David,
Thanks very much!! That sounds great.

Here, everyone has already gone home for the weekend (we work Sun-Thu),
but I will raise the possibility with the network folks on Sunday morning.

I hope this is not based on a very new linux. I see that the new
ones cannot run on my somewhat antiquated z890.

Thank you again,
Shimon


On Thu, Mar 10, 2011 at 7:34 PM, David Boyes <dbo...@sinenomine.net> wrote:

>
> I was wondering - is it really necessary for them to allow ALL anonymous
> mail, or can it be selectively by IP address? Whoever had a bad dream about
>
> SMTP security, and decided to close the awful breach of anonymous email
> would certainly prefer to allow only the IP of the z/VM system.
>
>
>
> Yes. Exactly how it’s done depends on the remote MTA. For sendmail, it’s
> likely in /etc/mail/access.
>
> With the situation as it is today, that most SMTP servers do seem to
> require
> user/pwd authentication, it seems unfortunate that ours cannot authenticate
> to the network server. Or is that something servers never do between
> themselves,
> just email clients?
>
> It’s something that more and more servers are starting to do (thanks to the
> spam). The quickest solution to this problem is to set up a Linux guest on
> your VM system and use that as a proxy. All of the Linux MTAs can do
> server-to-server authentication.  You then set your VM SMTP to point to that
> guest, and the Linux guest deals with the outside world for you.
>
> I’ve got a prebuilt appliance for this if you want a copy.
>
>
>
> -- db
>
>
>

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