Thanks for your feedback, Since our forum has the policy that The question author cannot accept their own answer. They can only accept answers by others, and according to the scenario introduced here: Answering your own questions on Microsoft Q&A
I would make a brief summary of this post so that other forum members could easily find useful information here:
[Export To a csv File exports x500 format address for To, CC & BCC fields in Outlook - Summary]
Issue Symptom:
When export mails from a folder in Outlook to a csv file using the Export To a File option, the To: (Address) , CC: (Address) fields show up x500 format address values instead of regular SMTP.
(Possible) Causes:
This is by design, since outlook uses X.500 Address to identify users (NOT SMTP Address) within Exchange Organization. And we cannot change this behavior.
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