Mail Server with Public IP question.

[thavaht]

Hi all,

I’m looking for help on the following question:
I’m running a web server and mail server on different machines on my LAN and I’ve configured Bind to resolve internally for the clients in the LAN. That time I had only one public IP address.

Now a have a second public IP and want the mail server to use its own public IP but having the mail server still accessible internally.
Is that possible to have the mail server directly connected to the WAN and to the LAN at the same time? Can I use two network cards?

Another question is what are the concerns if putting the public IP on the server? TIA.