LDAP Setup

Hello,

We are using Trend Macro(IMSS) for spam protection it work as a gateway to domino,all of our users has two email address (two address define in short name field on domino directory) and they are receiving emails on both the address from outside.my problem is that LDAP from trendmacro is only looking the first email address and the email which send to second address is rejected by the IMSS with a message that user not found in LDAP.Do i need to do some configuration on domino so that LDAP looks for both the address.kindly advise

Thanks

Vivek