Richard Poon wrote:

I try to create a DL on Outlook and select members from my Contacts.
I see some names appear twice. One of them is with the e-mail type
as Fax. Because the list is huge and I don't want to waste time to
select the names one by one to skip the Fax type entries. However,
there is no way to change the sorting order by e-mail type. Does
anyone have a solution for that?

The Address Book service will always include contacts that have electronic
addresses. Fax numbers are electronic address, so the Address Book view
will always include them, if found. If you change the number so that
Outlook cannot recognize it as a fax (for example, by prefixing it with the
letter "F"), then it won't appear in the Address Book interface.
--
Brian Tillman [MVP-Outlook]