Great Circle Associates Firewalls
(February 1996)
 

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Subject: firewalls, email, and dns
From: "Lehrer, Neil" <nlehrer @ usia . gov>
Organization: USIA
Date: Wed, 7 Feb 96 10:42:40 -0500
To: firewalls @ greatcircle . com

hi,

our smtp mail server is an smtp/mhs gateway that runs on DOS.  since it 
does not have the traditional sendmail vulnerabilities can I/should I 
allow smtp traffic through a firewall to it rather than having a mail 
forwarder outside the firewall receive the mail and send it to the 
gateway?  yes/no?   and if yes, are there any other considerations, for 
example, how should i set up the internal and external dns's?  

cc to my email would be great.

thanks.


Regards                                     


+++++++++++++++++++++++++++++++++++++++
+ Neil Lehrer                       
+ U.S. Information Agency         
+ Networks and Systems Support Division
+                                   
+ voice    202 619-0903             
+ fax      202 619-3883             
+ internet nlehrer @
 usia .
 gov         
+                                   
+ "oh what a tangled net we weave   
+  when we seek to retrieve."       
+                                  
+++++++++++++++++++++++++++++++++++++++


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