I roll my eyes whenever i hear this topic come up ;-) spam is rife these days, and there is no cheap way to combat. take a look at trend microsystems spam filter service for viruswall - it costs around $30 per user per year - and then you need to buy viruswall licenses first.
that system works by using a 'spam list' published by trend in a similar way to those net-nanny type web filters, so you need to keep the license up to date in order to get the daily list updates. that level of filtering is the only real means of making any effective difference to the spam problem, but obviously can't guarantee 100% hit rate, nor can it guarantee 0% incorrect hits. spam-fiends are getting smareter too. recently i did a check on open relay spam on a server that did no rbl, and the rate was about 50:1 - that's 1 open relay generated spam for every 50 direct. so if i slapped an open relay filter on that system, it would only provide 2% reduction in garbage. not that 2% is better than nothing! these days spam-mailers do tricks like handle their own mx lookups (no need for relay servers) and generate random content, from addresses and subject lines so that it's a full time job to update known spam mail lists. and i suppose that's why spam systems like trend cost so much. anyhow, my usual response to comments like you received are "use a respectable client-side spam filter, and never publish your email address anywhere on a web site, never use your real address in newsgroups, and never ever contribute to mailing lists like this one" oops - too late ;-) cheers. +--------------------------------------------------------------+ | Turn on your Revenue Stream... | | Bolt on a Virtual Cash Register to your e-commerce site now. | | VeriPay from Xilo Online: http://www.xilo.com/veripay | +--------------------------------------------------------------+ > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Mike Kear > Sent: Wednesday, 27 August 2003 12:39 AM > To: CFAussie Mailing List > Subject: [cfaussie] OT: Anyone got an effective anti-spam and > anti-virus > program at the server level? > > > > I got a message from one of my clients today, whose web site > I host, and > here's what he said ... I'd like to know if anyone's got any > effective > measures to do what he wants ..... > > > > [quote] > Could you ask your hosting company to virus-detect the emails > and stop all > these sex emails coming to us almost 10 emails every day. If > they can not do > this I have to move my hosting from you. In past few weeks we > have lost our > server due to infected emails and down time has been 30% this is not > satisfactory. [/quote] > > > > My initial reaction is to tell him he's living in lala-land > if he thinks he > can stop spam, specially since his website has his email > address on it in a > dozen places, but before I did that I thought I'd check and > see what you > guys think .. Only TEN?? Porn emails a day? And how many > opportunities > a day to share in US$30 million from some corrupt official in Nigeria? > (Perhaps he's treating those as serious propositions). > > > > > Cheers, > Michael Kear > Windsor, NSW, Australia > AFP Webworks. > > > > --- > You are currently subscribed to cfaussie as: [EMAIL PROTECTED] > To unsubscribe send a blank email to > [EMAIL PROTECTED] > > MX Downunder AsiaPac DevCon - http://mxdu.com/ --- You are currently subscribed to cfaussie as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED] MX Downunder AsiaPac DevCon - http://mxdu.com/
