To delete a mailbox you have added, click the
delete icon 
next to the mailbox.
To save your mailboxes and immediately create more, click Save & Add Another.
You add mailboxes for existing members using the New Mailboxes page.
Note: You can add a mailbox for a new member during member creation. See "Creating new member accounts" for detailed information.
To create mailboxes for existing members:
In the Menu, click Mailbox > Administration.
Click the Mailboxes link. The Mailboxes list appears.
In the Command Bar, click New > New Mailboxes. The New Mailboxes page appears.
From the Format menu, select a format to use for the local part of the email address (before the @ sign), for example, firstname.lastname or firstinitiallastname.
Click the arrow next to the User Name box, choose a member from the list, and click Add. The email address field for the new mailbox is populated, using the format you selected. Repeat this step to add mailboxes for other members.
Note: You can manually edit a member's email address once you have added a mailbox for the member.
IMPORTANT: You cannot change the email address for a mailbox once it has been created. If you need to change the email address for a member's mailbox, you can set up an email alias, or delete the mailbox and then recreate it with the new email address. Deleting the mailbox will delete all of the member's existing email.
To delete a mailbox you have added, click the
delete icon next to the mailbox.
To save your mailboxes and immediately create more, click Save & Add Another.
Note: The Save & Add Another option allows you to add mailboxes in batches. Add the first batch, click Save & Add Another, add the next batch, click Save & Add Another, and so on.
When you are finished adding mailboxes, click Save.
Note: If you are adding a large number of mailboxes, it may take some time for the mailboxes to be created and accessible.