[SDBUG] OpenBSD's "spamd" usable on FreeBSD? [ Now careening with Off Topic goodness ]

Fri Feb 9 08:12:39 PST 2007

Jay,
   You are one of those from the blahdblah-ISP as well. I have  
learned many things from Mike. He is the main reason why I am a BSD  
zealot. Back in the day when we met I was using Linux as my machine  
at home. He showed me the light of using FreeBSD.   ;-)

-Ron

On Feb 8, 2007, at 12:33 PM, James, Jay wrote:

> Hola Mike Murphy, long time no see to you. You may not even  
> remember me.
> I learned subnetting from you on-the-fly in a 15 minute hip pocket
> session a long time ago at blahdblah-ISP.
>
>
> After a previous life working as a Unix Admin for a multinational
> conglomerate for 6 years, taking SMTP routing from a Data General MU04
> box to a DX4-100, to eventually 2 Netras, to offloading spam filtering
> through a third party, I have seen the rise of spam from a few a  
> day to
> a hundred thousand a day over that time span. It was a fairly big
> corporation, since swallowed up by a bigger fish.
>
> Anyway, it took me that 6 years to develop my own blacklists, which I
> have migrated to my own home network with fantastic success.
>
> My point being here that it's a daunting task these days to point- 
> blank
> set something up from scratch. Mike, how long did it take you to  
> develop
> your list of 32k+ entries? And even more important, whats the  
> uptime on
> your VAX cluster? I had always wondered if those rolling blackouts
> caught you.
>
>
> Jcj
>
>
>
>
>
>
> -----Original Message-----
> From: sdbug-bounces at sdbug.org [mailto:sdbug-bounces at sdbug.org] On  
> Behalf
> Of Mike Murphy
> Sent: Thursday, February 08, 2007 10:20 AM
> To: San Diego's BSD Users Group
> Subject: RE: [SDBUG] OpenBSD's "spamd" usable on FreeBSD?
>
> The Barracuda is nice. It costs money for the box, the service, and  
> the
> administrator.
>
> Milter-greylist running on FreeBSD with sendmail is nice. SpamBayes on
> the desktop is nice. They are freely available. It costs money for the
> box and the administrator.
>
> I disagree with the statment "you aren't going to get that much spam
> filtering out of it." I have 32K+ greylisted entries current on my
> incoming mail server and 11 whitelisted entries. The 32K+ are spam
> (minus the 11 which is still 32K+ :-) SpamBayes has 6K+ messages on my
> client system that have been identified as spam since 3/2006.  
> That's 6K+
> messages (minus the 200 or so that I dealt with to teach SpamBayes)  
> that
> I didn't have to deal with. The 32K+ messages are what's current in
> milter-greylist for the last 3 days or so. Notice that milter-greylist
> reduces the burden on SpamBayes significantly. I don't want my ISP  
> to do
> spam control; I'd just as soon do it myself. I don't want to deal  
> with a
> web interface to a black-box to classify spam, either. I don't mind if
> my mail is delayed for a half-hour; I have a telephone to coordinate
> lunch plans ;-)
>
> Different strokes for different folks...
>
> (Hi Dave, long time no see)
>
> --Mike
>
> ________________________________
>
> From: sdbug-bounces at sdbug.org on behalf of Miles Teg
> Sent: Wed 2/7/2007 10:14 AM
> To: San Diego's BSD Users Group
> Subject: Re: [SDBUG] OpenBSD's "spamd" usable on FreeBSD?
>
>
>
> You're trying to get your ISP to use this software?  hah!
>
> Considering spam is often sent with legitimate SMTP engines, you  
> aren't
> going to get that much spam filtering out of it, so I fail to see how
> you
> can justify the corresponding 3-5 minute delay in email service.   
> If my
> ISP
> took 3-5 minutes to get emails to my inbox, I would switch  
> services.  If
> it
> somehow blocked all spam, it might be worth it, but anyone using a
> subverted
> or open 3rd party SMTP server as their relay is going to wait the 3-5
> minutes and send you the email again.
>
> Allow me to recommend in its place, a Barracuda Spam Firewall.  This
> "black-box" solution is a Linux box running quite a combination of
> anti-spam
> technologies, including but certainly not limited to SpamAssassin.   
> With
> one
> of these in place at our business, which has some 10 year old email
> addresses that get spammed like there's no tomorrow, I can't recall  
> the
> last
> time I saw a spam email get through untagged.  I used to run my own
> setup
> with RBL lists (which the barracuda has), spam assassin with updated
> rule
> sets, my own custom filters that I would maintain, everything I could
> think
> of.  And it was a huge waste of time.  The effectiveness was mostly
> limited
> to spamassassin and the rbls, and while I was able to take quite a  
> chunk
> out
> of spam, maybe 70%, it didn't even come close to what the barracuda
> achieves.  And now, it's someone else at Barracuda spending their time
> tuning the damned thing instead of me.  It also has anti-virus  
> filtering
> built in.  Since I have installed this unit, complaints about spam  
> have
> gone
> to 0, email viruses infecting my office network have gone to 0, and
> complaints about false positives have gone to 0.
>
> I do not own stock in, nor am I a reseller for, nor am I affiliated in
> any
> way with Barracuda, I am just very satified with their anti-spam
> firewall
> product.  I also use their anti-spyware firewall which uses a squid
> based
> web proxy to filter phishing and spyware sites and downloads.  Both of
> these
> products are based on open source solutions, with the added value of
> having
> the Barracuda people tune and update the rules and tests for the
> products
> constantly.  The units are updated by Barracuda very often, sometimes
> hourly.  The price for the units depends on the size of the unit you
> need,
> but I got the smallest ones and they still handle the traffic  
> easily and
> handle multiple domains.  The yearly cost for the service on the
> anti-spam
> firewall is like $1500 a think, which I spent *way* more than $1500 of
> my
> time per year working on filtering spam, searching for lost false
> positives,
> and removing viruses and spyware from my office lan.
>
> If you're a business owner or IT administrator at any mid-sized
> business, I
> have to recommend the Barracuda anti-spam product.
>
> http://www.barracudanetworks.com/ns/?L=en
>
>
> ----- Original Message -----
> From: "Peter Leftwich" <Hostmaster at Video2Video.Com>
> To: "SDBUG" <SDBug at SDBug.Org>
> Sent: Friday, January 26, 2007 5:37 PM
> Subject: [SDBUG] OpenBSD's "spamd" usable on FreeBSD?
>
>
>> Has anyone used "spamd" on FreeBSD?  I'm trying to get my ISP to use
> it.
>>
>> If I understand it correctly, it is a sendmail clone, but with one
> major
>> difference (improvement?) -- incoming messages are told, "Hollld on a
> sec,
>> let me see if I can deliver your message, please wait 3-5 minutes  
>> then
> try
>> back."  And if the incoming message is a spammer, then THEIR side of
> the
>> sending gives up and does not legitimately retry.
>>
>> The sacrifice is only that the recipient cannot receive a message
>> immediately.
>>
>> But, sounds great!
>>
>> --
>> Peter Leftwich, Owner
>> Video2Video Services
>> Box 13692, La Jolla, CA, 92039, USA
>> http://Www.Video2Video.Com
>> _______________________________________________
>> SDBUG mailing list
>> SDBUG at sdbug.org
>> http://lists.sdbug.org/mailman/listinfo/sdbug
>>
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