[NTLUG:Discuss] More spamshield project

[Stuart Johnston]

If you are inclined towards sendmail, then, yes, mailscanner is the way 
to go.  Here is the official site:

http://www.mailscanner.info/

. Daniel wrote:
> At the very least, I hope to have this process documented well enough that 
> just about anyone could follow the instructions.  I've never made a distro 
> CD or live CD of any kind before and not sure where I would start.
> 
> NTLUG has some talent and ability within for sure.  And really, as it is, I 
> could leave it just as greylisting with user verification via AD/Kerberos 
> and it would be an excellent device.  Here at home, my mail server is 
> essentially the same sort of "out of the box, barely tweaked" 
> configuration.  Seems that SpamAssassin is preconfigured for local 
> delivery.  If I could get some good how-to on how to make it filter ALL 
> incoming mail, I'd be just about done.  I keep getting the feeling that I'm 
> a fraction of an inch away from success on that.
> 
> But last night in my searches, I came across another site:
> 
> http://www.leap-cf.org/presentations/MailScanner/MailScanner.html
> 
> It's not what I originally set out to do, but it looks like it would get 
> the job done.  Last night I fell asleep while doing the install of the 
> mail-scanner package which is a clever collection of source RPMs tied 
> together with an install.sh script.  I must admit it's rather novel.  And 
> since the page is built around CentOS 4.4, I have a pretty good chance at 
> success by following those instructions-- they seem well written.
> 
> If that works out as I expect it will, then perhaps *IT* will be the 
> makings of your appliance setup.  As the name implies, I believe it does 
> content filtering and all that.
> 
> 
>> I have nothing to add, but keep up the good work! Sounds like the
>> makings of a cool appliance CD. As a network engineer I have had to
>> support exchange and I really hate it and outlook with a raging passion.
>>   For those clients of mine that insist, a bundled CentOS CD with all
>> this stuff in a raw pre-fab format would be a god-send.
>>
>>
>> . Daniel wrote:
>>> Just to recap, here's what I've got so far:
>>>
>>> The goal is to make an external SMTP relay box that checks for spam and
>>> eventually forbidden attachments and sends the good stuff on to an 
> internal
>>> MS Exchange server.
>>>
>>> What works:
>>> * CentOS and the basics (sendmail, webmin, etc)
>>> * Greylisting (Endless thanks to Wayne)
>>> * Connecting to the Active Directory to test for valid accounts (Thanks 
> to
>>> Chris!)
>>> * Relaying incoming mail to Exchange via SMTP (piece of cake)
>>>
>>> What doesn't work:
>>> * SpamAssassin isn't checking the relayed email.
>>>   (It does check local delivery though. Procmail calls SpamAssassin.)
>>> * Forbidden attachment scanning (haven't even gotten there yet)
>>>
>>> I have gotten to the point where I am too sleepy to think or read any
>>> further.  This combination of tools and the goals are not unique.  I 
> just
>>> haven't found the missing details yet.  I'm guessing somene here 
> already
>>> knows the answer though.  Anyone got anything?
>>>
>>> _________________________________________________________________
>>>
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>> --
>> Jay Urish CCNA    Network Engineer
>> http://jay.unixwolf.net
>> Home)972.691.0125    Cell)972.965.6229
>>
>>
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> 
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