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Then you have probably correctly set it up, or, you have just allowed all
SMTP traffic at your gateway.
Found the pdf from MessageLabs:
http://images.messagelabs.com/EmailResources/ImplementationGuides/Subnet_IP.pdf
Think about it, in order to filter your email, you must change your MX
records to direct inbound mail to MessageLabs, they in turn forward it
(after processing/filtering/recording/archiving.. whatever else you pay them
to do) to you. In order to maximise the functionality, and get the most for
your dollar, it is a good idea to stop anyone else from being able to bypass
this process by allowing them to send mail directly to your server.
The guide lists the IP ranges that you should accept email from, and, in
your email from MessageLabs, you would have received an IP or domain address
to forward outbound mail to. This should also be locked down at your gateway
so your users (should they become infected or malicious), can't spam others
abusing your good online name.
A
\ /
Putting the F in BOFH!
2009/11/16 shane brennan <[email protected]>
> Hi
>
> We use it in work. havent received any notification like that
>
> Shane
>
>
> On Tue, Nov 10, 2009 at 9:06 PM, Brian Loe <[email protected]> wrote:
> > Anyone here using message labs? Have you received notice that you MUST
> > open up your firewall for 8 or so networks?
> > _______________________________________________
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> > [email protected]
> > https://listserv.icsalabs.com/mailman/listinfo/firewall-wizards
> >
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