These work on v6.04. They probably work on later versions as well unless
IPSwitch made incompatable modifications to their rule file structure with
v7. It'd have to be tested to know for sure.
Steven Plautz
Sr. ISP Systems Admin
Omega Communications - Sybercom
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Dannyk
Sent: Thursday, July 05, 2001 4:55 PM
To: [EMAIL PROTECTED]
Subject: RE: [IMail Forum] spam filters
Do these rules apply to 7.2?
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Steven Plautz
> Sent: Thursday, July 05, 2001 8:07 AM
> To: IMail_Forum@list. ipswitch. com
> Subject: [IMail Forum] spam filters
>
>
> I found the below rules in the rules.ima file takes care of a
> good majority
> of incoming spam with minimal risk of deleting valid messages:
>
> F!~@:NUL
> T!~@:NUL
> H!~\sTo\::NUL
> S~\s\s\s\d\d\d:NUL
> S~adv\::NUL
>
> The first two rules take care of messages without an email address in the
> FROM or TO fields. These seach for the @ character to make sure it's
> present.
> The third filter makes sure the TO field is actually there and deletes any
> messages without it. Isn't the lack of a TO field or not having
> a properly
> formatted email addresses in the TO and FROM fields RFC
> violations? If so,
> no one should feel uneasy about the first 3 filters.
>
> The fourth is the best filter I have found to date. Much of the spam that
> comes in have a number spaced out to the far right on the subject
> line. So
> this filter simply looks for at least 3 spaces preceeding at
> least 3 digits
> in the subject line. You'd be surprised how effective this one filter is!
>
> The last one simple looks for "adv:" in the subject.
>
> Anyone have anymore that are effective and relatively safe from deleting
> valid mail?
>
> Steven Plautz
> Sr. ISP Systems Admin
> Omega Communications - Sybercom
> [EMAIL PROTECTED]
>
>
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>
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