Mailing List Archive

Hi,

I would recommend using a setup similar to what we're using. First of all,
we use RedHat Linux 7.3, which has served well for us. We use this in
combination with Postfix's transport.map file. Essentially, the MX record
would point to this linux machine, which would also be running spamassassin,
clamav, etc. The mail is scanned, and quarantined/deleted as desired.
Then, the mail that passes goes to the transport.map file, and finds the IP
address of your Windows Exchange server, and Postfix will forward the
message to the server to be accepted.

Richard

_____

From: Mark A. DeMichele [mailto:demi@intellipro.com]
Sent: Sunday, March 07, 2004 9:53 AM
To: spamassassin-users@incubator.apache.org
Subject: Attemping to leave Windows

Ok, after several weeks of investigating and toying with the idea of making
a SPAMD/SPAMC-like version for windows, and finding a cheap windows SMTP
proxy for my Exchange server (or making an SMTP event sink), I've decided
that it might be easier, or at least less painful, to set up a linux box and
use it as a proxy. The added benefit will be that I can use ClamAV as well
to check for viruses.
I am an extremely novice "unix" user. Actually, my experience was about 12
years ago using SCO Xenix. You can tell it's been long because I can't
remember how to spell it. Anyway, I was wondering for everyone's opinion on
what would be the path of least resistance.
First, I have to decide on an OS (i.e., Red Hat, Mandrake, FreeBSD, etc).
Now remember, I just want to use this box as an SMTP proxy for my Exchange
2000 server, so I don't need anything fancy. I also want to limit the
amount of stuff I need to do to set this up.
Second, I have to figure out what's the easiest SMTP server software to set
up that I can hook into spam assassin and clamav and the forward all the
message to my Exchange Server. I don't need a POP interface if that helps.
Any information on this would be appreciated. If you know of any
instructions of any kind relating to this stuff on the web, please include
the links.
Thanks,
Mark DeMichele

http://www.flakshack.com/anti-spam/
http://www.geocities.com/scottlhenderson/spamfilter.html
http://www.advosys.ca/papers/postfix-filtering.html
http://www.sng.ecs.soton.ac.uk/mailscanner/

I use FreeBSD, Postfix, Pyzor, DCC, and Razor2. For stats I use the
spamstats script from http://www.gryzor.com/tools/ and pflogsumm from
http://www.gryzor.com/tools/
________________________________

From: Mark A. DeMichele [mailto:demi@intellipro.com]
Sent: Sunday, March 07, 2004 8:53 AM
To: spamassassin-users@incubator.apache.org
Subject: Attemping to leave Windows



Ok, after several weeks of investigating and toying with the idea of
making a SPAMD/SPAMC-like version for windows, and finding a cheap
windows SMTP proxy for my Exchange server (or making an SMTP event
sink), I've decided that it might be easier, or at least less painful,
to set up a linux box and use it as a proxy. The added benefit will be
that I can use ClamAV as well to check for viruses.

I am an extremely novice "unix" user. Actually, my experience was about
12 years ago using SCO Xenix. You can tell it's been long because I
can't remember how to spell it. Anyway, I was wondering for everyone's
opinion on what would be the path of least resistance.

First, I have to decide on an OS (i.e., Red Hat, Mandrake, FreeBSD,
etc). Now remember, I just want to use this box as an SMTP proxy for my
Exchange 2000 server, so I don't need anything fancy. I also want to
limit the amount of stuff I need to do to set this up.

Second, I have to figure out what's the easiest SMTP server software to
set up that I can hook into spam assassin and clamav and the forward all
the message to my Exchange Server. I don't need a POP interface if that
helps.

Any information on this would be appreciated. If you know of any
instructions of any kind relating to this stuff on the web, please
include the links.

Thanks,

Mark DeMichele

> -----Original Message-----
> From: Tom Meunier [mailto:Tom.Meunier@courts.state.tx.us]
> Sent: Sunday, March 07, 2004 10:20 AM
> To: Mark A. DeMichele; spamassassin-users@incubator.apache.org
> Subject: RE: Attemping to leave Windows
>
> http://www.flakshack.com/anti-spam/
> http://www.geocities.com/scottlhenderson/spamfilter.html
> http://www.advosys.ca/papers/postfix-filtering.html
> http://www.sng.ecs.soton.ac.uk/mailscanner/
>
> I use FreeBSD, Postfix, Pyzor, DCC, and Razor2. For stats I use the
> spamstats script from http://www.gryzor.com/tools/ and pflogsumm from
> http://www.gryzor.com/tools/
> ________________________________


Thanks so much. These links are just what I was looking for. I have
one question though. Where does MailScanner fit in?

Also, if I'm just going to use this as a proxy, how big of a hard drive
do you think I need? The first link recommends a several gig. I can't
believe that I'll need that much.

Thanks,
Mark

I use Suse 9.0 with Postfix and spamc/d called via a simple shell script.

Postfix is great, doddle to configure (I'm also very much a novice), though
if you want to use Antivirus you'll probably need to look at something such
as Amavisd-new which glues the MTA and the AV together.

regards,
Paul

-----Original Message-----
From: Mark A. DeMichele [mailto:demi@intellipro.com]
Sent: Sunday, March 07, 2004 2:53 PM
To: spamassassin-users@incubator.apache.org
Subject: Attemping to leave Windows


Ok, after several weeks of investigating and toying with the idea of making
a SPAMD/SPAMC-like version for windows, and finding a cheap windows SMTP
proxy for my Exchange server (or making an SMTP event sink), I've decided
that it might be easier, or at least less painful, to set up a linux box and
use it as a proxy. The added benefit will be that I can use ClamAV as well
to check for viruses.
I am an extremely novice "unix" user. Actually, my experience was about 12
years ago using SCO Xenix. You can tell it's been long because I can't
remember how to spell it. Anyway, I was wondering for everyone's opinion on
what would be the path of least resistance.
First, I have to decide on an OS (i.e., Red Hat, Mandrake, FreeBSD, etc).
Now remember, I just want to use this box as an SMTP proxy for my Exchange
2000 server, so I don't need anything fancy. I also want to limit the
amount of stuff I need to do to set this up.
Second, I have to figure out what's the easiest SMTP server software to set
up that I can hook into spam assassin and clamav and the forward all the
message to my Exchange Server. I don't need a POP interface if that helps.
Any information on this would be appreciated. If you know of any
instructions of any kind relating to this stuff on the web, please include
the links.
Thanks,
Mark DeMichele

We are running an old 150mhz P5-clone with probably 48MB of mem and probably
at least a 3G drive, if not larger. The RH RPMs can take up a fair amount
of space. you can get it down smaller, but it will be a bunch of work.

Joanne is the Linux dweeb around here and runs that system, and she will
doubtless have more comments later. However, I know we are running it as a
combination proxy/firewall more than as a mail server in its own right. We
aren't running any of the SA network checks, and so far haven't seen any
need to. Between Bayes and keeping up with the newer rule sets almost
nothing is making it through.

Loren

From: "Mark A. DeMichele" <demi@intellipro.com>
> > From: Tom Meunier [mailto:Tom.Meunier@courts.state.tx.us]

> > http://www.flakshack.com/anti-spam/
> > http://www.geocities.com/scottlhenderson/spamfilter.html
> > http://www.advosys.ca/papers/postfix-filtering.html
> > http://www.sng.ecs.soton.ac.uk/mailscanner/
> >
> > I use FreeBSD, Postfix, Pyzor, DCC, and Razor2. For stats I use the
> > spamstats script from http://www.gryzor.com/tools/ and pflogsumm from
> > http://www.gryzor.com/tools/
> > ________________________________
>
>
> Thanks so much. These links are just what I was looking for. I have
> one question though. Where does MailScanner fit in?
>
> Also, if I'm just going to use this as a proxy, how big of a hard drive
> do you think I need? The first link recommends a several gig. I can't
> believe that I'll need that much.

Mark, can you but one less than 40 gigs these days? If you are setting
up a machine you intend to be pretty much up full time for months on
end I'd recommend against recycling 5 year old drives.

{^_^}

From: "Loren Wilton" <lwilton@earthlink.net>

> We are running an old 150mhz P5-clone with probably 48MB of mem and
probably
> at least a 3G drive, if not larger. The RH RPMs can take up a fair amount
> of space. you can get it down smaller, but it will be a bunch of work.
>
> Joanne is the Linux dweeb around here and runs that system, and she will
> doubtless have more comments later. However, I know we are running it as
a
> combination proxy/firewall more than as a mail server in its own right.
We
> aren't running any of the SA network checks, and so far haven't seen any
> need to. Between Bayes and keeping up with the newer rule sets almost
> nothing is making it through.
>
> Loren

Actually the 66MHz machine that had 48 megs is retired. This machine has
enough to actually limp along with X.
--8<--
Linux version 2.4.20-30.9 (bhcompile@porky.devel.redhat.com) (gcc version
3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 Wed Feb 4 20:51:48 EST 2004
...
256MB LOWMEM available.
...
Initializing CPU#0
Detected 167.048 MHz processor.
--8<--

It has two disks on it. One if the survivor of the old system "just in
case". It's a 3.25 gig baby. The other is a 40 gig monster of a modest
number of years ago.

I found "stuff" to put onto it amounting to maybe 30 to 40% usage. Kernel
sources eat a lot of space. So does a set of Redhat 9 ISOs and all the
updates. (The 3.25 G old drive isn't even mounted at this time.)

{^_^}

On 07 Mar 2004, at 07:53, Mark A. DeMichele wrote:
> Ok, after several weeks of investigating and toying with the idea of
> making a SPAMD/SPAMC-like version for windows, and finding a cheap
> windows SMTP proxy for my Exchange server (or making an SMTP event
> sink), I’ve decided that it might be easier, or at least less painful,
> to set up a linux box and use it as a proxy.

Good plan.

> The added benefit will be that I can use ClamAV as well to check for
> viruses.

One of many added benefits.

> First, I have to decide on an OS (i.e., Red Hat, Mandrake, FreeBSD,
> etc).  Now remember, I just want to use this box as an SMTP proxy for
> my Exchange 2000 server, so I don’t need anything fancy.  I also want
> to limit the amount of stuff I need to do to set this up.

FreeBSD and postfix. Dead simple to setup and you can run a decent
proxy on a very low-end machine (got a 486 somewhere?).

> Second, I have to figure out what’s the easiest SMTP server software
> to set up that I can hook into spam assassin and clamav and the
> forward all the message to my Exchange Server.  I don’t need a POP
> interface if that helps.

I would say postfix is going to be the simplest to setup.

www.freebsd.org
www.postfix.org

--
There are 10 types of people in the world: Those who understand binary,
and those who don't.

From: "LuKreme" <kremels@kreme.com>

> There are 10 types of people in the world: Those who understand binary,
> and those who don't.

And then there are those who can count to 1111111111 on their fingers.
{O,o}

There's way to many that only know the number 4 in binary!

-----Original Message-----
From: jdow [mailto:jdow@earthlink.net]
Sent: Sunday, March 07, 2004 3:47 PM
To: spamassassin-users@incubator.apache.org
Subject: Re: Attemping to leave Windows

From: "LuKreme" <kremels@kreme.com>

> There are 10 types of people in the world: Those who understand
binary,
> and those who don't.

And then there are those who can count to 1111111111 on their fingers.
{O,o}

Go buy whatever Emachine is on sale ($300) and a dlink 530tx+ card ($12)
and you won't need to upgrade for a long long time...

But if your business is dependent upon email I would recommend to use
the oldest thing in the closet :)... Then email us after the HW dies.

Gary

-----Original Message-----
From: jdow [mailto:jdow@earthlink.net]
Sent: Sunday, March 07, 2004 1:20 PM
To: spamassassin-users@incubator.apache.org
Subject: Re: Attemping to leave Windows

From: "Mark A. DeMichele" <demi@intellipro.com>
> > From: Tom Meunier [mailto:Tom.Meunier@courts.state.tx.us]

> > http://www.flakshack.com/anti-spam/
> > http://www.geocities.com/scottlhenderson/spamfilter.html
> > http://www.advosys.ca/papers/postfix-filtering.html
> > http://www.sng.ecs.soton.ac.uk/mailscanner/
> >
> > I use FreeBSD, Postfix, Pyzor, DCC, and Razor2. For stats I use the
> > spamstats script from http://www.gryzor.com/tools/ and pflogsumm
from
> > http://www.gryzor.com/tools/
> > ________________________________
>
>
> Thanks so much. These links are just what I was looking for. I have
> one question though. Where does MailScanner fit in?
>
> Also, if I'm just going to use this as a proxy, how big of a hard
drive
> do you think I need? The first link recommends a several gig. I
can't
> believe that I'll need that much.

Mark, can you but one less than 40 gigs these days? If you are setting
up a machine you intend to be pretty much up full time for months on
end I'd recommend against recycling 5 year old drives.

{^_^}