Exchange 2016 ask for password when users first use Outlook

Dan Li 0

Thanks in advance.

My organization is currently using Exchange 2010 (on a domain controller, Win2012). We just built an Exchange 2016 on a new DC, Win2016 (holding master AD roles). I created a test mailbox on the new exchange, but when this user tries to open Outlook (2016 or 2019) at the FIRST time (when it tries to creating the Outlook profile), it will pop up a box asking for the password. Once I input the password, it works fine and it will not happen when I re-open Outlook. This hasn't happened on the current Exchange 2010.

Does anyone know the reason? Thanks.

Yuki Sun-MSFT 41,006 Reputation points

2023-02-03T02:41:51.61+00:00

Hi @Dan Li,

We just built an Exchange 2016 on a new DC, Win2016 (holding master AD roles). I created a test mailbox on the new exchange, but when this user tries to open Outlook (2016 or 2019) at the FIRST time (when it tries to creating the Outlook profile), it will pop up a box asking for the password.

So it's a separate Exchange 2016 environment, right? Or it's coexisted with your current Exchange 2010?
By "built an Exchange 2016 on a new DC", do you mean Exchange and DC are on the same server, which is not recommended?

Generally, when a new created use is logged in a domain joined machine, his user name would be auto filled when launching Outlook for the first time. He only needs to click on Next to proceed and do not need to enter a password.

For the issue you described, could you confirm if the test user has already signed in the PC with the same account?
If possible, please share a screenshot of the password prompt after obfuscating all personal information like domain name and email address.
Yuki Sun-MSFT 41,006 Reputation points

2023-02-07T01:37:03.68+00:00

Hi @Dan Li,

How are you doing with this issue? Is there anything you would like to update? Thanks!

Share via

Exchange 2016 ask for password when users first use Outlook