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Originally Posted by Toreador
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And as regards things like SpamPal - yes, they're all very well but you still have to download the messages to your server, and things like virus-containing mails are about 150K each, that's a lot of bandwidth.
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In my experience this isn't entirely accurate. AIUI Spampal uses the "TOP" command to get headers to send to DNSBLs. You can then choose to have it add a tag to the subject line based on the result. Using OE it's then possible to set up a "delete on server" rule which deletes the mail without downloading the body. What it comes down to is how much confidence you have in different blocklists. In my case, anything from China or Korea gets tagged CHI-KOR and I never see it. I'm thinking about extending that to the Spamhaus SBL+XBL lists, as I've had such good results with them. (Zero false positives.)
I'm puzzled as to why this works - after all, spampal can only tag the mail on the local machine, not ntl's server - but for some reason it does.
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Originally Posted by Toreador
MailWasher is better as you get to delete it direct from the server, but this is slow if you leave your messages on the server so you can get at them via webmail.
Whatever NTL do they are going to lose customers. They just need to decide whether they'd prefer to lose them via inaction, or by doing something. I suspect that more people will be lost be allowing spam through than those who would go elsewhere because they prefer to deal with spam themselves. <snip>
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Well, NTL has the option of letting people decide for themselves. They could allow people to opt in to or out of server side spam filtering, then keep the two kinds of accounts on different sets of mailservers.