Thanks Sue but I'm confused. I must have explained it badly. Migration
aside, we've been told that Outlook itself doesn't allow you to create
DLs containing other DLs in the user's Contacts folder; instead, they
have to be created as public lists in AD by an administrator using
ADUC.

Unfortunately, we can't avoid them because they already exist and the
migration has to be as transparent as possible. We're into the
thousands of mailboxes and hundreds of lists.

On Jun 9, 8:55 pm, "Sue Mosher [MVP-Outlook]"
wrote:
Outlook definitely does support nested distribution lists. Migration is another matter, of course. I doubt that most migration tools would handle nested DLs well.

Nested DLs themselves are a potential maintenance and support nightmare. I'd avoid them myself and use categories to manage any list with more than 10 members or a membership that changes more than once a year.

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/article.aspx?id=54

"Alan" wrote in oglegroups.com...
Hello,

We're migrating to Exchange/Outlook 2003 from a mail system which
allows nested distribution groups in the users' Contacts folder. The
migration tool can't migrate any nested groups because Outlook doesn't
support them.

Can anyone suggest a workaround please?

AD does allow nested distribution groups but company policy doesn't
allow external contacts in the AD. Plus the groups are in a few
hundred departmental mailboxes - not personal ones - so we don't want
to shift management of the lists (creation, updating, assignment of
permissions) from the users to the administrators.

It's a showstopper for us.

Thanks,

- Alan.