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Outlook
A family of Microsoft email and calendar products.
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Hi @Prabhakar Ethirajan ,
Welcome to our forum!
What do you mean about "Email address that are no longer valide in outlook"?
As i know, we can export contacts in Outlook. If the email addressed are saved as contacts in Outlook desktop client, you can put them in one folder and export them to a .csv file.
Hope to help you!
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