Forum Discussion
Prevent Exchange Online from moving Mails to Spam folder
Exchange admin center -> protection -> spam filter
We don't want mails to be sorted away in Spam folder. We want to keep Spam in inbox. For all users. So I changed the spam settings from 'move to Spam folder' to 'prepend subject line with text'. Text is 'MS_DETECTED_SPAM' (see attached image). Ex On puts the text in front of the original subject line but still moves the mail (with the altered subject line) to user's Spam folder. How can I prevent this? The internal compliance rules require this.
11 Replies
Apart form being marked as Spam, messages can end up in the folder if they are marked as Phishing (read for example this recent blog post: https://techcommunity.microsoft.com/t5/Security-Privacy-and-Compliance/Schooling-A-Sea-of-Phish-Part-2-Enhanced-Anti-spoofing/ba-p/176209) or if the Outlook junk filter acted on them. Looking at the message headers should give you an idea what happened, and you can also run a message trace in the EAC/SCC to get additional information.
- DeletedYou can create a rule to set all your messages SCL to -1 to prevent it going to junk.
Setup a rule to do the following. I do this since all my spam goes through another external spam scan solution first.
Set the spam confidence level (SCL) to '-1'- Robert KCopper Contributor
This is not what we need. The mails should be flagged as Junk. But they should not be moved to the Spam folder.
Hi Robert,
That email's happens within OWA or Outlook ?
The best way to view the problem is only use Webmail without Outlook client, because the Outlook client can also put the mail on Spam folder.
- Robert KCopper Contributor
In both worlds. We have users who never use the Outlook Client. And we have other user who never use OWA. Both types of users are affected.
- Robert KCopper Contributor
This happens in both OWA and Outlook Client. If I try to kill the Outlook client, I won't survive this. ;)
Hi Robert,
You need to test use only OWA (Outlook Closed in any device) to see if the issue that you are experience is from Office 365 services or Outlook client.
And please see this article https://support.office.com/en-us/article/change-the-level-of-protection-in-the-junk-email-filter-e89c12d8-9d61-4320-8c57-d982c8d52f6b