[SpamCop-List] Re: Brightmail spam filter - opinions?
michael.spamcop at michaellefevre.com
Wed Jun 23 16:53:40 EDT 2004
> "Michael Lefevre" <michael.spamcop at michaellefevre.com> wrote in message
> news:cb91a4$2hl$1 at news.spamcop.net...
>> Brightmail is a compromise, suitable for large numbers of diverse
>> mailboxes and without losing too many wanted messages.
> Brightmail deletes WAY TOO MANY legitimate emails. My experience is that it
> deletes about 5% of the legitimate emails which is several a day for me.
> Not an acceptable ratio. I would say 0.1% would be the maximum (1 out of
> 1,000 legitimate emails).
5% seems a bit high - I imagine it's less than that, across their entire
customer base. But it's true that content-based filtering doesn't scale
well. From your other post, it sounds like the ISP's implementation of it
isn't working with their IP-based filters, which they do apparently have.
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