question

AlessandroVannini-1809 avatar image
0 Votes"
AlessandroVannini-1809 asked YukiSun-MSFT commented

Exchange 2016 address book error after CU20

Hi to All,
Updated Exchange 2016 for Hafnium patch with CU20. All fine. But unable to join a new outlook client or an old outlook client to an existing mailbox. All already attached are working. ERCA give error in mapi over http.
I'm in the same case of that post.

https://techcommunity.microsoft.com/t5/exchange/an-ehttps://rror-occurred-while-trying-to-get-the-address-book-server/m-p/2198330

Is there somekind of answer about that?? Thank you.

office-exchange-server-connectivity
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

1 Answer

YukiSun-MSFT avatar image
0 Votes"
YukiSun-MSFT answered YukiSun-MSFT commented

Hi @AlessandroVannini-1809,

ERCA give error in mapi over http.

Are you getting the exactly same error message as mentioned in the link you shared above? If not, you can remove all personal information and share a screenshot of the error at your end for further analysis.

By "unable to join a new outlook client or an old outlook client to an existing mailbox", do you mean you cannot configure the Exchange account in Outlook? Does it occur both inside and outside the coporate network?

Please follow the steps below to have a look at the AutoConfiguration Status in Outlook:
1. While Outlook is running, hold down the CTRL key and then right-click the Outlook icon in the system tray, select “Test Email Autoconfiguration”.
2. Enter the username and password, uncheck “Use Guessmart” and “secure Guessmart authentication” boxes. Then click the “Test” button.
3. Once it runs, Check the Log tab.

Furthermore, it's suggeste to tun the command below to check the authentication methods enabled on the mapi virtual directory:

 Get-MapiVirtualDirectory | fl server, Name, *URL*, *auth*

81424-1.jpg


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.



1.jpg (31.0 KiB)
· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hi @AlessandroVannini-1809,

Just checking to see if there are any updates. Did you get a chance to check the suggestions provided.


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.

0 Votes 0 ·