I bought CommuniGate Pro many years ago and kept updating through 4.X as long as the upgrades were free. I dropped out when the licensing terms changed radically, and ran 4.X without problem for quite a while. This is really very nice software for managing a lot of things easily.

Now, however, it turns out that CommuniGate is FREE for users with five accounts or less, so I'm going back to upgrade.

Try it, you'll like it, as long as you're a small enough operation to fly under the 5 account limit,