Office 365 (Outlook 2013) - Overview of the Junk Email Filter

Important: By February 2017, Microsoft will no longer push any updates to Office 2013 suite of applications. Please see the following document for further details: Office 365 - Microsoft Office 2013 path to retirement.

No one likes spam or junk email. The Outlook 2013 Junk Email Filter doesn't stop delivery of junk email messages, but does the next best thing --- it moves suspected spam to the Junk Email folder.

Office 365 Team Junk Mail Filtering Recommendation: It is the recommendation of the Office 365 team for users to disable all local client (Outlook, Apple Mail, etc.) automated junk mail filters and local client rules/filters in Office 365. For UW-Madison users, many clients will have local junk mail filtering disabled entirely. All rules/filters should be created in Outlook on the web. Please refer to our Office 365 (Outlook on the web) - Filtering email with inbox and sweep rules document.

We recommend you regularly review messages in the Junk Email folder to check for legitimate messages that were incorrectly classified as junk. If you find a message that isn't junk, drag it back to the Inbox or any folder. You can also mark the item as not junk by doing the following:

  • Click Home > Junk > Not Junk.

By default, the Junk Email Filter is turned on and the protection level is set to No Automatic Filtering. You can make the filter more aggressive by changing the level of protection that it provides. The Junk Email Filter evaluates each incoming message based on several factors. These can include the time when the message was sent and the content of the message.

Junk Email Filter

To change the options for the Junk Email Filter, do the following:

  • Click Home > Junk > Junk Email Options.

Overview

Junk Email Filter Lists

While the Junk Email Filter checks your incoming messages automatically, Junk Email Filter Lists let you control what is considered spam. You can add names, email addresses and domains to these lists so the filter doesn't check messages from sources you trust, or blocks messages that arrive from specific email addresses and domains you don't know or trust.

Filters

Safe Senders List     Email addresses and domain names in the Safe Senders List are never treated as junk email, regardless of the content of the message. You can add your Contacts and other correspondents to this list. If you use a Office 365 account, all names and addresses in the global address list (GAL) are automatically considered safe.

Safe Recipients List     If you belong to a mailing list or a distribution list, you can add the list sender to the Safe Recipients List. Messages sent to these email addresses or domain names are never treated as junk, regardless of the content of the message.

Blocked Senders List     You can easily block messages from particular senders by adding their email addresses or domain names to the Blocked Senders List. When you add a name or email address to this list, Outlook moves any incoming message from that source to the Junk Email folder. Messages from people or domain names that appear in this list are always classified as junk, regardless of the content of the message.

Blocked Top-Level Domains List     To block unwanted email messages from another country/region, you can add country/region codes to the Blocked Top-Level Domains List. For example, checking the CA [Canada], US [United States], and MX [Mexico] boxes in the list blocks messages from email addresses that end in .ca, .us, and .mx.

Blocked Encodings List     To block unwanted email messages that appear in another character set or alphabet, you can add encodings to the Blocked Encodings List.

International

Junk Email Filter differences when Cached Exchange Mode is turned on or off

If you use an Exchange account, you have access to another layer of tools to combat junk email.

  • If you use Cached Exchange Mode or download to an Outlook Data File (.pst)     The Junk Email Filter Lists are saved on the server and are available from any computer. The filter lists are also used by the server to evaluate messages. This means that if a sender appears in your Blocked Senders List, then messages from that sender are moved to the Junk Email folder on the server, and they aren't evaluated by Outlook.
  • If you work online     The Junk Email Filter Lists are saved on the server. They are available from any computer, but only if you have the Junk Email feature enabled in Outlook Web Access or Outlook on the web. The filter lists are also used by the server to evaluate messages. This means that if a sender appears in your Blocked Senders List, then messages from that sender are moved to the Junk Email folder on the server, and they aren't evaluated by Outlook.



Keywords:microsoft office o365 client outlook 2013 help calendaring overview messages categories flags color reminding arranging filtering junk email phishing spam inbox rules fish fishing   Doc ID:31901
Owner:Ara M.Group:Office 365
Created:2013-07-29 11:33 CSTUpdated:2016-08-30 12:33 CST
Sites:DoIT Help Desk, DoIT Tech Store, Office 365, UW Platteville
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