Allow and Block Lists (formerly known as White/Blacklists)
Allowing and blocking, allows or blocks messages sent by specific senders. Please be aware that email senders can be forged - you can't rely on the sender 100%.
Blocked senders are blocked and end up in the quarantine.
Allowed senders always get past the spam filters, but if their messages are corrupt or virus infected, our other filters may capture them, in order to keep you well-protected.
Add individual senders or domains with the "Add Entry" and choose Allow or Block.
Or enter many at once with the "Add Allowed Sender(s) or Add Blocked Sender(s)..." option in the "Bulk Operations" menu.
You can allow or block:
TLD's (top level domains): .info, .tv, .eu, etc (be sure to leave the preceding dot out when adding TLD's)
More specific entries override the less specific, so you can block aol.com, but exempt your Mom by allowing email@example.com.