Alan J. Flavell wrote:
>
> Spamcop is a different kind of list. It reacts fast (sometimes within
> minutes) because it is updated directly from spam reports, without
> confirmation as to the nature of the spam-relay mechanism. As such,
> it generates short-term blacklistings, without immediate right of
> appeal, for IPs which are otherwise bona fide. Using Spamcop as an
> unconfirmed rejection criterion can, in our experience, result in
> rejection of mail from bona fide MTAs (e.g mailing list servers).
>
That is not quite how it works as I understand it. Spamcop blocklists
are compiled on two bases - spam sent to spamtraps which is identical to
Spamhaus and reports from SpamCop users. A single user report will not
cause you to be blacklisted - if you look they are almost all spamtrap
guilty as well - and the reports are weighted according to the reporting
record of the reporter inter alia. So its difficult for an individual
get a non-spammer blacklisted through forgetfulness or deliberately and
you can appeal to the Deputies on SpamCop if the listing is wrong.
>
>> OTOH I don't think they do pre-emptive listings as Spamhaus do.
>
> Define "pre-emptive".
Pre-emptive means they will block it before any evidence of sending spam
has been gathered based on one of the ROKSO's moving in.
>
> Spamhaus is very different - see http://www.spamcop.net/bl.shtml
>
> Your claim that Spamcop "provides an SBL/XBL service" can IMHO only
> cause confusion.
>
SBL is a Spam Block List and XBL is an eXploits Block List. Spamhaus
has them separate, Spamcop combines them into one, the SCBL (SpamCop
Block List). Its still a block list of spam and exploits - what's
confusing about that? The only difference is the way they generate the
lists. It would be a bit pointless both offering identical lists given
both are free. The whole idea is you have a choice of the two.
>
>> In the end you (don't) pay your money and make your choice.
>
> Quite. And reading the list's own statement of policy is surely part
> of that choice.
>
Isn't that obvious? Any list will have to choose between high
filtration with some false positives or low false positives with more
spam getting through. With two lists you (if you run your own domain)
or your ISP gets to choose.
--
Tony
"The best way I know of to win an argument is to start by being in the
right."
- Lord Hailsham