Spam.
Cant mention it without cringing. For web hosts whose business is to provide a
resource that can be exploited by spammers its a never-ending challenge. Until
there are better solutions available, web hosts need to take proactive steps to
stop abuse, protect their business and customers. Here are some things you can
do if not already implemented.
Regular Monitoring
Unfortunately,
there is no effective all automated solution yet. So you should rely on both
automated and manual methods. You should monitor uploaded files for common spam
scripts, server loads and unusual customer behavior especially new customers.
Registering your email with sites such as Spamcop.net or Abuse.net could help
channel complaints to you not your uplink. This way you can hopefully stop the
problem first instead of a rude wake up call from your uplink.
Despite
your best efforts, there will be times youll be taken for a ride. So draw up
an action plan what to do when that happens. Be firm but rational. Remember,
your customers may not be savvy about spam; they could have left their accounts
open to someone else to use. The possibilities are plenty. Its awfully easy to
be angry with accused spammers but its also very difficult to gain good
customers and keep them. This brings us to the next point, education.
Education
Education
is key to both your staff and customers. Keep up with the trends and technology
spammers use. Teach your staff what to look for in new customers and why you do
it. Set firm policies about using company email such as restricting use for
business use only.
For
customers, create informative pages on your web site or publish in your
newsletter, tips to fight spam either using tools you have available or other
methods. Teach them good emailing habits and also what to do if they are
accused of spam.
Order
Screening
Although
this is a low level form of prevention, when done with other methods you can
hope to weed out obvious spammers. Check customer IPs and domains against
blacklists or search in Google or Google Groups. If a domain is not registered,
be cautious. When checking up customers, remember to look out for address or
telephone number match also. Find out as much about your customers as possible,
make sure they check out. Some customers are touchy when you start asking a lot
of questions so its also good to make known to new sign ups your approval
process and why you do it. When explained tactfully, many customers will
understand and be glad because they dont want to be affiliated with spammers
any more than you do.
If
you currently have instant account activation, you may want to review how
effective it is for your business. Spammers love this because they can quickly
set up an account, send thousands of spam and be on their way again. By the
time you find out, the damage has been done. By all means have a quick and easy
account activation procedure but work in a manual approval step.
Technical Set Up
Have
SMTP authentication turned on and ensure your servers are not used as open
relays. If you have form mail scripts for customer use, make sure you are using
a secure one. Certain form mails are easily exploited. Again, educate your
customer. If they dont use a script provided, let them know what to look for
in a good form mail script.
Policies
Set
up clear acceptable use policies (AUP). Many web hosts have also included a
stiff penalty for spamming. This is often debated because spammers obviously
pay little attention to the law and one would hardly be able to collect the
fees since many spammers are located off shore. On the other hand, having stiff
penalties could stop customers from developing spamming habits. It also forces
the more responsible businesses to carefully review their communications before
sending out a mail piece. After all, if youre a spammer and never got caught,
youll continue because it cost you nothing. For some excellent AUP examples,
find them at Spamhaus.org (http://www.spamhaus.org/aups.html).
Web
hosting is a business after all, with bottom lines to watch. The measures
mentioned are blanket steps that may not work for all customers. You will have
customers you trust with large legitimate mailing lists. Depending how much you
value that customer, its worthwhile to work with them so you know what is
going on. You could also have a modified your AUP for that customer, use your
discretion.