When hovering over From Address in an email message, options currently include:
Block Sender (or Unblock Sender)
Trust Sender (or Untrust Sender)
Block Any Name in This Domain (or Unblock Any Name in This Domain)
Block Name at Any Domain (or Unblock Name at Any Domain)
Smartermail functionality for dealing with blocking should be enhanced to allow decisions on what to do with blocked senders of all 3 types.