Dircat task not adding domain name

Hi, we have just added another domain to our exisiting directroy catalog task. The new users are all added successfukky but the Domain filed is not populated. Both Domain and MailDomain are fields to be included in the catalog. The exisitng users all have mail domains listed, but tnot the new ones. This means that mail addressing is failing unless we manually append the domain name. Both Domino directory profiles contain the domain name. I have done a complete rebuild of the directory catalog both by running load dircat dc,nsf -r and by removing the replication history from the directory profile doument but none of this has popuklated the field in the new documents. Please can anyone help?