Bad Patterns In Sender/Recipient Address: Should both of these work to block any email with a from address: xxx@postmasterdirect.com @postmasterdirect.com postmasterdirect* Also, is it case dependant?

Yes, Bad Patterns In the Sender / Recipient Address are case independent.

Bad Patterns In Sender/Recipient Address: Should both of these work to block any email with a from address: xxx@postmasterdirect.com *@postmasterdirect.com *postmasterdirect* Also, is it case dependant?