We recommend having SpamSieve move your spam messages to Mail’s special
Junk mailbox and configuring Mail so that the messages in this mailbox are
stored on the mail server. Mail normally does this automatically, but you can
check its settings to be sure that it is set up to do this.
- On macOS 10.12 and later, go to Settings ‣ Accounts ‣ Mailbox
Behaviors (sometimes also called Special Mailboxes).
- For an IMAP or Gmail account, next to Junk Mailbox, choose the
junk or spam mailbox that’s inside your account (not the one under
On My Mac). If there are multiple such mailboxes, choose the
one that your server junk filter is moving spam messages to. For a
Gmail account, this is [Gmail]/Spam.
- For an Exchange account, make sure that Store junk messages on
the server is checked.
- On macOS 10.11 and earlier, there is no way to see which mailbox Mail
is using as the special Junk mailbox. You can try creating a new
Junk or Spam mailbox in your server account and then select it
and choose Mailbox ‣ Use This Mailbox As ‣ Junk Mailbox. When you
do this, the previously selected Junk Mailbox will become visible
as a regular mailbox. You can either use Use This Mailbox As to go
back to that mailbox (if it’s on the server) or keep using the new
mailbox that you had created.
If you have multiple mail accounts, you’ll need to repeat the above for each
account.
Now that incoming spam messages will go to the Junk mailbox on the server,
that means they will also be visible on other Macs and iOS devices, and via
Webmail. If you find a good message in the Junk mailbox and you’re at your
Mac, use the SpamSieve - Train as Good command as normal. If you’re using
an iPhone, iPad, Webmail, or a different Mac:
- If you are using the regular SpamSieve setup, do not move the message
out of the Junk mailbox. Instead, when you get back to your Mac,
select the message and choose SpamSieve - Train as Good.
- If you are using the drone setup, you can move the message to the
TrainGood mailbox. The Mac will automatically train it as good and
move it to your inbox.