Is there a limit to the number of email addresses that can be registered?

There is no limit to the number of fixed and random email addresses that can be registered.

However, please note that Autify is designed for reproducing scenarios and regression testing. It is not suitable for purposes such as load testing.
For example, while it is possible to create 1,000 fixed or random email addresses, we can't guarantee the stability of tests that involve sending a high volume of emails at the same time.