Junk email, also known as spam, is unsolicited email, usually commercial. It can strain networks, clog email servers, and fill mailboxes with unwanted and possibly offensive messages and images. Most of it is annoying, but harmless. Most junk email will be blocked by the email server that hosts your account.
Every message, inbound and outbound, is assigned a spam confidence level (SCL) based on the likelihood that the message is spam. Depending on the SCL, an inbound message may be relayed directly to the user’s Junk Email folder. All content-filtered messages are relayed to the user’s Junk Email folder by default.
What can I do with messages in my Junk Email folder?
When you receive a message that might be junk email, it will be moved to your Junk Email folder. You can treat messages in your Junk Email folder like any other message.
If a message in your Junk Email folder is one that you want to keep, select the e-mail, click the menu above your e-mails and select Not junk or Not Spam. The message will be moved to your Inbox and the sender will be added to your Safe senders and recipients list.
How do I mark an email message as junk?
If a message in your Inbox is junk mail, you can move it to your Junk Email folder. Right-click the message, and then select Mark as junk or Mark as Spam. The message will be moved to your Junk Email folder and the sender will be added to your Blocked senders list. When you mark a message as junk, you also have the option to report mail as junk. Reporting mail as junk helps improve the effectiveness of junk email filtering.
What is junk email reporting?
Junk email reporting lets you report junk email to Microsoft and its affiliates for analysis and helps improve the effectiveness of the junk email filtering technologies. By default, when you mark a message as junk, you will see a dialog box that asks you if you want to send a copy of the message to Microsoft to improve the accuracy of the junk email filter.
In Outlook Web App, you can manage junk email reporting settings by selecting:
Settings > Your App Settings: MAIL > Options > Automatic processing > Junk email reporting.
What else do I need to know?
- You can also manage junk email settings by selecting Settings > Your App Settings: MAIL > Options > Accounts > Block or allow. For information about block or allow settings, see Block or allow.
- You can also move a message from the Junk Email folder to another folder by dragging it from the Junk Email folder to any other folder.
- If you right-click the Junk Email folder and click Empty, the contents of the Junk Email folder will be moved to the Deleted Items folder.
If you'd like to know more about how you can configure Office 365 to protect against SPAM, bith sending and receiving, please see Office 365 email anti-spam protection