Mail serving and firewalls

["Jeffrey M. Carey" <jeffreycarey@xxxxxxx>]

We are planning to implement mail serving (pop3 and stmp) on our
AS/400's with Lotus Mail 4.5 (which came with Client Access) as the
desktop client.  Eventually we'll move to Lotus Notes Desktop and Lotus
Domino (we're waiting for the native AS/400 solution next month).

Currently, we don't have a firewall in place.  In implementing a
firewall, do the mail servers need to be outside the firewall?  Do we
need one (less restrictive) firewall to protect the mail servers and one
more restrictive one to protect the rest of the network?  How does
having various servers physically on one AS/400 affect how we set things
up?  

We currently have 2 AS/400's - a 50S for development and a 530 for
production.  We are running on a TCP/IP token ring LAN. Any input would
be appreciated!
+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to "MIDRANGE-L@midrange.com".
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---