5.5.7   Setting up a Spam Filtering Drone

As described in the Correct All Mistakes section, you need to tell SpamSieve about messages that it misclassified so that it can learn from them. Also, the sooner you correct SpamSieve the better. This presents a problem if you’re going to be away from your Mac for a while, e.g. if you’re on a trip and using your iPhone or Web mail. With the normal setup, you can leave SpamSieve running on your Mac at home, and it will clean the spam out of your inbox, but aside from remote-controlling your Mac there’s no way to train SpamSieve.

The drone setup lets you run SpamSieve on one Mac and train it from other Macs, PCs, or iPhones. This setup requires Apple Mail, and it’s based on a tutorial from MacMerc.

Here’s an outline of how it works:

• All the computers check the same IMAP account.
• One Mac (the drone) downloads all the messages and filters them with SpamSieve. The other computers (your notebook Mac, your PC at work, your iPhone, etc.) are not running SpamSieve, yet they get a spam-free inbox. If you’re using an iPhone, you may want to turn off push e-mail so that the phone doesn’t notify you about new messages that would be put into the spam mailbox, anyway.
• If you’re sitting at the drone, you can train it normally using the commands in Mail’s Message menu.
• If you’re at one of the other computers, you can train it remotely:
  • If a spam message gets through, move it to the special TrainSpam mailbox to train the drone. When the drone downloads a new message, it will train SpamSieve with the messages in TrainSpam and then move them to the Spam mailbox.
  • If a good message ends up in the spam mailbox, move it to the special TrainGood mailbox to train the drone. When the drone downloads a new message, it will train SpamSieve with the messages in TrainGood and then move them to the inbox.

To setup the spam filtering drone:

1. Make sure that all the computers are set to connect to your mail account via IMAP (or MobileMe). These instructions assume that you have a single IMAP account. If you have more than one, this sort of setup will still work, but it will be more complicated.

2. This optional step will hopefully keep SpamSieve running if there’s a power failure while you’re away from your drone Mac. Open System Preferences. In the Accounts pane, set Mail as a login item for your account. Under Login Options, enable automatic login. In the Energy Saver pane, set it to Restart automatically after a power failure.

3. Follow the normal SpamSieve setup procedure in the Setting up Apple Mail section, with one change: in Step 2, create the new Spam mailbox in your IMAP account instead of in On My Mac.

4. Create two more mailboxes in your IMAP account: TrainGood and TrainSpam.

5. Open Script Editor and paste in the following script:

   on perform_mail_action(info)
       tell application "Mail"
           set _mailbox to mailbox "TrainSpam" of account "AccountName"
           repeat with _message in messages of _mailbox
               set _source to _message's source
               tell application "SpamSieve" to add spam message _source
               set _message's mailbox to mailbox "Spam" of account "AccountName"
           end repeat
       end tell
   end perform_mail_action
   

   Change the two occurrences of AccountName to the name (description) of your mail account. Save the script somewhere on your Mac, and call the file RemoteSpamTraining.scpt.

6. Go to Mail’s Preferences window and create a new rule at the top of the list called Remote Spam Training. The conditions should say:

   Account AccountName

   The actions should say:

   Run AppleScript […]RemoteSpamTraining.scpt

   Rather than typing the path to the script file, you can click the Choose… button and select the file that you created in Step 5.

7. Open Script Editor and paste in the following script:

   on perform_mail_action(info)
       tell application "Mail"
           set _mailbox to mailbox "TrainGood" of account "AccountName"
           repeat with _message in messages of _mailbox
               set _source to _message's source
               tell application "SpamSieve" to add good message _source
               set _message's mailbox to mailbox "INBOX" of account "AccountName"
           end repeat
       end tell
   end perform_mail_action
   

   Change the two occurrences of AccountName to the name (description) of your mail account. Save the script somewhere on your Mac, and call the file RemoteGoodTraining.scpt.

8. Go to Mail’s Preferences window and create a new rule at the top of the list called Remote Good Training. The conditions should say:

   Account AccountName

   The actions should say:

   Run AppleScript […]RemoteGoodTraining.scpt

   Rather than typing the path to the script file, you can click the Choose… button and select the file that you created in Step 7.