[156015] in North American Network Operators' Group

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Re: Blocking MX query

daemon@ATHENA.MIT.EDU (Ray Wong)
Tue Sep 4 11:48:38 2012

In-Reply-To: <22236243.23098.1346769881533.JavaMail.root@benjamin.baylink.com>
Date: Tue, 4 Sep 2012 08:47:41 -0700
From: Ray Wong <rayw@rayw.net>
To: Jay Ashworth <jra@baylink.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Tue, Sep 4, 2012 at 7:44 AM, Jay Ashworth <jra@baylink.com> wrote:
> ----- Original Message -----
>> From: "William Herrin" <bill@herrin.us>
>
>> There are no "good" subscribers trying to send email direct to a
>> remote port 25 from behind a NAT.
>
> Users, like myself, running Linux on home computers and laptops; our local
> sendmail-equivalents will in fact attempt direct delivery to remote SMTP MX
> servers, and we generally move around enough that setting a smarthost is
> semi-impractical, at least on laptops.

OpenVPN, et al...

nice for being able to not only relay via the home server, but also
access SMB or even NFS shares and the like, which you'd also not want
reachable from the outside.


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