Error:Migration Invalid Target Address Exception

Question

Staged Migration batch:

Target address no found...

Answer 1

Please send me an email with all information you need? I didnt find yout queries here in our community.

Answer 2

Hi Farooq,

Let’s continue our troubleshooting. 

Could you provide the information I asked on June 22 for further analysis? 

Thanks,

Young

Answer 3

Yes,indeed.It is still an issue

Answer 4

Hi Farooq,

Do you need any further assistance?

Thanks,

Young

Answer 5

Hi Farooq,

May I collect some information to analyze the issue?

1. What is your on-premise Exchange version?
2. Could you provide the entire error message? To protect your privacy, I have sent a private message to request your tenant information. Please use this link to access the private message and reply to it: https://answers.microsoft.com/en-us/privatemessages/list
3. How many mailboxes have this issue?
4. Before staged migration, the on-premise mailbox is synced to Office 365 as a mail user. According to the error message, the possible cause is that the Office 365 mail user’s email addresses are not synced correctly. I’d like to check the recipient information via PowerShell commands:

a. From on-premise Exchange Management Shell, run:

Get-Mailbox UserName | fl

b. From another PC, connect PowerShell to Exchange Online: https://technet.microsoft.com/library/jj984289(v=exchg.160).aspx. Then run:

Get-User UserName| fl

Get-Recipient UserName | fl

Get-MailUser UserName | fl

Note: replace UserName with this affected user.

Please also provide the PowerShell outputs in private message. 

5. Based on my experience, I suggest you try to permanently remove the affected Office 365 user, re-sync the user to Office 365. And then migrate the mailbox again. 

Thanks,

Young