7.3 How do I change my subscription address?

To change your subscription address,

Log in to your member options page. (See Section 3.1 for more details on how to do this.)
In the section marked "Changing your LISTNAME membership information," enter your new address.
If you wish to change your address for all subscriptions using the old address, select the "Change globally" box. If you have subscriptions under another address or for lists on a different domain, these will have to be done separately. See Section 10.1 for more information about changing settings globally.

There is no special way to do this from the email interface, but you can subscribe and unsubscribe for more or less the same effect. (See Sections 5.1 and 5.2 for more information on subscribing and unsubscribing.)