Given the increasing practice of using iterating/infinite domain names, it becomes ineffective to keep trying to block those spam with changing domain names. It would be much more effective if one could specify the domain names which are permitted. That way I could insure that all email domains but say for example “…carolinar.rr.com” would be blocked. Perhaps there are a few that emclient would feel needed to be considered essential, but this would permit those dozens of unwanted emails with various and changing domain names to remain blocked.
Thanks for consideration