Check 1-st domain (Check addresses to the 1st level domain list)
There should be a function of the known domains list editing by adding as much
domains to it as you need. By default, all domains like come/net/org/ru/de etc.
are added to the list.
All incorrect emails are deleted. If there is no such option the incorrect emails
will be added to the file-receiver as they are.
Email management software