On Wed, 2009-01-21 at 13:28 -0800, Marc Perkel wrote:
> I'm doing an experimental free MX backup service and wondering if it
> will get exploited. I'm wondering if I'm overlooking anything obvious?
> Here's the info on it:
>
> http://www.free-mx-backup.com
>
> The idea is that it detects if we are the secondary and not the primary
> MX and will store and deliver email for those domains. I'm trying to
> think if I'm leaving myself open for anything I'm going to regret. If
> you were a spammer how would you take advantage of this?
The advantages of a basically open mail relay (for some domains)?
$SPAMMER can push *all* mails for these domains there. And if that open
mail relay works like a standard MTA installation, you probably generate
a lot of backscatter for not existing mail addresses.
Or did I miss something?
Bernd
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