No one likes unsolicited e-mail
(spam) except the spammers. Spam typically
comes in two primary forms - either from
computer virus programs that act as mail
sending programs, or from computers turned
into mail servers specifically to send spam.
Cox Communications has a
variety of measures in place to help protect
our high-speed Internet customers and our
network from spam, and we continue to look for
ways that we can improve our services through
the control and elimination of spam.
I. Two Types of Spam
When looking at the spam issue, one must consider
not only the incoming spam that pollutes the
mailboxes of Cox High Speed Internet users, but also
the spam that is generated by computer systems on
the Cox High Speed Network (outgoing spam). While
incoming spam is a nuisance for our customers,
outgoing spam can be equally problematic. Other
Internet users and ISPs (Internet Service Providers)
maintain lists of ISPs that generate the most spam.
Some will blacklist those networks that generate the
most spam so that no mail coming from the
blacklisted ISP is accepted. In order to make sure
that your outgoing email reaches its intended
destination, Cox must control the amount of outgoing
spam generated on our network.
II. Methods for Controlling Incoming Spam
If
a customer receives an unsolicited commercial email
(spam message), they may report the sender to the
Internet Service Provider where the message
originated. There are several websites that detail
how to determine where a message originated and some
will assist you with reporting them to the proper
providers.
In
April, Cox is launching a network-based anti-spam
solution that will integrate with our email
platform. This will allow us to recognize and block
spam from known spammers using rules-based methods
and also white or black lists. Also, Cox already
offers McAfee Security products including their
popular SpamKiller product, which can help customers
to eliminate spam from their inboxes.
III. Incoming Spam FAQs
1. What is this new anti-spam
technology that Cox is launching? Cox
will soon offer a new tool to help customers stop
spam. Cox is in the process of installing more than
100 new servers across the country that will allow
us to offer you e-mail filtering for spam and
viruses at not additional charge. Our new
network-based anti-spam solution will give you the
power to control what enters your Cox.net email
box. You will be able to opt-in for one of two
levels of filtering. You can have messages
identified as spam trashed so you never see them.
Or, you can flag messages as spam and review them
later. If you choose not to use our spam filters,
you’ll keep receiving your e-mail the same way you
currently do.
2. What technology is involved in
the new anti-spam measures?
Cox will be deploying Brightmail Anti-Spam with
BrightSigTM technology that offers spam
protection at the messaging gateway, before it
reaches customers. The Brightmail anti-spam
solution is deployed by some of the world’s largest
Internet service providers and will help Cox to
greatly improve our Cox High Speed Internet
customers’ experience by significantly reducing the
amount of unwanted email that reaches their inboxes.
3. Why is it taking so long? I would
like to have this filtering now. We have been working since June 2003
to bring you spam and e-mail virus filtering. While
we built our infrastructure to support this massive
undertaking, we worked to carefully construct the
system to be sure that the e-mail you want to reach
you always does. We’re working hard to be sure that
we offer spam filtering that gives our customers the
flexibility they expect while not impacting our
current e-mail system.
4. Is Cox also offering some new
anti-virus protection?
Yes, Cox is simultaneously implementing new e-mail
anti-virus filters that will help to better protect
you from destructive Internet viruses that spread
via email. Our new e-mail anti-virus system will
scan and clean messages sent to you in email,
removing known viruses that may be attached. In
instances when an infected attachment or virus
cannot be cleaned, the email will be stripped and
you will receive a message stating that the email
could not be delivered to you due to a virus.
5. Cox is currently offering McAfee SpamKiller and VirusScan Online for an additional
monthly charge. Will Cox continue to offer these
McAfee products? Cox will
continue to offer a suite of McAfee Security
products to our customers as optional services that
they may enjoy. Customers may find that a program
like McAfee SpamKiller better suits their blocking
needs, or they might need filtering to block spam on
non-cox.net accounts. While our e-mail anti-virus
protection will stop viruses transmitted by incoming
e-mail, VirusScan Online will protect your entire
computer from viruses, including ones transmitted by
websites or in shared files and disks. Each McAfee
Security product sold by Cox has useful features
that are complimentary to their Cox High Speed
Internet service and may help customers to improve
their experience online.
6. Will Cox be issuing refunds to
customers who’ve purchased McAfee Security’s SpamKiller or VirusScan Online from Cox since they
won’t need these services once Cox’s network based
anti-spam and anti-virus solutions are available?
Cox will not be issuing refunds to customers for the
McAfee products/services they have purchased.
Customers may find that a program like McAfee
SpamKiller better suits their blocking needs, or
they might need filtering to block spam on non-cox.net
accounts. While our e-mail anti-virus protection
will stop viruses transmitted by incoming e-mail,
VirusScan Online will protect your entire computer
from viruses, including ones transmitted by websites
or in shared files and disks. Each McAfee Security
product sold by Cox has useful features that are
complimentary to their Cox High Speed Internet
Experience. Those customers who no longer wish to
subscribe to McAfee services may change their
service subscriptions. We expect that customers
will still enjoy the McAfee Security products
offered by Cox. Both SpamKiller and VirusScan
online have benefits and features that customers may
still find useful – even with Cox’s network based
anti-spam and anti-virus solutions providing the
first line of defense.
7. I am currently using an
anti-spam or anti-virus product that I bought at
retail; do I still need to employ these products?
Cox’s new server-based anti-spam and e-mail
anti-virus solutions will significantly enhance your
experience with Cox High Speed Internet by reducing
spam and providing you greater protection from
viruses. However, you may still find that having a
second layer of defense and the additional
features/controls offered from a 3rd-party
vendor, like McAfee Security or others, is useful.
8: I’m getting spam even though I
have never given out my address. Is Cox selling my
information? We do not
sell our customers’ e-mail addresses. Sometimes
spammers will try lists of common names or words in
different combinations to locate an active e-mail
address. For more information, please review our
Privacy Policy. To learn more about how to reduce
spam, please review our article on Unsolicited
Commercial E-Mail (http://support.cox.net/custsup/safety/spam.shtml).
9: I’m still receiving spam. How do
I stop it? Avoid placing
your email address on Web sites or newsgroups. When
providing your email address to third parties,
verify their Privacy Policy to determine if they
sell your information and what you can do to prevent
it. Only provide your email address to trusted
parties. You should also consider commercial
Spam-blocking software like McAfee Security’s
SpamKiller, which is available via Cox.
10: I heard that Cox does business
with DoubleClick; doesn’t this mean that Cox has
given my email address to spammers?
Although Cox has worked with DoubleClick in the
execution of some email campaigns, we have never
sold any of our customers email addresses to
DoubleClick or any other party. If you have opted
in to receive special offer email communications
through one of Cox’s marketing programs, or if you
are a Cox High Speed Internet customer, Cox may send
you messages with vendor assistance from a company
such as DoubleClick. However, these messages would
be of specific relevance to the receipt of services
from Cox or feature selected, value-added benefits
that are relevant to you. Our third party vendors
and partners are not authorized to send Cox
customers any additional messages or offers.
Cox
takes the privacy of our customers very seriously.
Our Online Privacy Policy may be viewed at
http://www.cox.com/policy/.
If you believe that one of Cox’s third party
affiliates is in violation of this policy, you
should report the suspected abuse to
privacy@cox.com so that we may investigate.
11: How will I know when Spam
filtering is available? Watch for additional information on our Cox.net
Start Pages for information on when spam and e-mail
virus filtering will be available in your area.
IV. Outgoing Spam
The
below information is found in Cox’s Acceptable Use
Policy (AUP), expressly prohibiting the use of the
Cox High Speed Internet connection to generate
spam. The accounts of customers who violate Cox’s
anti-spam policy may be suspended or terminated.
You may not use the
Service to send unsolicited bulk or commercial
e-mail messages ("spam"). Any unsolicited e-mail
must also not direct the recipient to any web site
or other resource that uses the Service. The Service
may not be used to collect responses from
unsolicited e-mail sent from accounts on other
Internet hosts or e-mail services that violates this
Policy or the acceptable use policy of any other
Internet service provider. In addition, "mail
bombing," the sending of numerous copies of the same
or substantially similar messages or very large
messages or files with the intent to disrupt a
server or account, is prohibited.
Cox
continuously reviews the feedback emailed to our
Security & Abuse Team regarding the amount of spam
generated by computers on our network. Based on
review of this feedback in July, 2003, Cox
determined it necessary to implement new procedures
to prevent outgoing spam so that Cox could avoid
being blacklisted by other ISPs.
To
reduce unsolicited bulk email sent on our Cox High
Speed Internet network, Cox instituted outbound SMTP traffic filtering (port 25 filtering).
Currently Cox also filters all inbound SMTP traffic
in an effort to protect unsecured computers on the
network from being used as mail relay by potential
spammers.
-
The outbound SMTP
traffic blocking security measure is designed to
protect Internet users and the Cox High Speed
Internet network. The vast majority of customers
are not affected by this practice in any way.
However, a small number of customers who use
e-mail addresses outside of the @cox.net domain
and who do not currently have their SMTP servers
set for Cox mail servers do need to change their
settings. The requirement that Cox servers be
used for all outgoing mail is simply so that Cox
can observe and control spammers by removing them
from the network.
-
Outbound SMTP
traffic blocking is quickly becoming an industry
standard. Other ISPs who block port 25 include
Bellsouth, Earthlink, Mindspring, Verizon, and
MSN.
-
Since the
implementation of the port 25 blocking procedure,
Cox has seen significant decreases in the
residential Cox High Speed Internet complaint
counts for different abuse types impacted by the
port 25 blocking. Port scanning complaints
decreased by 36%, virus complaints by 41%, spam
complaints by 52%, and open proxy by more than
78%.
-
Port 25
blocking also helped to control the impact viruses
that have polluted the network by preventing their
spread via email routing through port 25.
V. Outgoing Spam FAQs:
1: Which ports does Cox
currently block or filter? Cox presently
blocks Port 25 (both directions except
for access to Cox HSI provided mail
servers), port 80 (inbound), port 135
(both directions), Ports 136-139 (both
directions), Port 445 (both directions),
Port 1433 (inbound), Port 1434
(inbound), Port 1900 (both directions)
and Port 27374 (both directions).
Information on blocked ports is kept
updated on
support.cox.com. 2: Does Cox block or filter port
25? Yes, Cox blocks 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.
3: Does the outbound blocking of
port 25 mean that Cox customers have to use their @cox.net
email addresses for everything they send?
No. Customers can use any valid e-mail address, but
the email sent from their Cox High Speed Internet
connection must be routed through a Cox SMTP server.
4. What are the correct SMTP server
settings to use on the Cox High Speed Internet
Service? Correct SMTP
server settings for your location are found
here.
5. Why does Cox block outgoing mail
from use of port 25? The
filter of port 25 drastically reduces the number of
spam and virus emails originating from our customers
machines. Cox had to take this action in order to
ensure that a few bulk e-mailers or virus
disseminators did not result in the entire Cox.net
domain being blacklisted by other Internet Service
Providers.
6. Other ISPs don’t block outbound
use of port 25, why does Cox?
Although some ISPs may currently allow the use of
third party outgoing mail servers, it is important
to note that other providers such as MSN, Earthlink,
Mindspring, Verizon, and BellSouth do block outbound
use of port 25. We believe that this is quickly
becoming an industry standard among ISPs to help
control the volume of outgoing spam and the
dissemination of viruses. As the problem of spam
continues to proliferate, we believe that other ISPs
will implement this and similar blocks.
7. How does the filter of port 25
help with the problem of spam?
Typically, when a customer sends an email, it is
routed to a cox.net mail server (e.g.
smtp.west.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. They send mail directly from their
computer to others’ mail servers without routing it
through a cox.net mail server. The filter of port
25 prevents spammers from bypassing cox.net mail
servers and delivering spam directly to Internet
users. Also, this filter can prevent some viruses
from propagating at all.
8. Does the filter of port 25
hinder customers’ ability to send email?
The filter of port 25 does not impact the vast
majority of Cox customers, only the small percentage
of customers who use third party mail servers. Any
software configured to use an SMTP server other than
smtp.*.cox.net to deliver email directly to a
recipient’s server will not work. An indication of
this problem may be a message similar to this in the
customer’s mail client.
A time-out occurred
while communicating with the server. Account: ‘otheraccount.othersisp.com’,
Server: ‘othersmtp.com’, Protocol: SMTP, Port 25,
Secure (SSL): No, error Number: 0x800CCC19
Customers using third party email services must
configure their email clients to use smtp.*.cox.net
to send outbound email. Please remember that
operating an email or other server on a residential
Cox High Speed Internet connection is a violation of
our Acceptable Use Policy found at http://www.cox.com/iNetIncludes/policy/acceptable.asp
9. Some Cox customers use a laptop
at both home and office. The port 25 filter forces
some of these customers to change email settings
when checking work email from home. What is Cox’s
solution for this? Many
customers in this situation have been able to use a
VPN (virtual private network) connection to access
their email without having to change settings.
Another solution may be to use web-based email
applications where applicable. A third option is to
simply adjust the setting when working from home;
this is typically a one-line entry within the e-mail
client on the computer.
10. Does the filter of port 25
affect web-based email services? No,
customers may continue to use Cox High Speed
Internet WebMail, or services like HotMail and Yahoo
mail as they always have.
11. Does the filtering of Port 25
outbound affect the receipt of inbound email?
No. This does not affect retrieval of inbound email
from any service.
12: I pay for my own domain name so
I can send personal e-mail through that server. Is
Cox blocking this legitimate use?
We understand that some customers have vanity domain
names; Cox does not prevent customers from using
their personal domain names. To ensure your ability
to send email from your personal domain such that
the recipient sees a non-cox.net email address as
the “from” or “reply to” address, your mail client
must be set to a Cox outgoing mail server. The
domain used in any such address must have an MX
record that can be resolved by Cox DNS servers (i.e.
mac.com, yourdomain.com). These settings are
transparent to email recipients, and will not impact
your ability to receive email. If you have a
business requirement to bypass the Cox mail servers,
please contact Cox Business Services for additional
options.
13: Does Cox read my mail?
No. We respect your privacy and do not read any
email messages, instant messages, online chats, or
the content of other online communications that
reside on or pass through our Service. If you would
like more detailed information, please review our
Privacy Policy that can be found on
http://www.cox.com/INETIncludes/Policy/privacy.asp.
VI. CAN-Spam Act FAQs:
Q1. What is the CAN-Spam Act?
The CAN-Spam Act, effective January 1, 2004,
preempts all State spam statutes and places a
series of requirements on commercial email, “the
primary purpose of which is the commercial
advertisement or promotion of a commercial product
or service.”
The
act requires companies that send or initiate
commercial email to:
-
Refrain from using a misleading subject heading
-
Provide in each message a valid return email or
Internet-based reply address
-
Provide in each message a physical postal address
in the text
-
Provide a conspicuous notice that it is an
advertisement or solicitation
-
Include a notice explaining how recipients can
prevent the transmission of future messages by
using the sender’s return email address or
Internet-based reply address and honoring such
requests within 10 days
-
Refrain from selling or exchanging the email
address of any recipient who has made an “opt-out”
request
Businesses are permitted to send “transactional or
relationship messages to facilitate, complete or
confirm a commercial transaction that the recipient
has previously agreed to enter into.” This is
intended to be a very narrow exception and would
include warranty, recall, safety or security
information regarding a product previously
purchased, periodic account statements and the
like. “Transactional or relationship” messages may
also contain content promoting a product or service
unrelated to a previous transaction if ancillary to
the primary purpose of the communication.
A
safe harbor exists for companies that have
reasonable compliance practices and make good faith
compliance efforts. The Act also requires the FTC
to study the creation of a nationwide “do-not-email”
registry similar to its “do-not-call” list.
Q2. How does the CAN-Spam Act impact
Cox High Speed Internet Customers?
It is widely recognized that government efforts to
prevent spam will be difficult. Early legislation
on this issue by various States and other nations
has been criticized as being difficult to enforce
and police. Many spammers are very crafty in their
techniques and are difficult to trace.
Nevertheless, Cox supports federal efforts to
establish laws such as the CAN-Spam Act, which
includes penalties for spammers. Cox also looks
forward to advent of policing methods and
technologies that will see a reduction in unwanted
email that is a nuisance to customers and costly to
their productivity. Cox High Speed Internet
Customers are already prohibited from sending spam
in the CHSI Acceptable Use Policy, which may be
viewed at
http://www.cox.com/policy/#Acceptable_Use_Policy.