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List:       openbsd-misc
Subject:    Re: spamd in a cloud setup?
From:       SJP Lists <sjp.lists () flashbsd ! net>
Date:       2010-12-30 4:16:55
Message-ID: AANLkTikh9VWvMeeREAZp8NeAzJe2_AZxaepVKB0-kiO- () mail ! gmail ! com
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On Wednesday, 29 December 2010, Paul de Weerd <weerd@weirdnet.nl> wrote:
> On Wed, Dec 29, 2010 at 10:47:11PM +1100, SJP Lists wrote:
> | This raises the PTR problem.
> |
> | Only one of those domains is going to have records that match forward
> | and reverse?  If not, some anti-SPAM gateways will drop.
>
> How so ?
>
> a.example.com.  IN      MX      10      mx.example.com.
> b.example.com.  IN      MX      10      mx.example.com.
> c.example.com.  IN      MX      10      mx.example.com.
> d.example.com.  IN      MX      10      mx.example.com.
> mx.example.com. IN      A       192.0.2.1
> mx.example.com. IN      AAAA    2001:db8::1
> 1.2.0.192.in-addr.arpa. IN      PTR     mx.example.com.
> 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.  
    IN      PTR     mx.example.com.
>
> Why does your MX have to live in the same zone as what it's MX'ing
> for ?
>
> Paul 'WEiRD' de Weerd
>
> --
>>++++++++[<++++++++++>-]<+++++++.>+++[<------>-]<.>+++[<+
> +++++++++++>-]<.>++[<------------>-]<+.--------------.[-]
>                  http://www.weirdnet.nl/
>

Ah yes, true.  Spoke too soon!  Appologies!

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