[Mimedefang] Re: dictionary attacks looking for a valid user

Stefan Schoeman stefan at internext.co.za
Thu Dec 29 12:02:20 EST 2005


Hi All,

I've found that greylisting takes care of these mining attempts anyway.
Sure, my greylist database is filled with rubbish, but at least it will be
cleared in 5 hours' time and the mining attempt would not have got a single
username right, unless it was re-run 30 minutes later. With the distributed
nature of these mining attempts, that is rather unlikely.

You may want to do greylisting for anti-spam purposes in any case - and it
also addresses this issue.

Stefan



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