i tried using ldap+content filter -any suggestions ?? :?You cannot use ldap since the DL doesn't contains email addresses, but members DNs.The only other straight solution i think of is to create aliases list of all your internal DLs on the ironpor...
I suggest you to talk with your ISP and ask for their help about SORBS issues.I know that many ISPs arround the world have a speical access to SORBS in one way or another.