Hi, We are using Exchange 2010 on SBS2011 and additionally Eset Mail Security. We receive just a huge amount of spam in to our mailboxes. I have tried to configure Eset to prevent that, but everything is just not right enough. For example greylisting - it should work against spam, however, even if whitelist is configured - it still prevents most of emails to come through without a delay. Is there anything else, where greylisting looks up for whitelists? Or where shall we consider configuring whitelists if not in Eset? Thanks.