Apple Mail - SaneBox

Summary: Automatically applies SpamSieve to unread messages in the @SaneLater and other mailboxes.
Requires: SpamSieve, Apple Mail, SaneBox
Install Location: ~/Library/Application Scripts/ or ~/Library/Scripts/Applications/Mail/
Last Modified: 2015-05-20


The SaneBox service filters incoming messages into different mailboxes. This presents a problem because Apple Mail only knows how to apply its rules (such as SpamSieve) to new messages that arrive in the inbox. This script lets SpamSieve filter messages that arrive in other mailboxes such as @SaneLater.

First, download this script and enter your account and mailbox names where it says return {{"Account 1", {"@SaneLater"}}}. You can get the AppleScript names using the Apple Mail - List Mailboxes script.

Go to Mail’s Preferences window and create a new rule at the top of the list (above the SpamSieve rule) called SaneBox SpamSieve. The conditions should say:

Every Message

The actions should say:

Run AppleScript […]apple-mail-sanebox.scpt

After choosing Run AppleScript from the pop-up menu, select the apple-mail-sanebox.scpt file (using either the pop-up menu or the Choose… button).

Now, whenever you receive a new message in the inbox, SpamSieve will look in all the mailboxes that you specified and check all the unread messages. Any that are spam will be moved to the Spam mailbox.

Normally, the script will run when Mail receives a new message in the inbox and applies the “SaneBox SpamSieve” rule. You can also set up the script as a standalone application. This has less overhead than running the script from within Mail, and it allows the script to run on a more predictable schedule. To do this, use Script Editor to save the script as an application (with the Stay Open option checked) and then launch the application. You can set in the “idle” handler how often it should run.

Note: On OS X 10.8 Mountain Lion, the script must be saved in the folder /Users/<username>/Library/Application Scripts/ This is because Mail is sandboxed and only has access to run scripts in that folder. To access the Library folder, click on the Go menu in the Finder while holding down the Option key.

Installation Instructions · Download in Compiled Format · Download in Text Format


property pMarkSpamMessagesRead : false
property pColorSpamMessages : true
property pFlagSpamMessages : false
property pSpamMailboxName : "Spam"
property pMoveBlueMessagesToTrash : false
property pMoveGrayMessagesToTrash : false
property pMovePurpleMessagesToTrash : false
property pMoveRedMessagesToTrash : false
property pMoveOrangeMessagesToTrash : false
property pMoveYellowMessagesToTrash : false

on accountAndMailboxNames()
-- Enter your account name, followed by a list of mailboxes for that account that should be filtered.
-- The account name comes from the "Description" field in the Accounts tab of Mail's preferences.
-- For example, this would filter the @SaneLater mailbox of Account 1:
-- return {{"Account 1", {"@SaneLater"}}}
-- And this would filter the @SaneLater and Other mailboxes of the Personal account
-- and the @SaneLater mailbox of the Work account:
-- return {{"Personal", {"@SaneLater", "Other"}}, {"Work", {"@SaneLater"}}}
return {{"Account 1", {"@SaneLater"}}}
end accountAndMailboxNames

on run
-- This is executed when you run the script directly.
my filterSaneMailboxes()
end run

on idle
-- This is executed periodically when the script is run as a stay-open application.
my filterSaneMailboxes()
return 60 * 5 -- Run again in 5 minutes.
end idle

using terms from application "Mail"
on perform mail action with messages _messages
-- This is executed when Mail runs the rule.
my filterSaneMailboxes()
end perform mail action with messages
end using terms from

on filterSaneMailboxes()
tell application "Mail"
repeat with _pair in my accountAndMailboxNames()
set {_accountName, _mailboxNames} to _pair
set _account to account _accountName
repeat with _mailboxName in _mailboxNames
my filterAccountMailboxName(_account, _mailboxName)
on error _error
my logToConsole("Error checking mailbox “" & _mailboxName & "” from account “" & _accountName & "”: " & _error)
end try
end repeat
on error _error
my logToConsole("Error checking account “" & _accountName & "”: " & _error)
end try
end repeat
end tell
end filterSaneMailboxes

on filterAccountMailboxName(_account, _mailboxName)
tell application "Mail"
set _spamMailbox to my spamMailboxForAccount(_account)
set _mailbox to _account's mailbox _mailboxName
with timeout of 60 seconds
set _messages to messages of _mailbox whose read status is false and deleted status is false
end timeout
repeat with _message in _messages
my processMessageIfSpam(_message, _spamMailbox)
end repeat
end tell
end filterAccountMailboxName

on processMessageIfSpam(_message, _spamMailbox)
tell application "Mail"
set _source to _message's source
end tell
tell application "SpamSieve"
set _score to score message _source
end tell
tell application "Mail"
set _isSpam to _score ≥ 50
set _message's junk mail status to _isSpam
if _isSpam and pMarkSpamMessagesRead then
set _message's read status to true
end if
set _moveToTrash to my colorMessageAndDecideIfShouldMoveToTrash(_message, _score)
if _moveToTrash then
delete _message
else if _isSpam then
set _message's mailbox to _spamMailbox
end if
return _isSpam
end tell
end processMessageIfSpam

on colorMessageAndDecideIfShouldMoveToTrash(_message, _score)
tell application "Mail"
set _table to
blue, pMoveBlueMessagesToTrash, 6}, ¬
gray, pMoveGrayMessagesToTrash, 5}, ¬
purple, pMovePurpleMessagesToTrash, 4}, ¬
red, pMoveRedMessagesToTrash, 3}, ¬
orange, pMoveOrangeMessagesToTrash, 2}, ¬
yellow, pMoveYellowMessagesToTrash, 1}, ¬
none, false, -1}}
-- Flag colors chosen so that messages sort by spamminess: gray, purple, blue, green, yellow, orange, none
repeat with _row in _table
set {_threshold, _color, _moveToTrash, _flagColor} to _row
if _score_threshold then
if pColorSpamMessages then
set _message's background color to _color
end if
if pFlagSpamMessages then
set _message's flag index to _flagColor
end if
return _moveToTrash
end if
end repeat
end tell
end colorMessageAndDecideIfShouldMoveToTrash

on spamMailboxForAccount(_account)
tell application "Mail"
return mailbox pSpamMailboxName of _account
on error
return mailbox pSpamMailboxName
end try
end tell
end spamMailboxForAccount

on logToConsole(_message)
set _logMessage to "SpamSieve [Apple Mail SaneBox] " & _message
do shell script "/usr/bin/logger -s " & _logMessage's quoted form
end logToConsole