OStatic

I'm looking to have my mailserver pop mail from 3rd party sites like gmail and then have a single point from where my clients can check all consolidated emails. The specific requirements are: 1) pop mail from several mail servers 2) make mail available to clients like thunderbird 3) allow my clients to respond directly, but set the appropriate 'reply-to' address depending on where the mail came from. I realize this is easier to do by just getting thunderbird to check mail from multiple servers, but was wondering if I can use this for my mail server to do.