You can use POP3, IMAP or HTTP to allow users access to their email.
As far as I can see MS POP and IMAP dont have the problem of *nix type OS's
with regards vulnerabilities in these products.
Therefore you only need to allow one of these ports to be open.
HTTP is the nicest and easiest to use. The others require some technical
knowledge to configure the clients. You can even get SSL running on the
login screen and mailboxes so that they are somewhat secure.

You would be best to reverse proxy, or port map the services through rather
than allowing open access to the exchange server's http port.
I guess you could "hide" the port at some uncommon socket as well for
slightly more security etc http://mail.acme.com:1234

Richard

-----Original Message-----
From: Puetz, Scott [mailto:[EMAIL PROTECTED]]
Sent: 09 October 2000 16:10
To: Firewalls Firewalls (E-mail)
Subject: basics


* Please Note : This message was received from the Internet *
_____________________________________________________________

Please pardon the very GREEN question but I�ve done some research on the
internet and have not found an answer.

I want remote users who have DSL lines to access there mail from our
Exchange server.

I�ve read of the dangers of leaving port 25 open via a firewall, but, other
than dialing in, what other methods are others deploying that would allow
users to safely access their email remotely?


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