Multi-user mail for small business.
A brief background:
Father-in-law's small business. 3 'office' employees each with our own mac workstation. (2-G3s and 2 even older iMacs, one of these being a 'server' for most of the programs). As it stands, each of the 3 users has his own company e-mail address, let's say sales@, info@ and office@. Sales@ gets 98% of the traffic and sends applicable mail to the other two as necessary. However, this seems very inefficient to me, as sometimes sales@ isn't in that day or is on vacation again and so the other two must get up and move to her desk in order to carry on with business matters. This essentially allows the ability for each of us to screw something up and/or double-work certain matters. So my question, at last, is this:
Is there any way to set up a "bucket" type e-mail system, in which, all incoming traffic is placed into the sales@ "bucket" on the "server" with the ability for everyone to be able to, in real time, access this bucket and work the emails as needed without having to switch workstations and that tomfoolery?
Between us, I understand that upgrading Macs and implementing a dedicated proprietary server would be the way to go, but boss man isn't all that keen on dropping a ton of money into this adventure. So cheap and easy is the way to go, preferably.
Any ideas?
iMac, Mac OS X (10.6.8)