whitelist issues

Ken Anderson ka at PACIFIC.NET
Wed Oct 1 17:21:27 IST 2003

Actually mail from this list comes in like this:

Oct  1 07:59:53 mail sm-mta[15866]: h91ExqJ5015866:
from=<owner-mailscanner at JISCMAIL.AC.UK>, size=1835, class=-30, nrcpts=1,
msgid=<8FFC76593085ED4A80D3601BC41EFCDF0C0804 at inex1.herffjones.hj-int>,
proto=ESMTP, daemon=MTA, relay=mailfilter.pacific.net []

So, you can whitelist the list, or the domain. There's also some way to
get this address into the message header, so this detective work isn't
necessary, but I can't recall whether that's a sendmail config, or a
MS/SA config change. Anybody?

Ken A.

Furnish, Trever G wrote:

>>-----Original Message-----
>>From: Bret Hughes [mailto:bhughes at ELEVATING.COM]
>>Sent: Tuesday, September 30, 2003 11:37 PM
>>Subject: whitelist issues {Scanned by HJMS}
>>[root at mail1 rules]# cat spam.whitelist.rules
>># This is where you can build a Spam WhiteList
>># Addresses matching in here, with the value
>># "yes" will never be marked as spam.
>>#From:          152.78.         yes
>>#From:          130.246.        yes
>>To:             MAILSCANNER at JISCMAIL.AC.UK      yes
>>FromOrTo:       default         no
>>in MailScanner.conf:
>>[root at mail1 MailScanner]# grep rules-dir MailScanner.conf
>>%rules-dir% = /etc/MailScanner/rules
>>Is Definitely Not Spam = %rules-dir%/spam.whitelist.rules
> I think you're confused about the difference between the address used to
> deliver the message and the address listed in the headers (which are inside
> the message).
> MailScanner sees the address used to deliver the message - ie in this case
> probably bhughes at elevating.com.  That's how the message reaches you and
> that's what you would have to put in your whitelist (which would obviously
> be a bad thing - no more filtering for you).  In effect when your mail
> server receives the message it is neither To nor From the list address - it
> is To you From whoever sent it.
> When the message is delivered to a mailbox and a MUA (Eudora, Pine, Outlook)
> opens it, the MUA displays the headers inside the message and behaves as
> prescribed by those headers.  For example, the replies go to the list, the
> To appears to be the list address, errors go to another address, etc.
> I don't think you can use MailScanner's whitelists to match the headers
> inside the message, so it seems like you're stuck filtering on the sender ip
> address.
> -t.
> PS: Hopefully I'm completely wrong and someone will correct me. :-)

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