> -----Original Message----- > From: centos-bounces at centos.org > [mailto:centos-bounces at centos.org] On Behalf Of Thom Paine > Sent: Monday, February 02, 2009 10:31 AM > To: CentOS mailing list > Subject: Re: [CentOS] Port Forwarding > > The other issue we are having is that I need to run LDAP on that > server for syncing address books to send email with. So not only do I > need mail and LDAP, but I need ssl and authentication and > certificates. > > I do have another box here that I had planned on using for the > forwarding taks, I suppose that I could set it up to accept mail and > forward to the main server. The main server could still use the smtp > smarthost as the outbound default mailer and go out the second > server's connection? > > I guess what I really need is a Cisco 515 router. I should have > thought of that a while ago..... ---- I am just currious here. Your up to about 2 or 3 mail servers correct? That is for handling 2 different subnets or domains? Lets say domains. Ok? Add on top of that a POP3 or IMAP servers. Now your up to adding in LDAP for user management, slapping in a Cisco PIX 500 Series. How many total users do you need to support? That we don't know. To be completely honest I think your just creating a big mess to keep up with and manage. That is way to much Administration Overhead to put up with in my opinion. I think that your best solution outcome to this is to use Exchange Server 2007. Scalix can't top what your wanting to do or need to do either. Exchange is fully HIPPA and SOX Compliant. You can do with one exchange server what your trying to get accomplished with 3 sendmail servers. You have right there mail, mail archiving, search by date and name, mail retention policies and backup. If the company gets hit up with a E Discovery for Email pertaining to certain keywords you will have the ability to do so on site with exchange. That happens quit often at times. All of this is now the default standard in Exchange. The big drawback is the cost (per user). A wild guess is $10.00 per user account. Active Directory (ldap) can even run on top of exchange. Also the databases can reside on a SAN now also. I am an open source person but when it comes to something like that I hate to say it but Exchange has it covered. What's others opinions? How would you do it? I'm currious to know how you would do this in an environment that has many compliance problems. Mainly issues of privacy rights not being violated. JohnStanley