The Update now button in the DL is supposed to provide that function.
If it doesn't, then you are not alone.

Signature
Russ Valentine
[MVP-Outlook]
> Is anyone aware of a way to update email addresses in an
> Outlook Distribution Group directly from the Contact? In
> other words, when I change an email address in the
> individual contact, I'd like to see that change
> automatically (or semi) update the corresponding contact
> in the distribution list. (Outlook 2002) Thank you. Clair
Clair Heise - 20 Jan 2004 00:29 GMT
Russ, Thank you for the response. Update now does not
work. Have you heard of any work arounds? Clair
Russ Valentine [MVP-Outlook] - 20 Jan 2004 01:40 GMT
None. It's one of many reasons most of us abandoned DL's log ago. They're
just more trouble than they're worth.

Signature
Russ Valentine
[MVP-Outlook]
> Russ, Thank you for the response. Update now does not
> work. Have you heard of any work arounds? Clair