 kstuartKen StuartPremium
join:2003-10-15
N California | reply to elvey
Re: [General] Hey SBC Techs, what's with abuse@pacbell.net? The page on the Hormel site is interesting, and I will defer to their wishes and use lower case for unsoliticed email.
However, some web page's definition of "whitelist" is just their opinion - a word is defined by use. And more importantly, I was referring to "whitelist software" - which is not just software that implements a whitelist, just as "windows software" is not just software that implements a windowing system.
(I have not seen the use of "challenge response" at all, so excuse me if I ignore that reference altogether.)
The software that I have seen that calls itself "whitelist" software operates as follows:
- User creates a list of accepted email addresses - the whitelist. Example:
fred@yahoo.com,cindy@hotmail.com,sports-talk@yahoogroups.com
- All email from addresses that are not on the list are either put in a separate folder or deleted (user's choice), and an email is sent to the sender stating that to contact this person, they need to perform a human-only action (such as reply to the email after removing some characters according to instructions).
I don't see how such a system can have "false positive" or "false negatives" unless the particular software package happened to have bugs.
The advantage is removal of all unsoliticed email - by definition - and the disadvantage is that humans who have not previously emailed you must send the email a second time.
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