Re: (postfix) SPAM filter?

2007-12-19 Thread Jorn Argelo
Eric Crist wrote: On Dec 17, 2007, at 2:36 AM, Jorn Argelo wrote: On Mon, 17 Dec 2007 00:20:50 +0530, Girish Venkatachalam [EMAIL PROTECTED] wrote: On 14:48:35 Dec 15, Jorn Argelo wrote: Greylisting only works so-so nowadays. There was a couple of months it was very effective, but that

Re: (postfix) SPAM filter?

2007-12-18 Thread Chuck Swiger
On Dec 17, 2007, at 7:56 AM, Eric Crist wrote: I hear a lot of people saying that greylisting doesn't work, when I have actual numbers for my network proving it does. These numbers are from the first week of May 2007 to today: Greylisted/Rejected Messages: 187560 Spam Tagged Messages:

Re: (postfix) SPAM filter?

2007-12-17 Thread Jorn Argelo
On Mon, 17 Dec 2007 00:20:50 +0530, Girish Venkatachalam [EMAIL PROTECTED] wrote: On 14:48:35 Dec 15, Jorn Argelo wrote: Greylisting only works so-so nowadays. There was a couple of months it was very effective, but that is long gone. Spammers aren't stupid, and they follow the development

Re: (postfix) SPAM filter?

2007-12-17 Thread Eric Crist
On Dec 17, 2007, at 2:36 AM, Jorn Argelo wrote: On Mon, 17 Dec 2007 00:20:50 +0530, Girish Venkatachalam [EMAIL PROTECTED] wrote: On 14:48:35 Dec 15, Jorn Argelo wrote: Greylisting only works so-so nowadays. There was a couple of months it was very effective, but that is long gone.

Re: (postfix) SPAM filter?

2007-12-16 Thread Jorn Argelo
Heiko Wundram (Beenic) wrote: Am Donnerstag, 13. Dezember 2007 03:12:53 schrieb Chuck Swiger: Install the following: /usr/ports/mail/postfix-policyd-weight /usr/ports/mail/postgrey Just as an added suggestion: these two (very!) lightweight packages suffice to keep SPAM out of our

Re: (postfix) SPAM filter?

2007-12-16 Thread Girish Venkatachalam
On 14:48:35 Dec 15, Jorn Argelo wrote: Greylisting only works so-so nowadays. There was a couple of months it was very effective, but that is long gone. Spammers aren't stupid, and they follow the development of anti-spam techniques as much as e-mail admins do. Greylisting is a start, but

Re: (postfix) SPAM filter?

2007-12-16 Thread Heiko Wundram (Beenic)
Am Samstag, 15. Dezember 2007 14:48:35 schrieb Jorn Argelo: snip Also I believe that rejecting e-mail is a big point of discussion. We had an internet e-mail environment built about 3 years ago, and there the users were terrorized by spam. We had some users getting 30 spam mails a day at

Re: (postfix) SPAM filter?

2007-12-16 Thread Paul Schmehl
--On December 16, 2007 8:13:34 PM +0100 Heiko Wundram (Beenic) [EMAIL PROTECTED] wrote: Neither of the two packages I recommended are anything close to bayesian filtering, as they don't actually take measure on the content of the mail (which isn't available anyway when the corresponding rules

Re: (postfix) SPAM filter?

2007-12-16 Thread Jack Raats
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Sten and the rest, We have a need for a relatively painless anti-spam solution that would reduce the amount of incoming spam (via postfix mail router). The problem is that i have little knowledge on what this actually means. Googling reveals a

Re: (postfix) SPAM filter?

2007-12-14 Thread Preston Hagar
I have found spam assassin with nightly updates of the helpful (there are other people developing new regexs daily). 48 5 * * * /usr/local/bin/sa-update --channel updates.spamassassin.org /usr/local/etc/rc.d/sa-spamd restart There are other channels you can subscribe to.

RE: (postfix) SPAM filter?

2007-12-13 Thread Paul Hamilton
Hi Sten, I ran /usr/ports/security/amavisd-new for a year or so. I must admit, I didn't update it so more and more spam made it's way through. A mate tipped me off on trying: /usr/ports/mail/mailscanner Much easier to install than amavisd-new. I found it easier to understand the config

Re: (postfix) SPAM filter?

2007-12-13 Thread Sten Daniel Soersdal
Rudy wrote: Steve Bertrand wrote: * Once it is setup then it would require no additional maintenance. * Potential spam messages are marked with a special header that can be filtered on user discretion on their local mail client software. Yes, one recommendation for sure. Give up on your

Re: (postfix) SPAM filter?

2007-12-12 Thread Beech Rintoul
On Wednesday 12 December 2007, Sten Daniel Soersdal said: We have a need for a relatively painless anti-spam solution that would reduce the amount of incoming spam (via postfix mail router). The problem is that i have little knowledge on what this actually means. Googling reveals a whole

Re: (postfix) SPAM filter?

2007-12-12 Thread Steve Bertrand
Sten Daniel Soersdal wrote: We have a need for a relatively painless anti-spam solution that would reduce the amount of incoming spam (via postfix mail router). The problem is that i have little knowledge on what this actually means. Googling reveals a whole universe of interesting ways but

Re: (postfix) SPAM filter?

2007-12-12 Thread Steve Bertrand
* Once it is setup then it would require no additional maintenance. * Potential spam messages are marked with a special header that can be filtered on user discretion on their local mail client software. Neither performance, scalability, license nor cost is of much importance to me at this

Re: (postfix) SPAM filter?

2007-12-12 Thread Beech Rintoul
On Wednesday 12 December 2007, Sten Daniel Soersdal said: We have a need for a relatively painless anti-spam solution that would reduce the amount of incoming spam (via postfix mail router). The problem is that i have little knowledge on what this actually means. Googling reveals a whole

Re: (postfix) SPAM filter?

2007-12-12 Thread Chuck Swiger
On Dec 12, 2007, at 5:12 PM, Sten Daniel Soersdal wrote: We have a need for a relatively painless anti-spam solution that would reduce the amount of incoming spam (via postfix mail router). The problem is that i have little knowledge on what this actually means. Googling reveals a whole

Re: (postfix) SPAM filter?

2007-12-12 Thread Duane Hill
On Wed, 12 Dec 2007 20:55:45 -0500 Steve Bertrand [EMAIL PROTECTED] wrote: I was going to recommend that, but from my experience, there is no real *easy* way to allow users directly to modify their own settings. I am probably wrong though. Postfix is running here on a FreeBSD server as a

Re: (postfix) SPAM filter?

2007-12-12 Thread Pollywog
On Thursday 13 December 2007 03:35:00 Duane Hill wrote: It has been pretty low maintenance. I am in the process of evaluating the possibility of using amavis-new. I used amavis-new on a Linux system and lost the ability to have per-user settings. I had to go with a systemwide setting and I

Re: (postfix) SPAM filter?

2007-12-12 Thread Steve Bertrand
Duane Hill wrote: On Wed, 12 Dec 2007 20:55:45 -0500 Steve Bertrand [EMAIL PROTECTED] wrote: I was going to recommend that, but from my experience, there is no real *easy* way to allow users directly to modify their own settings. I am probably wrong though. Postfix is running here on a

Re: (postfix) SPAM filter?

2007-12-12 Thread Kurt Buff
On 12/12/07, Sten Daniel Soersdal [EMAIL PROTECTED] wrote: We have a need for a relatively painless anti-spam solution that would reduce the amount of incoming spam (via postfix mail router). The problem is that i have little knowledge on what this actually means. Googling reveals a whole

Re: (postfix) SPAM filter?

2007-12-12 Thread Steve Bertrand
* Once it is setup then it would require no additional maintenance. * Potential spam messages are marked with a special header that can be filtered on user discretion on their local mail client software. Yes, one recommendation for sure. Give up on your first goal. It'll never happen,

Re: (postfix) SPAM filter?

2007-12-12 Thread Rudy
Steve Bertrand wrote: * Once it is setup then it would require no additional maintenance. * Potential spam messages are marked with a special header that can be filtered on user discretion on their local mail client software. Yes, one recommendation for sure. Give up on your first goal. It'll

Re: (postfix) SPAM filter?

2007-12-12 Thread Heiko Wundram (Beenic)
Am Donnerstag, 13. Dezember 2007 03:12:53 schrieb Chuck Swiger: Install the following: /usr/ports/mail/postfix-policyd-weight /usr/ports/mail/postgrey Just as an added suggestion: these two (very!) lightweight packages suffice to keep SPAM out of our company pretty much completely. Both are