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Author Topic: Ideas for fighting spam  (Read 4824 times)
testube
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« on: October 27, 2006, 03:46:05 PM »

I recently posted this to one of my blogs, but thought that some of my fellow WebHSP customers could use it, as well.

Here's a technique that I have been using for several years now that has served me well...

1) Get your own domain name and sign up for hosting

2) Turn on the "black hole" or "fail" option for POP mail that trashes all email that is sent to unlisted addresses, like the commonly spammed "admin@mydomain.com" or "webmaster@mydomain.com" addresses. (I recently read that the :fail: option is less taxing on the server than the "blackhole" option, so use that one if you can.)

3) Create an email POP account that you will use as a catch-all for non-personal web services
for example: "stuff@mydomain.com"

4) Everytime you sign up for a user account with a new website, use that website's name in the email you give them.
for example: at myspace you would use "myspace@mydomain.com"

5) Create a forwarding order in CPanel and forward the new myspace email address to your catch-all address
like this: forward "myspace@mydomain.com" >> "stuff@mydomain.com"

6) Create a separate POP account for your personal email and never use it on a website, forum, chatroom or online store. Only give it out to trusted friends who aren't stupid enough to forward you email chain letters.
for example: "myname@mydomain.com"

That's it! Now you have a personal email account that will remain spamless (if your friends are smart and don't share your email with strangers), and you have a generic catch-all email account to forward messages to every time you sign up with a new service. Whether it's

myspace@mydomain.com
yahoo@mydomain.com
ebay@mydomain.com
amazon@mydomain.com

...or whatever...just create forwarders to your catch-all address each time you create a new account at one of these types of websites. Sure, it sounds funny when you tell someone at enterprise rental car that your email is "enterprise @mydomain.com", but it will save you lots of headaches in the long run. You are setting up not only a spam fighting technique, but an email tracking tool, as well.

So if one of these websites gives out your email address, and you start receiving junk mail addressed to "myspace@mydomain.com", then you know that myspace was the one that sold you out or displayed your email address for all of the world to see. So you just delete the "myspace@mydomain.com" forwarder and -*bingo*- no more junk mail from them.

Just be sure not to respond to anything or send mail with your catch-all account or you may expose it to spam. If you absolutely need to respond to a website via your catch-all account, you should temporarily change the "from" address in your email program to match the company you are responding to before you send it (so that your response to myspace comes from myspace@mydomain.com" and not the catch-all address.)

Hope this works for you! I know that its not for everyone, but depending on your situation it may help to fight spam a little more.

Cheers,

Jeff
http://www.spellingsearch.com
« Last Edit: October 27, 2006, 03:47:01 PM by testube » Logged
WHSP-Jarrod
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« Reply #1 on: October 27, 2006, 04:18:26 PM »

Hi Jeff,

Thanks very much for posting this, this is a great suggestion for how to handle spam when signing up for different web-based services.

If I may, I'd like to add another anti-spam technique that I've found to be quite useful in preventing website crawling bots from harvesting your e-mail addresses.  Any time that you want to leave an e-mail address on a webpage, be it the "Contact" page of your own site, or when leaving a comment on someone's blog, try to find some way of encrypting or obfuscating your e-mail address so that spammers' web crawlers have a harder time picking it up.

The tool I tend to use most often is the "Enkoder" tool available at the following URL: http://automaticlabs.com/products/enkoderform

This will take a standard e-mail address link such as:

Code:
<a href="mailto:support@webhsp.com">support@webhsp.com</a>

and change it into something like this:

Code:
<script type="text/javascript">
/* <![CDATA[ */
function hivelogic_enkoder(){var kode=
"kode=\";)'':)1-htgnel.edok(tArahc.edok?htgnel.edok<i(+x=edok})i(tArahc.edo"+
"k+)1+i(tArahc.edok=+x{)2=+i;)1-htgnel.edok(<i;0=i(rof;''=x;\\\"')('injo).e"+
"(rsvere).''t(lispe.od=kdeko\\\"\\\\;oked\\\"\\\\=o\\\\\\\\ek\\\\\\\\d\\\""+
"\\\\\\\\\\\\=\\\\\\\\x=edok})c(edoCrahCmorf.gnirtS=+x;821=+c)0<c(fi;3-)i(t"+
"AedoCrahc.edok=c{)++i;htgnel.edok<i;0=i(rof;''=x;\\\\\\\\\\\\\\\\\\\\\\\\"+
"\\\"\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\,**+qlrm1,+hvuhyhu1,**+wlosv1hgrn@"+
"hgrn>%grfxphqw1zulwh+%_?d#kuhi@__%_pdlowr=vxssruwCzhekvs1frp__%_#wlwoh@__%"+
"___%_AvxssruwCzhekvs1frp?2dA%_,>%@hgrn\\\\\\\\\\\\\\\\\\\\\\\\\\\"\\\\\\\\"+
"\\\\\\\\\\\\\\\\\\\\\\\\\\\\=edo\\\\\\\\\\\\\\\\\\\\\\\\\\\"\\\\kkd;=ooeek"+
"sdl.tp'i)(r'v.reee)sj(i.(o'n)'\\\\\\\\\\\"\\\\x;'=;'of(r=i;0<ik(do.eelgnht"+
"1-;)+i2={)+xk=do.ehcratAi(1++)okedc.ahAr(t)ik}do=e+xi(k<do.eelgnhtk?do.ehc"+
"ratAk(do.eelgnht1-:)'';)=\\\"\\\\deko\\\"=edok\";kode=kode.split('').rever"+
"se().join('')"
;var i,c,x;while(eval(kode));}hivelogic_enkoder();
/* ]]> */
</script>

It adds a few extra bytes to your HTML code, but I don't think there's a spambot out there that can pull an e-mail address out of that.

Hope this helps, thanks again Jeff!
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