Exchange 2007 adding IP Block List Providers

Run the exchange management shell and execute the following commands:
Add-IPBlockListProvider -Name bl.spamcop.net -LookupDomain bl.spamcop.net -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://www.spamcop.net/w3m?action=checkblock&ip={0} for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name dnsbl.sorbs.net -LookupDomain dnsbl.sorbs.net -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://www.au.sorbs.net/lookup.shtml for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name zen.spamhaus.org -LookupDomain zen.spamhaus.org -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://www.spamhaus.org/query/bl?ip={0} for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name cbl.abuseat.org -LookupDomain cbl.abuseat.org -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://cbl.abuseat.org/lookup.cgi?ip={0} for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name b.barracudacentral.org -LookupDomain b.barracudacentral.org -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://barracudacentral.org/lookups/ip-reputation for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name spam.dnsbl.sorbs.net -LookupDomain spam.dnsbl.sorbs.net -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://www.au.sorbs.net/lookup.shtml for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name spam.rbl.msrbl.net -LookupDomain spam.rbl.msrbl.net -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://www.msrbl.com/check?ip={0} for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name bl.spamcannibal.org -LookupDomain bl.spamcannibal.org -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://spamcannibal.org/cannibal.cgi for further information. This organization has no control over this RBL (Realtime Block List).”
Add-IPBlockListProvider -Name psbl.surriel.com -LookupDomain psbl.surriel.com -Enabled $True -RejectionResponse “{1} has blocked your IP address ({0}) using the list ‘{2}’. Please see http://psbl.surriel.com/listing?ip={0} for further information. This organization has no control over this RBL (Realtime Block List).”
Now check the list of providers in the exchange management console and it should look like this: