But for just a policy to restrict mail to/from the internet for certain
users would there be any better solution?  This is just the way it's always
been done here.

Cavell McDermott
Network Administrator
Cottonwood Financial
972.753.0822 Office
214.403.4918 Cell
http://www.thecashstore.com


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sanford Whiteman
Sent: Thursday, March 30, 2006 12:37 PM
To: mail-lists
Subject: Re[4]: [Declude.JunkMail] Restrict all email except internal


> Sorry,  I  should  have  elaborated.. But not when you have a domain
> that    does    not    resolve.    As   in   our   case,   we   have
> @cottonwoodfinancial.com  which  is our main domain. Then a separate
> domain @internal.cottonwoodfinancial.com with no MX records. So mail
> being sent to an address on that domain will not go through.

Well,  that's  the  case  with any domain without an MX record. It has
nothing  to  do with whether it's IP-ful or IP-less, or private-IP-ful
or  public-IP-ful,  within  IMail. And, of course, a determined person
could send mail to that domain by hard-coding the mailroute.

I  think  you're  doing  the right thing by making a domain that would
require   malicious/anti-policy   intent  to  receive  mail  from  the
Internet,  but  there's  nothing  _technically_ totally segregating it
from the outside world.

--Sandy



------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
e-mail: [EMAIL PROTECTED]

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