Horizon Foods - Improving your email with Junk Filters

Improving your email with Junk Filters

There are two methods that you can use to improve your email system by eliminating spam. Both methods are not 100% effective. Both non junk messages may be mistakenly marked as junk, and junk messages may not be marked as junk. After setting up either method it is highly recommended that you check the junk folder(s) to see if any real messages were mistakenly marked as junk.

Method 1 – X-IMail-SPAM server filter
Our mail server marks messages it determines are junk with a flag of:
X-IMail-SPAM
This flag is placed at the beginning of the messages real subject. You can use the webmail system to setup a rule to filter all messages containing that flag to a new/existing junk folder. Remember that not every message that is marked with this flag is really a junk mail message, so check the Junk folder from time to time.

The steps you need to take are:

Log in to your email account using the webmail interface
Click on the Rules option in the lower left corner

Example of where the rules link is in the webmail interface

Click on the New button to create a new rule --- this will take you to the Add Rule screen

The new button in the Rules screen

Enter the following data for the new rule:

Enter a Name for this Rule

Rule name = Junk

Add the Rule Condition

Click on the Add button --- This will take you to the Add Rule Condition screen

Where = Subject
Comparison = Contains
Search = X-IMail-SPAM
Match Case = Unchecked

Click Save and Close button when finished

The Add Rule Condition screen

Set the action to take when conditions listed above are met

Action Type = Move to mailbox
Target = Junk

Click Save button when finished

The Edit Rule screen after options have been entered

Method 2 – Thunderbird Junk mail controls

Thunderbird has a junk mail filter that you can teach which messages are junk and which messages are not junk. As you teach it which messages are junk it will then match similar messages in the future and automatically mark them as junk. If a message is mistakenly marked as junk by this system you can mark it as not junk. This will also teach thunderbird how to handle things in the future with similar messages.

The steps you need to take are:

Open Thunderbird
Right Click on the account name and choose New Folder

The Right click on account name menu options

In the New Folder window enter the following:

Name: tbjunk
Create as a subfolder of: choose the account name of your horizon email account

The New Folder creation options

From the main Thunderbird window open the Tools pull down menu
Choose Junk Mail Controls from the Tools pull down menu

The Tools pull down menu options

Enter the following data

Configure Junk Settings for: choose the thunderbird account name for your horizon foods email account
On the Settings Tab:

Do not mark messages as junk if the sender is in: Personal Address Book -- make sure the checkbox is checked
Trust junk mail headers set by: --checkbox is unchecked
Handling section

Move Incoming messages determined to be junk mail to : --checkbox is checked
Select the option “Junk” folder on: your thunderbird account name for your horizon foods email account
Automatically delete junk messages older than 14 days from this folder – checkbox is unchecked
When I manually mark messages as Junk: -- checkbox is checked
Select the option Move them to the Junk Folder
When displaying HTML messages marked as junk, sanitize the HTML – checkbox is checked

The Settings Tab options

On the Adaptive Filter tab

Enable adaptive junk mail detection – checkbox is checked
click OK when finished

The Adaptive Filter Tab options

The display options button
The Display options for the message summary pane