I know that I can use a wildcard in a given account’s blacklist such as:
*@somedomain.com
Can I use a wildcard on the domain name or TLD? Like:
sameaddress@*.com
or
sameaddress@somedomain.*
or
sameaddress@.
As long as you see a ‘+’ sign next to the box, it means you are going right. As soon as you see a ‘!’ it means the entry is not acceptable for use there.