Use the Mailing Lists interface to create a single email address to send email to multiple email addresses.
Outgoing Mail Control
Use the Outgoing Mail Control to monitor outgoing mail from your domain that may be sending higher than normal emails. This is a good tool for checking accounts for sending spam.
Use the Autoresponders interface to send automated emails to anyone who sends mail to a specific email account. You may wish to use this feature if, for example, you are on vacation, are unavailable, or have a generic message that you wish to send from a support email address.
Limit Outgoing Messages
You may also control the amount of outgoing messages by selecting a certain number per hour.
Global Catch All
For accounts that are not created, you may redirect them to a single mailbox, forward to an address or bounce with a specific message.