Have you ever been copied in on an email thread that clutters up your inbox and causes alerts to come up for something that doesn't apply to you? Here’s how to ignore that thread so that you never see it again.
1. Click on the email thread
2. Click "Home" on the top menu
3. Click the "Ignore" icon
You can also right-click the message and select “Ignore” or double click the email and open it then click Message > Ignore. Whichever method you choose, Outlook will show you a confirmation window.
Click “Ignore Conversation” to move all of the emails in that particular email thread straight to the Deleted Items folder. Any future messages that come in on that particular email thread the will also be transferred straight to the Deleted Items folder, without you seeing them.
Don't worry, if you need to refer to this emails they will remain in your deleted items folder for at least 30days (or longer depending on how your deleted folder is setup) and you can refer to these emails at any time.