I was asked a year ago to come up with a solution for spam filtering, in a multiple domain, multiple user environment ( > 4,400 users). After extensive research I recommended SA. I installed SA on my system and ran it for about a month, it was an older version than the 2.44 that this author used for his tests.
I found that the success rates were higher then what he claims, the false negatives/positives lower than what he claimed. I did however make those "admin only" changes to tune it for better results.
My recommendations also included that the individual users *HAVE* to have an easily usable interface for configuring their own settings.
The research costs can be ignored because they would exist for whatever solution was chosen. Due to the fact that other software needed upgrading on their servers to support SA the price was higher than it should have been, consequently it took me a full day (11 hours)to implement SA and modify software that was dependant on an older perl installation It took 15 hours to create a php front end that was integrated into their system.
Unfotunately this company has not upgraded, they still use 2.44 so their rates of success/failure will and do in fact reflect this. However if they were to upgrade I could do this in under 4 hours.
I don't recall offhand what products I looked at last year, so if we look at what that author used for a cost comparison we would see that this company didn't make a mistake choosing SA.
User base of > 4,400
Product
Brightmail $ 35,000 for 1 year FrontBridge $ 75,000 for 1 year Postini $ 68,750 for 1 year ProofPoint $ 54,049 for 1 year SpamAssassin $ 2,700 for 1 year
SA implementation: 27 hours (Assuming $100.00 per hour), includes the custom logging and the UI for user configs.
I implemented this on their systems last December, and as I have already said they havent upgraded therefore if they were to continue with that decision, in a couple of weeks they would not have any spam filtering if they had chose one of the commercial solutions listed above.
As it is they will still have spam filtering, albeit not very good anymore. If they choose to upgrade it would cost about 4 hours. So now we would see something like this:
Brightmail $ 70,000 for 2 years FrontBridge $150,000 for 2 years Postini $137,500 for 2 years ProofPoint $108,098 for 2 years SpamAssassin $ 3,100 for 2 years
So I guess SA would loose out in my scenario, (cost wise) if there were only 50 or less users:
Brightmail $ 2,998 for 2 years FrontBridge $ 2,700 for 2 years Postini $ 2,700 for 2 years ProofPoint $ 2,000 for 2 years SpamAssassin $ 3,100 for 2 years
51 users, is another story though......
Terry....
Jeremy Dold wrote:
Does someone want to respond to this guy and point out the obvious? http://www.infoworld.com/article/03/11/14/45FEspam_1.html?s=tc
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