[Mimedefang] MX -> 127.0.0.1

Mack roaringpenguin.com at bass-speaker.com
Mon Sep 12 17:28:42 EDT 2005


The Sef firewall (formally know as raptor) 's mail proxy will reject any
connection (ie drop it once resovled before proxying to the mail server)
that has that set and an MX record, as it considers anything publishing
private address space as suspect.

Cheers

Mack


>I would reject mail from a domain that does that.  If I publish
>192.168.1.1 as an MX record, all kinds of bad things could happen
>if outside senders sent me mail, from mail being bounced to sensitive
>information falling into the wrong hands.  It's a really dumb idea
>to publish MX records that resolve to private addresses.
>
>Regards,
>
>David.


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