On 4/15/09, John Graham-Cumming jgc@jgc.org wrote:

Folks,

You've probably not heard of my URL shortener service http://twi.bz/ because it is very new, but I wanted to appeal to the SURBL folks to accept twi.bzdomain names within the SURBL lists. twi.bz is differently from the standard URL shorteners in that it includes the domain name of the destination site in the twi.bz domain name.

For example, a twi.bz link to amazon.com would be in the form: amazon.twi.bz/XYZ. A twi.bz link to amazon.ca would be in the form amazon.ca.twi.bz/XYZ and a twi.bz link to amazon.co.uk would be in the form amazon.co.uk.twi.bz/XYZ. For .com domains I strip the .com for all the rest I leave the TLD in place. Since this is in the domain name it should be easy for them to appear in the SURBL list.

Hi John, If you're asking SURBL applications to process twi.bz at the third level, that's probably not going to happen. Only official second level cctlds like co.uk are handled that way.

If you're asking SURBL to blacklist your domains at the third and higher levels, we're not going to do that either. Please see:

http://www.surbl.org/implementation.html

SpamAssassin checks all visible domains in a URI like:

http://www.shorterner.com/domain1.com/domain2.com

but it won't check subdomains as you've specified above.

On my side I'll be using SURBL multi on domains submitted to the service to check for spam.

Good move. Please see our "Open Letter To Operators Of Redirection Sites":

http://www.surbl.org/redirect.html

I'm hoping that the visibility in twi.bz domains, they're ability to appear in SURBL and my checking of SURBL links will make twi.bzunattractive for spammers.

John.

If you disallow SURBLed domains form using the service, then you will probably stop much of the abuse.

Cheers,

Jeff C.