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From Per Jessen <>
Subject Re: Points for missing MX Records
Date Wed, 23 Feb 2011 12:22:22 GMT
Henry | Security Division wrote:

>  Hi Martin,
>  i know what you mean. Your sender domain is There are
>  two MX records in your DNS Zone. So that´s fine. I just want
>  Spamassassin to flag mails from senders who have no MX Records. I
>  have tested this anti-spam mechanism in a big environment on a
>  commercial mailgateway and much spam is filtered just by this rule.
>  It caused some false positives in the beginning of course but I
>  personally think that everybody who sends mails should also have MX
>  records to receive mails!

The "default" MX is the A-record for the domain. 

/Per Jessen, Zürich

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