尘封的记忆

* is a wildcard that represents any address you have not explicitly named. For example, imagine you have set up the following email forwarding:

• "sales" forwarding to larry@example.com - email to sales@<yourdomain> will be delivered to larry.
• "support" forwarding to yu@example.com - email to support@<yourdomain> will be delivered to yu.
• "*" forwarding to roberto@example.com - email to all other addresses, such as asdf@<yourdomain> and test@<yourdomain> will be delivered to roberto.

Essentially, using a wildcard gives you an infinite number of email aliases all forwarded to a single address.