RE: Exchange Server and External Access

["Rubottom, Karl" <karlr () SHERIDAN EDU>]

Using a front end back end exchange configuration you can have an
exchange server in your DMZ (front end server) and your current Exchange
server would act as your backend.  Remote users can use Outlook Web
Access over https.

Karl Rubottom, CCNA
 

-----Original Message-----
From: Cherian M. Palayoor [mailto:cpalayoor () cwalkergroup com] 
Sent: Friday, August 22, 2003 11:26 AM
To: security-basics () securityfocus com
Subject: Exchange Server and External Access

Hi,

We presently use the Std edition of Exchange 2000 as a mail server for
our
internal users, behind the Firewall.

However we would like to grant mailbox access to external users outside
the
Firewall.

What would be the most secure and efficient method of accomplishing
this. 

One stream of thought that I have been entertaining is having a separate
Exchange/Mail  Server on the DMZ.

Now this solution would result in having to maintain 2 separate
mailboxes for
internal and external users. This creates problems for users who would
access
their emails from both inside and outside the office.

How can I workaround this problem.

Thanks in advance for any suggestions.

Regards

CP


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