OK. Somehow, it escaped you that Mail
has an Artificial Intelligence-based junk mail filter. This has been the case from the beginning. However, the AI must be trained to work effectively. This is how you enter the junk mail filter into training mode:
- In Mail/Preferences..., click the Junk Mail tab.
- Check Enable junk mail filtering
- Select Mark as junk mail, but leave it in my Inbox.
- Now, the filter is ready for training. You decide which messages are junk and which are not. To start, some messages will be flagged as junk, others will not be.
- If a junk message is correctly identified as junk, then you may discard it by clicking the Mail Trash icon.
- If the junk mail filter missed a junk mail message, then you must manually flag it by clicking the Thumbs Down icon next to the Trash icon.
- If the junk message filter incorrectly flagged a real message, then open the message. Click [Not Junk] in the upper right hand corner.
- Over time, you should see most or all of your junk messages having been flagged. You should also see few if any false positives. It should take about 2 weeks for the Mail junk mail filter to learn the profile of the junk messages that you receive.
- If you are satisfied with the accuracy of the filter, then return to the Junk Mail tab in Mail/Preferences....
- Select Move it to the Junk mailbox.
Although the junk mail filter will then be out of training mode, it is still learning. Manually flag junk messages if the filter misses them. Periodically check the Junk
folder for false positives. If a flagged message is a false positive, then open it and then click [Not Junk]
in the upper right hand corner.