Even though I have marked a message as "Not Junk", safe-listed it via "Add Sender to Safe Sender List" and "Add Sender's Domain (@example.com) to Safe Senders List", messages from this sender still end up in the Junk E-mail folder.
What do I need to change in order to get these messages delivered to the Inbox?
There are several methods to get your messages end up in the Junk E-mail filter. Luckily, there is an Infobar notification above the message which tells you whether the message has been filtered out by the Outlook Junk E-mail filter or by something else.
Filtered by Outlook
If the message has been filtered out by Outlook, then the Infobar will contain the following text;
”This message was marked as spam using the Outlook Junk E-mail filter.”
When you see this message, you'll need to troubleshoot your Junk E-mail settings in Outlook. Make sure you have the latest updates installed and even try turning off the Junk E-mail filter to find out where the messages end up now.
Filtered by another scanner
If the message has been filtered out by another scanner, then the Infobar will contain the following text;
”This message was marked as spam using a junk filter other than the Outlook Junk E-mail filter.”
When you see this message, you’ll need to troubleshoot the virus scanner or Junk E-mail filter that is included in your Security Suite or contact your ISP or mail administrator and have him/her check the virus scanner and/or Junk E-mail filter settings on the mail server (for instance; adjust the SCL threshold when working with Exchange).
Filtered by a rule or moved manually
If a message has been filtered out via a rule or has been moved to the Junk E-mail folder manually, then the Infobar will not indicate a reason why the message sits in the Junk E-mail folder.
When you see this message, you’ll need to check if you don’t have any rules configured which move messages to the Junk E-mail folder.