On Wed, 23 Feb 2011 13:22:22 +0100, Per Jessen wrote:
Henry | Security Division wrote:
Hi Martin,
i know what you mean. Your sender domain is gregorie.org. 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
Hi Per,
you are right. I´d just like to check for missing mx records.
Here is a draft RFC about that topic "A NULL MX Resource Record means
"I never accept email""
http://tools.ietf.org/html/draft-delany-nullmx-00
I just want to check if the sending MX accepts mails by checking the
existence of MX records. If not -> Points in Spamassassin.
Cheers
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