@Joanne_Chang_LAX
I would suggest one solution which is actually Generic solution and less loaded also.
Make a separate folder in Outlook Account.
Set rule for this folder as who can send mails for this folder.
When you will give 3 email addresses to it. You will get all emails to it.
Hi, thanks for your help, but I don’t want to get all the mails first before filtering, because there are more than 1000 mails to process, and I’m afraid that will take too much time.