The Mailway extension generates, in a click, temporary email addresses (that looks legit) using your own domain. Emails received after a few hours will be refused to reduce spam from bad websites.
Underyling email routing rules
The generated email addresses are leveraging Mailway’s Incoming Email Routing.
By default, the generated rules are hidden in the dashboard. To see and manage them check the Show hidden rules option.
You can continue to receive emails on a temporary address by editing the rule or deleting it.