I think I got the answer to this from previous post. I needed to be master user to see their email.

On Fri, Feb 14, 2014 at 11:09 AM, Roman Gelfand <rgelfand2@gmail.com> wrote:

My ldap config. Would this store incoming email in maildir format? If so, can it be overriden? If so, where (possible place)?

hosts = 192.168.0.12:389 ldap_version = 3 auth_bind = yes dn = llookup@domain.local dnpass = password base = OU=People,DC=domain,DC=local scope = subtree deref = never user_filter = (&(Mail=%u)(objectClass=person)(!(userAccountControl=514))) pass_filter = (&(Mail=%u)(objectClass=person)(!(userAccountControl=514))) pass_attrs = userPassword=password default_pass_scheme = CRYPT user_attrs = =uid=999,=gid=8,=home=/vmail/%Ld/%Ln/Maildir/,=mail=maildir:/vmail/%Ld/%Ln/Maildir/