There are 3 possible reasons why "UNREGISTERED" still shows up:
We do not work with activation codes because you can find them very easily on the internet. We work with separate trial and full versions. After purchasing our software, customers get an account for our customer's area where they can download the full version for at least 12 months. We will also send a CD at an additional cost. Our customers will also receive an installation key, which will be necessary to install the full version. You should keep both in a safe place. Installing the full version over the trial version will preserve your existing data and settings.
Please install the latest available version on the old system. Create a backup of the settings ("Configuration"->"Export settings..."). Now install the trial version on the new system and import the settings ("Configuration"->"Import settings...").
As soon as you like to deactivate the old server, you may uninstall SmartPOP2Exchange and install the full version on the new system. The settings are not changed by installing the full version.
The exact number depends on the system SmartPOP2Exchange it is running on. To increase the throughput, you can disable the spam & virus checking.
Nevertheless, on an average server, with spam and virus checking enabled, you can achieve 10,000 mail messages per day. With spam and virus checking disabled a normal value is 100,000 mail messages.