[Evolution] how to maintain a list of contacts

[Victoria Spagnolo <v spagnolo pobox com>]

The docs have "4.3.3. Creating a List of Contacts" is there an explanation of how to maintain a list?
What's happened:
 I have a contact list of about 40 which work(ed) fine. Then a member of the list, person A changed their email address, so I updated their contact. Later I sent an email to the List and got a bounce on person A. That means I have to update the Contact List each time an individual contact is changed. From my perspective that is ... odd and time consuming. Am I missing something?
V