How do I save the first and last name of the person in your system
For privacy purposes, we just keep the email addresses of your subscribers. We do not know who they are.
If you need to keep track of the names associated with each email address, you will need to do that on your end.
Note that by default, our system allows people to change their email address by themselves. You can turn off that option.
Or you can ask to be notified immediately whenever somebody does change their address.