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Outlook search not working after installing Exchange Server 2019 CU14 SU1 (KB5036401)
Saeed Khalifi
46
Reputation points
Hello everyone.
I recently installed SU1 (KB5036401) for CU14 on Exchange Server 2019.
It went smoothly with no issues.
After the update, users cann't search emails in Microsoft Outlook app, OWA works fine though.
Also envelope icon is showing for new mails received in Outlook app and it doesn't get cleared after opening that email, there's no issue in OWA.
There was no mention of these issues in "Known Issues" section.
Is there any workaround? Does uninstalling the update fix the issue for the time being?
Thanks in advance
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Accepted answer
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Andy David - MVP 149.2K Reputation points MVP2024-03-15T13:18:13.4266667+00:00 -
Ronnachai Chintan 0 Reputation points2024-03-18T09:12:43.5666667+00:00 I tried to update registry and that are work fine. but i would like to know the microsoft tema will be release new patch for resolve this issue right. cause we have alot of client. we cannot made them all. thanks
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(60.8, 42%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJF%3C/text%3E%3C/svg%3E)
Jason Fudenberg 5 Reputation points2024-03-19T22:09:57.63+00:00 So the acceptable answer to fix a server-side broken patch is to tell people to edit the registry on local workstations and tell Outlook to ignore the server search results? Unacceptable. A new security patch should be released ASAP to fix this problem. Does Microsoft test anything before releasing it anymore?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(96, 54%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWV%3C/text%3E%3C/svg%3E)
William Vissenaeken 0 Reputation points2024-04-08T06:49:03.64+00:00 Seems like all indexes needed to rebuilt on our side. Afterwards, search operational again.
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7 additional answers
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(96, 55.00000000000001%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
SaWe 5 Reputation points2024-03-28T10:17:15.3733333+00:00 It looks like moving the users mailbox to another database also solves the problem.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(259.20000000000005, 35%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJA%3C/text%3E%3C/svg%3E)
Joshua Andringa 5 Reputation points2024-04-03T13:18:51.7966667+00:00 Unfortunately that does not solve the issue for my environment.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(304, 44%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGB%3C/text%3E%3C/svg%3E)
Gilles Bouley 0 Reputation points2024-03-15T17:18:00.5366667+00:00 Hi.
Same problem after SU installed few days ago on exchange server 2019 :
On some mailbox (not all) search doesn't work with outlook client (outlook365)
OWA is ok
In my case, same problem with outlook in cached or not mode
Most of users can use search without trouble...
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Gilles Bouley 0 Reputation points
2024-03-18T16:01:10.6666667+00:00 Yes, registry keys solve the search problem.
But yellow mail enveloppe still showing in Outlook even is mail has been opened...
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 14.000000000000002%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
MarcinB 0 Reputation points2024-03-19T06:05:03.7133333+00:00 In my case, the search starts working after changing the scope from 'current mailbox' to another one, e.g. 'current folder' or 'subfolders' - Outlook 2019 and 365.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(252.8, 77%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EQ%3C/text%3E%3C/svg%3E)
QLITM 1 Reputation point2024-04-02T09:48:16.9233333+00:00 The error goes away, but as far as we can see, not all results are returned, comparing to before the problem started.
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