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how successful is spamassassin in your firm ?

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'chris'
Super Advisor

how successful is spamassassin in your firm ?

hi

How successful is spamassassin in your firm ?
I find on the Internet, that spamassassin could filter
only up to 20%-30% really spam.
Is it true ?
And for a produktive firm (about 250 users),
I should not use spamassasin.
I should take a spam appliance.
Are you agree ?

kind regards
chris


7 REPLIES
Stuart Browne
Honored Contributor
Solution

Re: how successful is spamassassin in your firm ?

I use spam-assassin here, with both DCC and Razor connections, and get about 70-80% filter rate. This is without Learning mode.
One long-haired git at your service...
Steven E. Protter
Exalted Contributor

Re: how successful is spamassassin in your firm ?

I am a fan of spam assassin.

I have several tools.

A database of anyone that has ever sent me or my customers spam.

spamassasin plus a few of the other tools that come with squirrelmail.

I'm careful myself not to give email address out except for throwaway address.

I get personally one spam every couple of weeks.

My customers who are not careful still get a hefty volume but its under reasonable control.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
renarios
Trusted Contributor

Re: how successful is spamassassin in your firm ?

Hi Chris,

I also use spamcop. Since then my spam mails are reduced with 99%.
You can enable this by adding the line:
dnl # Anti spam
FEATURE(`enhdnsbl', `bl.spamcop.net', `"Spam blocked see: http://spamcop.net/bl.shtml?"$&{client_addr}', `t')dnl
Visit www.spamcop.net before and read well.

Good luck!

Cheerio,

Renarios
Nothing is more successfull as failure
Gopi Sekar
Honored Contributor

Re: how successful is spamassassin in your firm ?


i have used spamassassin with Razor and online list of blacklisted ip address.

it reduced spam by over 80% with one single catch that it required internet connection and delayed mail delivery process.

spamassassin if called via sendmail gets forked for each new mail to check for spam, so if your server gets more than 30 mails per minute then that many instances of spamassassin will be running and its more likely that your server goes for a toss.

spamd, daemonized version of spamassassin, works great in this kind of scenario.

Regards,
Gopi
Never Never Never Giveup
Bejoy C Alias
Respected Contributor

Re: how successful is spamassassin in your firm ?

Hi,
I will suggest products like Trend Micro's IMSS, if u can afford , which we are using in our company and we r able to filter spam and virus mails at less than 1 % false positives ( more than 99% is true positives as per our logs ) .
Be Always Joy ......
'chris'
Super Advisor

Re: how successful is spamassassin in your firm ?

but is it Trend Micro's IMSS for free like spamassasin or it costs money ?
Bejoy C Alias
Respected Contributor

Re: how successful is spamassassin in your firm ?

Trend Micro is not free , that is why i wrote u can go for it if u can afford...
But it is a better solution if u can buy this product.
Be Always Joy ......