In article <[EMAIL PROTECTED]> , Kelly Jones <[EMAIL PROTECTED]> writes >I know that most (90%+) email sent now is spam, but what are the >numbers for people who use spam filtering? > >I realize it varies by user, sensitivity to false positives, tools >used, etc, but do people who use spam filtering find that only 10% of >the messages they receive are spam? 25%? 50%? higher? > >I'd like something quasi-official if possible, so I can tell my >bosses: according to this report, even with diligent spam filtering, >xx% of the email people receive is still spam. If fewer than xx% of >your email is spam, we're ahead of the curve.
Looking at my account which gets filtered by Brightmail on average around 15-20% of the mail delivered is spam at the moment. It's been higher though, and without mailing lists around 90% of the mail they delivered would be spam. Although they also FP a *lot* on mailing lists so I don't know why I haven't removed more onto other accounts. I've never heard back whenever I politely mention FPs and they keep happening. Gmail seems to vary it's success rates. It used to do pretty well with only the odd FP creeping through and around 75-80% of messages being correctly put in the Junk folder. Recently it started getting messages from a small mailing list address used for a contact address - that is filtered by SA 3.0.2 without any updates or custom rules to my knowledge and it misses a lot of spam - probably less than 5% is legit. Gmail's ability to catch that varies (since it comes from a clean IP to be fair); I've seen my inbox easily reach 65% spam in the past, although it seems to be sitting at around 10% just now. Hotmail seems to be doing a good job just now. A few months ago they were letting quite a bit through but they seem to have slowed it to a trickle. No idea on figures 'cause I can't be bothered looking and I don't pay much attention to that I'm afraid. My own SA seems to rarely let spam through - usually just at the start of a run[1]. sa-update, DNS tests, ImageInfo, WebRedirect, some SARE and some custom rules (about 80% metas) all seem to keep it pretty clean. No idea of actual figures since I don't read people's mail but given that it handles a number of fairly public addresses very little gets through. At a guestimate I'd say an average of 5% or less - the figure being a little higher from the stock runs a few weeks back. [1] This is actually my biggest complaint about Brightmail - I can understand new spam getting through, but they deliver stuff which has been scoring 30+ on my SA for weeks/months. Kevin
