71 Getting Even And Killing Spam with CGI

If you use cgi to provide web based email through forms, you do not have to display your email address. I do that in my shop and it works.

If you generate bogus random addresses like bs@bs.com you will tip them off to the sys admin when they begin a mailing getting thousands of “address unknowns”, or wasting their bandwidth if they are a service.

If you must display an email address, make an image that uses the method Xavier Defrang mentions above to link it, with the function as an external .js script.

The link is not my site, just a place i found where you can get these simple scripts if you are too lazy to write them.

Avitar

posted at 12:00 am on January 22, 2003 by Avitar

72 שדגכשדגכגשדכ

דגכעדשגכשדגכדגכדגכ

posted at 12:13 pm on February 17, 2003 by

73 Disposable Addresses

Check out spamgourmet.com
It works the same as sneakEmail.com

posted at 04:17 pm on February 19, 2003 by Tim the Logokleptomaniac

74 Stopping Spambots

http://www.neilgunton.com/spambot_trap/

Just search for “Balu” to find my php-solution, that generates a uniq mailto: for each visitor – which looks like

web-32bitIP.timestamp@example.com

This way I can easily reject addresses that were found by bots and are used for SPAMming. I even know where the bot came from and when. I can even find them in the webserver-logfiles and analyze their activity.

There are many other ideas and hints on that page too…

posted at 03:51 pm on March 3, 2003 by Balu

75 Contact Form

Just use a contact form that then mails you the content of the form. The user doesn’t need to know your e-mail address at all.
I use one at my site and users find it easy to use.
Cheers

posted at 09:38 am on July 26, 2003 by Alex

76 destroy the harvester's database

By far the most elegant approach AFAIK;
Catch the email harvester in a tar pit and destroy it’s database.
(including the email address just snatched from your HTML)

All mail links can remain unmodified.

http://www.monkeys.com/wpoison/

posted at 09:50 am on September 12, 2003 by Marek Moehling

77 Easy Method

The easiest and as far as I know most fool-proof method is one that Xavier almost alluded to. It involves a simple Javascript function that assembles an email address when the user clicks a hyperlink.

function mail(user) {
locationstring = “mailto:” + user + “@” + “domain.com”;
[removed] = locationstring;
}

You can of course add more variables so that you may use multiple domains, ie:

function mail(user,dom,tld) {
locationstring = “mailto:” + user + “@” + dom + “.” + tld;
[removed] = locationstring;
}

In the hyperlink, just call the function:

[removed] mail(‘johndoe’,‘domain’,‘com’);

This method has proved exceptionally reliable. To test it, I put a page with a normal email link to spam@mydomain.com and one to my real address assembled through this Javascript function. Spam comes to the spam address, but not to my real address.

Hopefully this helps someone!

posted at 10:02 am on October 5, 2003 by lithis

78 Use their own techniques against them

In pure HTML you can extra tags that will not get in the way.
You can also use the character entities.
JavaScript would be needed to dynamically add this to the HREF of the mailto link.
You can even distribute the parts of you email address in invisible tags around the page, even put some bits in attributes, and use JavaScript to reconstruct it in.

Problem with non-javascript browsers though.

Maybe have <? include my_email.txt ?> in the mailto href and on the page for a server side solution. But don’t bots get to the page after sever-side processing?

posted at 10:23 am on October 18, 2003 by LJ