<snip> -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kevin Gillis Sent: Tuesday, November 08, 2005 8:11 PM To: [email protected] Subject: [IMail Forum] IMail and Antispam...
Hi All, Regarding this, wanted to add some comments: Customers mostly turn on the antispam and let it run - very low maintenance. False positive rate is about 1 in 500,000 and spam is recognized in 30 languages. I personally have stopped filtering through my Spam folder (checking for false positives) and some folks have actually removed the rule that populates the Spam folder and instead deletes all mail marked as spam straight away, automatically. Updates are delivered as frequently as every 10 minutes, 24x7x365. Feel free to ask any questions. <snip> I'll take you up on that Kevin. We have been told how much you have done in the past 12 months to be honest with us and get Imail back on track after we were lied to in the past. Thank you for being honest with us. So, what scientific and test procedures that can replicated did you implement to make a claim of False Positives being 1 in 500,000? What is the margin of error and at what confidence level do you make this claim based on? Also, are you telling me that someone actually went through at least 500,000 emails and to find 1 false positive? I find this very curious as your company could not go through several thousand domains to find legit domains (such as government agencies, major colleges and major ISPs) that were listed in the default blacklist. They were only removed once NON-IPSWITCH EMPLOYEES on this list yelled loud enough. If you could not find the legit 2% in 2,500, what amount of confidence should we have you when you state you found only 1 false positive in 500,000? Of course, it's also very easy to get 1 in 500,000 False Positives if your rules are not set too tight. I know even with Premium Service turned on and the additional rules that I wrote, a good percentage of spam still manages to get through. Heck, you guys can't even stop the Asian Spam coming to this list. I guess those are in a language outside of the 30 that it works in?. So if we do as you suggest, turn off all the rules for 24 hours and let Premium Filtering do it's thing, what percent of spam will we then receive Kevin? I am tempted to find out. I would like to replicate your test, so please, tell me the test procedures you used to obtain the numbers for this claim. Likewise, how many emails did you examine for false positives? This study could not be done on less than 500,000 emails as 1/2 an email cannot get through. If you did not go through 500,000 and just guessed at 1 in 500,000, then why not use 1 in 1,000,000 or 1 in 10,000,000....heck why not 1 in 100,000,000? And of course, if you only did 500,000 - who's to say that the next 500,000 would not have produced 5000 false positives. Thus you really had to test 5,000,000 to 50,000,000 or so to make this claim even close to legitimate. I am sure that happened, right? So how long did it take for your Staff to go through 5,000,000 - 50,000,000 emails looking for the one false positive? Wouldn't their time have been better spent, doing something like, hmmmmm, making a White List and black list that actually works correctly 100% of the time in IMail? I am sure this was thoroughly tested and can be replicated as this is the new, open and above board Ipswitch! You are just not pulling some number out the sky - like Ipswitch has been known to do with their pricing - are you? And finally, why do the simple Outlook 2003 Spam filters catch 99% of the spam that slips through Imail Premium Spam Filters? I'll anxiously await your answers. To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
