Can I use one ExQuilla license on multiple computers? Or for multiple email addresses? And pay only once?
The ExQuilla license is issued for a specific Exchange email address. It will be valid on any computer, but only with that one address. If you set up a new computer, and both the old and new computer have only this one Exchange address, then on the new computer, ExQuilla should automatically fetch the paid license from our license server, and it's automatically activated.
If you have several Exchange accounts, you would need to buy several licenses. We currently do not enforce this. However, we might enforce one license per Exchange email address at any time. We have not yet determined how exactly that would work.
If you use ExQuilla on multiple computers, and it's recognizing your paid license on one computer, but not on the other, then it might be because you use multiple Exchange email addresses. You would technically need multiple licenses, but not because of the multiple computers, but the multiple email addresses.