Unable to remove e-mail alias from shared mailbox

Question

Hi there

I'm having another issue within the 365 exchange admin center where I'm not able to remove an alias from a shared mailbox. I click the remove (-) button, the address disappears, I click save and I receive no errors, like it has successfully processed. I then go back into the mailbox and the address is still there!

So i tried the powershell command to remove the alias.

set-mailbox "e-commerce" -Emailaddresses @{remove="MAIL"}

Powershell doesnt give an error back, but it doesnt remove the alias neither.

Can anyone help with this? i have seen this issue multiple times on the internet, but not an answer that helps.

Thanks in advance,

Michael

Answer 1

Hello :)

I just found the issue..

there was an user which was using the Alias as primary address.

when i changed this to another address i was able to delete the alias from the shared mailbox.

Regards,

Michael

Answer 2

Hi Michael,

From my test in the lab, I failed to reproduce your issue. You can try to delete the alias in Office 365 Admin Center > Groups > Shared mailboxes to check if it helps.

Besides, please try to use the following command to remove alias of the shared mailbox to check if it helps.

Set-Mailbox "<shared mailbox name>" -EmailAddresses @{Remove='<alias email address>'}

(e.g. Set-Mailbox "sharedmailbox" -EmailAddresses @{Remove='******@contoso.com'})

Regards,

Marvin

Answer 3

Thanks for the reply Marvin,

But that is exactly my problem. I can delete alias from there and save it, but when i reopen the mailbox the deleted alias has simply returned.

same as the PS command you suggested, i mentioned in my OP that when i run the command PS gives no error, but the alias isn't removed neither.

I will try to eplain a bit better:

In the original situation i had one Shared Mailbox with 2 aliases. (both e-commerce, but 2 different domains) 

e.g.: ******@domain1.com and ******@domain2.com

one of that domains is now split up, so i need an second shared mailbox with the second alias of shared mailbox 1.

New situation i want to get:

Shared Mailbox 1, with alias ******@domain1.com

Shared Mailbox 2, with alias ******@domain2.com

The problem is i can't delete ******@domain2.com out of Shared Mailbox 1.

Hope this gives a better understanding of the issue i'm having now.

Regards,

Michael

Answer 4

Hi Michael,

Did you have similar experiences with other shared mailboxes? For the test purposes, please try to add and remove an alias for different mailbox. This would be very useful for troubleshooting of the issue.

Also, you could test adding and deleting new aliases to the affected shared mailbox.

For more information, please run     Get-Mailbox <user> | FL      in PowerShell. This should give us lot of useful information about affected shared mailbox. Please copy the output (select and Crtl + C) and send me as a reply on Private message.

I’d also like to ask you whether your organization uses pure cloud, on premises or hybrid platform. If you don’t use pure cloud platform, there is a possibility you are facing synching issue.

After you send me the information, I’ll be able to provide you with the further suggestions.

Regards,

Nemanja

Answer 5

Hi Michael,

I'm very glad that you resolved the issue. In case you need some other suggestions, feel free to write.

Regards,

Nemanja