Issues after an update from Exchange 2016 RTM to CU4: temporary mailbox and search result

All users are connected locally (Outlook 2016 lastest update of Office 365 business premium) to the Exchange 2016.   Exchange 2016 has been updated from RTM to CU4.  

- we had to rebuild the profile for some users because they were receiving the "temporary mailbox" problem:  "your mailbox has been temporarily moved on MS Exchange Server. a temporary mailbox exists..."  

- The search result in Outlook is no longer showing the name of the sender for all emails of last week an older but it shows the right result for the most recent emails.  We've been trying te re-index in Outlook.  All Exchange services in Exchange are running including search.   It's only in Outlook, OWA shows the send for all emails in the search result.

Thank you
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Aanand Singh KarkiAssociate ConsultantCommented:
Hi Kt3z,

I think the only option you have to overcome is to create, new profile as mentioned here, however, for Outlook indexing issue, I would suggest you, to repair the Office on online mode and see if works?

Have you deleted all the profile data (OST files, indexing Folders) before reconfiguring the new Outlook profile?

Aanand Singh Karki
kt3zAuthor Commented:
OK thanks.  But we didn't have the indexing issue before the update fron Exchange 2016 RTM to CU4 and the other problem "temporary mailbox" happened before but only one time.  Since the udpdate we had to re-create the profile for about 15 to 20 users out of 120.  This is very unusual.  

When you say "epair the Office on online mode" do you mean OWA ?  Or Outlook ?  I don't see how from OWA

Thanks again
kt3zAuthor Commented:
I've made on online repair on Office.  No change.  The result of any search by key words is displayed for all emails that came after the update, but for all emails prior the updates I see the result only by title (the send is not displayed) and all those mails are unread (but they are in Outlook if I don't use search)

The CU4 update did something, but what?  This is very weird.  

Thanks again
Ensure Business Longevity with As-A-Service

Using the as-a-service approach for your business model allows you to grow your revenue stream with new practice areas, without forcing you to part ways with existing clients just because they don’t fit the mold of your new service offerings.

Nathan HawkinsTechnical Lead - Network SecurityCommented:
I recently upgraded from CU2 to CU4 and have found that there have been some security related changes/fixes. Some of those seem to be very related to the Host Headers of the box sending the HTTPS request. I am in the process of identifying them as my test Exchange 2016 environment no longer is able to view OWA as a result of the upgrade.
kt3zAuthor Commented:
CU5 has corrected all issues we had

Thanks again

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
kt3zAuthor Commented:
CU5 fix all the problems we had
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.