My company is using Microsoft Mail and the company want to upgrade the mail server, but does not have enough cash for expending on an Exchange, so I was wondering what are the free alternatives out there that permits us to:
- Configure a Mail Server for Intranet
- Configure a Mail Server for Internet (optional, not too important right now, but cool)
- Permit working with various mail clients (Outlook Express, Office Outlook, Maybe ThunderBird, something easy for users)
- Basic Mail Features (inbox, folders, attach files, groups)
Thanks in advance