No question has been answered more often in this group. You need to set the
sort order for your Outlook Address Book. Method depends on your Outlook
version which you did not provide. Find a post here that matches your
version.
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Russ Valentine
[MVP-Outlook]
"Mad Uncle Hugh" Mad Uncle wrote in message
...
I have been very careful to enter my Contacts so that they are displayed in
alphabetical order in the format
Surname, FirstName.

However, when using the e-mail address bok, some of them are displayed as
FirstName Surname

I can find no reason for this variation. I have deleted entries and
re-entered data without Success