a small percentage of our customers). We really didn't want to have to take this step, but a large ISP has just started sending us their daily SPAM complaint traffic which amounts to about 45,000 messages a day. This is 30x our normal daily volume. They have also threatened to start blocking our email.
This will be implemented over the next two months. Macon, Georgia is already activated. You can still use the Cox mail server to send mail, even if the return address is not a Cox email. I apologize to those that may be inconvenienced by this measure. We do recognize that some people like to leave their laptop configuration the same which allows them to go back and forth between work and home without reconfiguring their set up.
For the full details, please refer to the following web page: »support.cox.net/custsup/email/em···fo.shtml
Q: What changes are actually being made?
A: Cox will block all network traffic from residential customer IP addresses going outbound on port 25 (SMTP) at our routers, unless it is being sent to a Cox HSI SMTP server.
Q: Does this mean that I have to use my @cox.net e-mail address for everything I send?
A: No. You can use any valid e-mail address, but the email sent from your Cox High Speed Internet connection must be routed through a Cox SMTP server.
Q. What are the correct SMTP server settings to use on the Cox High Speed Internet service?
A. For more information on setting up your e-mail, please visit this page: »support.cox.net/custsup/email/PO···gs.shtml.
Q. Why is Cox doing this?
A. The filter will drastically reduce the number of spam and virus emails originating from our customers. Most Internet Service Providers have adopted this practice to reduce spam. We must take this action to ensure that a few bulk e-mailers do not get the entire Cox.net domain blacklisted from sending mail to other Internet Service Providers.
Q. How will the filter help?
A. Typically, when a customer sends an email, it is routed to a cox.net mail server (e.g. smtp.east.cox.net), and the Cox server relays it to the recipient?s server. Spammers and modern mass mailer viruses commonly bypass the cox.net mail servers to send mail directly from their computer to others? mail servers without routing it through a cox.net mail server. This filter will prevent spammers from bypassing cox.net mail servers and delivering spam directly to Internet users. Also, this filter prevents viruses such as W32.Klez.H@mm from propagating at all.
This does NOT impact Cox business service customers.
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