diff --git a/WebsitePanel/Sources/WebsitePanel.Providers.HostedSolution/Exchange2007.cs b/WebsitePanel/Sources/WebsitePanel.Providers.HostedSolution/Exchange2007.cs
index d8741eb8..a21d05b7 100644
--- a/WebsitePanel/Sources/WebsitePanel.Providers.HostedSolution/Exchange2007.cs
+++ b/WebsitePanel/Sources/WebsitePanel.Providers.HostedSolution/Exchange2007.cs
@@ -6050,6 +6050,7 @@ namespace WebsitePanel.Providers.HostedSolution
             Command cmd = new Command("Set-AcceptedDomain");
             cmd.Parameters.Add("Identity", id);
             cmd.Parameters.Add("DomainType", domainType.ToString());
+            cmd.Parameters.Add("AddressBookEnabled", !(domainType == ExchangeAcceptedDomainType.InternalRelay));
             cmd.Parameters.Add("Confirm", false);
             ExecuteShellCommand(runSpace, cmd);
             ExchangeLog.LogEnd("SetAcceptedDomainType");