ldap question

I am testing ldap sync and email address publishing to a.d. I created
a test a.d. user, imported it into my GW2014sp1 system.

The synchronize seems to work fine, as if I make changes to fields in
the a.d. account, they show up in Groupwise.

When I try to publish this user's email address back to a.d., the email
address does not seem to show up.