Have you tried to follow the procedure here?

http://www.spamhaus.org/lookup/

If you are an ISP customer, chances are they have to do it for you.

http://www.spamhaus.org/sbl/delistingprocedure/

On 7 January 2015 at 10:44, Evon Wangari via skunkworks <skunkworks@lists.my.co.ke> wrote:

Hi Guys,

Which email do you send the request to unlist by SBL. Unable to send mostly to yahoo

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@njukey