I work in a Windoze house, contantly looking for a way to integrate Linux. I finally have my chance and would like to pose some questions to the community on the subject of firewalls and POP3.<br><br>First let me start w/ an overview of my network. We are 18 nodes connected via T1/partial T1's on a Frame Relay network. We are using Cisco routers and our firewall is a Cisco PIX. We are in the process of switching over to a new domain and upgrading our firewall to include a spam filtration (Barracuda/Sonicwall). Be advised I am aware of the numerous solutions available in the Open Source realm... alas, I do not make the final decision on hardware purchases <br><br>We have and exchange 2003 sever and a 2003 domain controller that provides internal authentication and email services. One of the features of exchange is <br>outlook web access (similar to squirrel mail) which allows people outside of our internal network to check the email.<br><br>I have been tasked with finding a
solution for configuring a POP 3server to sit in the DMZ of the firewall. This server will provide several functions:<br>- Serve up Outlook Web Access on an Apache Server(which will require communications with the LDAP-based active directory?)<br>- Be configured have the exchange server initiate the opening of port 25 on the POP 3 server to download email. It is preferred that incoming mail be housed on the POP 3serve after hitting the spam filtration device.<br><br>Here are my questions:<br>- Is the solution of placing a POP3 server in the DMZ my best option for protecting my exchange server and serving up web access to email?<br>- Are there any items that I have not considered?<br>- Will I need LDAP running on Linux boxen to ""talk" to active directory<br>- What would be the best way to set up a testing sandbox (ad hoc, through the PIX, etc...)<br><br>Thanks to Ed Brown for pointing me towards dovecot as a solution for my POP3 needs. I hope I have been clear and have
provided enough information... I am still learning. Thank you in advance.<br><BR><BR><p>
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