junk email issue

Question

even after reporting as not junk, added sender to safe list, mails are going to junk ned help regarding this

Answer 1

Hi Tarun Giri Goswamy

Based on my research and understanding, in a business environment using Microsoft 365 or Exchange, email isn't just filtered by your personal Outlook client. It passes through several layers of security, and a rule at a higher level can override your personal settings.

First, let's ensure everything is correct on your end.

• Verify the Safe Senders List:

In Outlook, go to the Home tab > Right-click to any email > Block > Junk Email Options

Go to the Safe Senders tab > Double-check the sender's exact email address (and/or domain, like @company.com) is on the list with no typos.

• Check Your Blocked Senders List:

In the same Junk E-mail Options window, go to the Blocked Senders tab > Ensure the sender is not on this list by mistake. A block rule will always win against a safe rule.

Analyze the Email Headers

The email header contains hidden information that tells you why an email was marked as junk. This is the most effective way to diagnose the problem.

• Go to your Junk Email folder and find one of the incorrectly filtered emails > Double-click the email to open it in a new window > Click on File > Properties.
• In the Properties window, look at the Internet headers section at the bottom > Right-click inside the text box and choose Select All, then Copy.
• Paste the headers into a text editor like Notepad.

Now, search (Ctrl+F) the headers for these key terms:

• X-Forefront-Antispam-Report: This line gives you the verdict from Microsoft's Exchange Online Protection (EOP). Look for SFV:SFE (Spam Filter-rule Enforced) which indicates an admin's mail flow rule marked it as spam, or SFV:SPM which means it was marked by the standard spam filter.
• SCL (Spam Confidence Level): This is a number from -1 to 9. A value of 5 or higher means it's considered spam. Your admin sets the threshold.
• BCL (Bulk Complaint Level): A high BCL means the sender has been reported as spam by many other users.

This information will tell you if it was Microsoft's general spam filter or a specific company rule that caught the email.

Since you are in a business environment, your IT department or email administrator has the necessary tools to fix this permanently. The analysis from the email headers will give them exactly what they need to solve it quickly.

I hope this detailed explanation helps

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Answer 2

For classic Outlook for Windows with a business (Exchange/Exchange Online) mailbox, Safe Senders in the Outlook client can be overridden by server-side junk filtering. Use these steps to reduce false positives:

1. Verify the sender is not blocked in Outlook
   • In Outlook, open a message from the sender.
   • On the Home tab, in the Delete group, select Block > Junk E-mail Options.
   • Check the Blocked Senders tab and remove the sender/domain if present.
2. Add the sender/domain to Safe Senders in Outlook
   • With a message from the sender selected, on the Home tab, in the Delete group, select Block > Never Block Sender.
   • If it is a mailing list or distribution list, select Block > Never Block the Group or Mailing List.
   • To add manually:
     1. On the Home tab, in the Delete group, select Block > Junk E-mail Options.
     2. On the Safe Senders tab, select Add.
     3. Enter the full address (for example, someone@example.com) or domain (for example, @example.com or example.com) and select OK.
     4. Optionally enable Also trust e-mail from my Contacts on the Safe Senders tab.
3. Involve the Exchange/Exchange Online administrator
   • For mailboxes hosted on Exchange or Exchange Online, changes made to the Outlook Safe Senders list may not be recognized by the server-side junk filter. This can cause messages from Safe Senders to still go to Junk.
   • Contact the Exchange/Exchange Online administrator and provide:
     • The sender’s email address and domain.
     • Sample message headers from items that were incorrectly moved to Junk.
   • Ask the administrator to:
     • Check and adjust server-side anti-spam policies or allow lists.
     • Verify there are no transport rules or security policies forcing these messages to Junk.
4. Continue marking as “Not Junk”
   • Move any misclassified messages from Junk E-mail back to Inbox using Not Junk. This helps improve filtering over time, but for business accounts the definitive fix usually requires server-side configuration by the administrator.

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References:

• Block a mail sender in Outlook
• Add recipients to the Safe Senders List in Outlook