Hi @Akshay Verma ,
Welcome to our forum!
Does Outlook provide this functionality?
As i know, we can try the following steps:
2.Assign categories by updating the message: Update message.
Then we can filter emails by category:
https://graph.microsoft.com/v1.0/me/messages?$filter=categories/any(c:c eq 'Yellow')
Hope to help you!
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