
When you click the Generate button the server automatically creates a random valid alias (out of letters and numbers, in the same domain as the user) and activates it. As long as the addresses exist they are treated as account aliases, meaning mail sent to those email addresses is received in the user's Inbox.
They can be manually deleted by clicking the Recycle Bin button next to it or automatically expire after a specified period. The expiry period as well as the number of temporary email addresses you can request are set by the server administrator at domain or account level and cannot be modified by the user.
For more details see the Configuring Account Quotas and Restrictions and Configuring Quotas and Restrictions sections.










