MailScanner and BlackList

Daniel Kleinsinger danielk at AVALONPUB.COM
Mon Aug 4 05:46:04 IST 2003


If you wanted to improve it slightly, a feature I was looking for when I
used MS for blacklists (I let SA do it now) was the ability to include
lists of trusted MX servers (like the secondary MX for a domain, or a
free email forwarding type server) that MS would look one step past in
its blacklist checks.  For example, I have an account at myrealbox that
forwards to my main email account which is protected by MS.  If I
understand how it works now, MS only checked myrealbox's server on the
blacklists.  It would have been cool if I could have told MS to "trust"
myrealbox which would then make it look at the SMTP server before
myrealbox's.  Seems like it would be a pretty simple change.  As far as
I can tell, it would give you most of the utility of checking every
received header, but still just requiring a single check.  Any received
header not from a local/trusted SMTP server could be forged anyway.

Daniel

Julian Field wrote:

> MailScanner on its own just looks at the first one (well, it looks at the
> real SMTP client IP which *should* be the same as the first one). But it
> doesn't look at any others.
>
> However, SpamAssassin does check them all and assign an appropriate score
> if it finds any in a blacklist.
> That's why I didn't bother implementing "check them all" in
> MailScanner as
> there was already a way of doing it anyway.
>
> At 16:18 01/08/2003, you wrote:
>
>> Hello MailScanner,
>>
>> We have an outside Spam and Virus filtering
>> service from Postini.com as well as server side.  With this
>> outside filter all email messages come from postini servers.
>>
>> The headers do contain the original 'received' lines which does
>> include the orignal senders IP address.
>>
>> Does the BlackList feature in MailScanner look at all the 'received'
>> lines and their  the IP's?
>>
>>
>> Best regards,
>> Robert B, NTIN                           mailto:pages at ntin.net
>
>
> --
> Julian Field
> www.MailScanner.info
> Professional Support Services at www.MailScanner.biz
> MailScanner thanks transtec Computers for their support



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