Outlook Junk Mail filter

What is this?

Messages that Outlook believes are not of high value are placed in the Junk Email folder, instead of your Inbox.

Managing that folder is part of managing your mailbox. 

It should be checked regularly and its filtering level adjusted to ensure future valid messages go into your Inbox and true spam/phishing messages are automatically deleted.



 

Instructions

In the desktop Outlook App, manage emails in your Junk Email folder by right-clicking on the message and selecting one of the options below:

In Webmail, right-click the message, then choose either to block future messages from that sender from coming from coming in, or choose to allow messages from that sender.

Further options:

While the Junk Email filter checks your incoming messages automatically, custom 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.

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. However, by design, safe domains are not recognized by default in Exchange Online or in Exchange Online Protection. Only blocked domains, blocked sender addresses, and safe sender addresses are recognized. If you use a Microsoft Exchange Server account, all names and addresses in the global address list (GAL) are automatically considered safe. The Safe Sender limit is 1024.

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. 

Resources:

Webmail Junk Filter: https://support.microsoft.com/en-us/office/block-or-allow-junk-email-settings-48c9f6f7-2309-4f95-9a4d-de987e880e46

Desktop App Filter: https://support.microsoft.com/en-us/office/overview-of-the-junk-email-filter-5ae3ea8e-cf41-4fa0-b02a-3b96e21de089