OWA publishing rule not workin in UAG if multiple domain and SAN entry not exist

Hi,

We have published OWA 2013 thrugh UAG. but one domain entry not exist in SAN certificate and for that OWA is not working. we have public certificate.

Is there any workaround in UAG so that even if SAN entry not exist for one domain but UAG will authenticate the request for missing domain in certificate.

Thanks

jitender