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From David Jones <>
Subject Re: New whitelisting trick using from and spf
Date Mon, 06 Mar 2017 01:59:28 GMT
>From: Marc Perkel <>
>Sent: Sunday, March 5, 2017 12:38 PM
>Subject: New whitelisting trick using from and spf
>Well, new to me. Maybe others have thought of this.

Been doing this for a couple of years now.

>What I'm doing now is whitelisting the domains that are good, but doing 
>SPF checks on the from address.

whitelist_auth does this against SPF_PASS and DKIM_VALID_AU

>If the from address is whitelisted AND the SPF of the from address is 
>good - I pass the email.

I sent an email to the list about a month ago trying to explain this
and see if there was any interest in setting up something to share
these lists via saupdate just like is done in the

I have over 3,000 whitelist_auth entries now and growing weekly
based on low scores during the past week and some other characteristics.

Seems like we could setup a clearinghouse much like the masscheck
where entries could be submitted and then evaluated for approval.

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