Filters
Filters sort, flag or forward incoming messages automatically. They act after acceptance, so later than a blocklist.
Order matters
Section titled “Order matters”Rules run from top to bottom. That is the most important property: a rule matching higher up can stop a later one from ever applying. Put a rule for invoices below a general rule for a sender and you will wonder why it never fires.
How it relates to the other tools
Section titled “How it relates to the other tools”Three things look similar and do different jobs:
| Tool | When it acts | Effect |
|---|---|---|
| Blocklist | At acceptance | The message never arrives |
| Spam | After scoring | Mark or move to junk |
| Filters | After acceptance | Sort, flag, forward |
What a blocklist refuses never reaches a filter. What the spam threshold moves to junk can still be re-sorted by a filter afterwards.