I've been seeing a huge increase in spam getting through my filter using strange domain extensions such as .ml, .win, .att-ma, .nrmtv, etc. Some of them are blocked, but most make it through to the Inboxes. Is there any way to either a) block e-mails by domain extension (e.g. anything with .work) or b) is there a way to only allow certain extensions (.com, .net, .org, etc.)?
I'm using ESET MS v.4.5 but if this feature is in v.6 then I would consider upgrading.
Thank you,
Mark