Hi,

I made a backup from my old mailbox (from an old exchange server) as .pst.

I import the pst into my office365 mailbox.

Now, if I look into my old mails, contact are with exchange (old) format(/O=FIRST ORGANIZATION/OU=EXCHANGE ADMINISTRATIVE GROUP /CN=RECIPIENTS/CN=AQS2C8) , but if I look to the same mail in OWA, I can see the real email of the contact (person@mail.bla).
So I can't make in reply-to in Outlook while I can do in  OWA....

Do you know if there is a way to clean messages in mailbox to remove these bad exchange information.

Thank you

Olivier

I import the pst into my office365 mailbox.

Hi,

May I know how you performed the step to import the .pst file? Did you import it on Outlook client?

Please also provide a screenshot to compare the difference, so that I can understand the scenario more clearly.

You can send the screenshot to our email address below:

ibsofc@microsoft.com

Please add the url of this thread in the message for easy tracking, thanks.

Regards,

Melon Chen
TechNet Community Su

I manage to change "bad exchange" datas (from older exchange server) with a macro.

thanks

• Marked as answer by OGUIGNARD 20 hours 24 minutes ago