.pst file provided in azure storage after adding domain name and changing dns record to o365, how mailboxes will receive emails.?

Saurabh Singh 26 Reputation points
2022-10-04T04:37:21.923+00:00

Hello Team,

Our External client provided .pst file in our azure storage for exchange 2010 Mailboxes and one of my team member Copied over contents of PST to a newly created folder in user's mailbox called 'Exchange 2010 Emails;.

after adding domain name and changing dns record to o365, how mailboxes will receive emails.

Points to note:1.) we imported the way of PST(we imported pst data not users mailbox) and i guess active users still on onpremises or not?
2.) changing dns record can stop receiving new emails?

Do we need to create smtp aliases in O365 after domain move?

Please note: External client cannot provide us any permission to exchange server due to client policy(Not possible for staged/cutover/hybrid).

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
4,187 questions
Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,354 questions
Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
1,893 questions

1 answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Joyce Shen - MSFT 16,641 Reputation points
    2022-10-05T01:41:42.527+00:00

    Hi @Saurabh Singh

    Import and export PST file of the mailboxes will not affect the current status of the mailbox.

    After you finish adding domain to O365, the MX record for your domain is updated to point to Microsoft 365 and all email for your domain will start coming to Microsoft 365. And yes, you need to add the smtp alias in O365.

    You could refer to the details here:
    Add a domain to Microsoft 365 And Domains FAQ

    If an Answer is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.