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Re: [Asrg] IPv6 spam data

To: asrg at ietf.org
Subject: Re: [Asrg] IPv6 spam data
From: Florian Weimer <fw at deneb.enyo.de>
Date: Tue, 05 Aug 2008 23:25:24 +0200
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In-reply-to: <20080804085357.GD8995@login.ecs.soton.ac.uk> (Tim Chown's message of "Mon, 4 Aug 2008 09:53:57 +0100")
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* Tim Chown:

> If people want advice on dual-stack MX setup, see RFC3974.   This
> document is 3 years old, but I believe what it says is still considered
> best practice.  

Note that the lowest-numbered MX must have an A record, otherwise you
receive bounces from overzealous spam filters.  IIRC, this isn't
mentioned anywhere in the document.
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References:
- [Asrg] IPv6 spam data
  - From: Tim Chown

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