• Our Secure Email Gateway determines that the message is spam.
• The message does not pass email authenticity checks.
• The message matched one of your personal inbox rules and that rule puts the message in your Junk folder.
• The email Sender is in your personal Blocked senders list.
• Your Blocked or Safe Sender list is over the 500 address limit and it is causing filtering problems.

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.

Legitimate spam

There are a couple of options for dealing with legitimate spam in your "Junk Email" folder:

• Do nothing: Messages will automatically be deleted after 30 days. Important: There is a system wide policy in place for all Office 365 email accounts that will automatically delete messages that are older than 30 days from the "Junk Email" folder.
• Delete: Like any other message, you can delete it. Deleted messages will go into your "Deleted Items" folder.

Misidentified spam message

If a message in your Junk Email folder is one that you want to keep, you will be able to mark the item as not junk and the item will be moved to your inbox.

• Outlook on the web: Right click the item in your Junk folder you would like to keep and click Mark as not junk.
• Outlook Desktop Clients: Select an item in your Junk folder and from the ribbon click Junk and click Mark as Not Junk or Not Junk depending on the version of Outlook.

If you believe the message should have been tagged as spam, review the following document: Microsoft 365 - Report Suspicious message.

The only way to not get spam is to make sure that spammers do not know your e-mail address or make them think that your account is not being read. There are many ways that you can try to limit the amount of spam you receive.

1. Unsubscribe from the mailing list if the organization is reputable (you should be able to tell from their web site if they have one). Have you ever filled out one of those web forms and forget to check whether the "Send me Info" box was checked or unchecked? It's usually set on by default.
2. Don't reply to spam messages and don't click the link that says "unsubscribe" if the company is not reputable. Spammers often use this to verify that your address is valid. They rarely remove your address from their mailing list; or if they do, then they may just put you on another list.
3. Obtain a "throwaway" e-mail address. Use this address if you have to enter your email address in an form online. Check the account periodically to make sure that no legitimate messages get sent to that address. Options include Gmail, Yahoo, Hotmail, etc.
4. Read web site privacy policies before submitting personal information. This will help you determine if the company is reputable enough to handle your private information. If you determine that the company may abuse this information, give them your "throwaway" address instead.
5. Don't put your email address on a web page. Spammers use "spider" programs to scour the internet looking for email addresses. If you absolutely have to publish your real email address on a web page there are some ways to hide your address so that people can read it, but spider programs can't. Look up these tactics with your favorite search engine.
6. Create custom rules If you can reliably detect a specific pattern or content within these messages, you can try creating a unique inbox rule to automatically detect and filter these messages. If you need assistance with this, you can look at the following document Microsoft 365 (Outlook on the web | Outlook for Windows/MacOS) - Using Inbox Rules.
7. Create a block filter Mail identified as possible junk email can be automatically moved to the Junk Email folder. Learn more.

To Manage your Junk Mail follow the below steps or click here to Learn more; 

1. Login into Outlook on the web with your NetID
2. Click on Settings
3. Click on Mail
4. Click on Junk Email
5. Click on either the Safe Senders and Domains tab or the Blocked Senders and Domains Tab
6.  Click on the "+ safe senders" or "+ blocked sender".
7. Then enter the email or domain that you would like added.
8. Click "Ok"
9. Repeat process as needed
10. Click "Save"

Note: When several hundred email addresses have been added to your Blocked Senders list, blocking of messages may become inconsistent. If more than 500 addresses have been added to your Blocked Senders list, mail blocking will no longer work. You will need to remove blocked addresses from the list to bring it below the limit for mail from blocked senders to be properly routed to your Junk Mail folder instead of your Inbox. Microsoft does not intend for the Blocked Senders list to house hundreds of addresses, and it is recommended that you keep the list as small as possible, only blocking senders you believe are likely to send again using that address. Keeping this list manageable at around 50 blocked addresses, is a good practice."

Due to a recent change by Microsoft, you can no longer add other email accounts or domains that are within our UW-Madison Implementation of Microsoft 365 to your 'Safe Senders or domains'. Accounts in the Global Address List (GAL) are considered safe senders by default. This does not apply to Contacts and MailUsers in the GAL. It also does not apply to mail sent via the campus relay service or other 3rd party platforms (example: Mailchimp, Salesforce, Slate, WiscIT).

• 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 are forwarding your account: All messages sent to your account, including spam, will get forwarded to destination account. This could cause the destination email system to reject the forwarded message because it may look even more spammy. If you are forwarding your UW-Madison Microsoft 365 account and are experiencing message delivery issues, please remove the forward. 
• Focused Inbox feature may be right for you. Learn more.
• Learn how to create a good HTML email message.
• Why emails go into the junk/spam folder.
• How To Avoid Spam Filters When Sending Emails.
• Junk email filter limits.