error when trying to move mailboxes

I keep getting this error when i try to move a mailbox from 2003 to 2010. can anyone help me to let me know how to resolve this problem

here is the error that i am recieving

Error: An error occurred while updating a user object after the move operation. --> The LdapRecipientFilter "(&(&(|(&(objectCategory=person)(objectSid=*)(!samAccountType:1.2.840.113556.1.4.804:=3))(&(objectCategory=person)(!objectSid=*))(&(objectCategory=group)(groupType:1.2.840.113556.1.4.804:=14)))(anr=frontiernv*)))" on Address List or Email Address Policy "frontiernv" is invalid. Additional information: ANR isn't supported. --> ANR isn't supported.