To whitelist a domain in Outlook, follow these steps:
Open Outlook and go to the "Home" tab.
Click on the "Junk" drop-down menu and select "Junk Email Options."
In the "Junk Email Options" dialog box, go to the "Safe Senders" tab.
Click the "Add" button.
Type in the domain that you want to whitelist (e.g. tintwiz.com) and click "OK."
Close the "Junk Email Options" dialog box.
Note: The steps may vary slightly depending on the version of Outlook you are using.
By whitelisting a domain in Outlook, you are telling the email client to always mark emails from that domain as safe and not to treat them as junk or spam. This can help ensure that important emails are not accidentally marked as spam and missed.