Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
3 answers
AD User mailbox not showing up in EAC
Hey all. We are using a hybrid environment for Exchange, and the way we normally set new users up is by setting them up in AD and letting it sync to Exchange. Right now I have a user that we are setting up as a service email account, and its all set up…
Exchange | Hybrid management
asked 2025-12-05T15:02:08.28+00:00
![](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(38.4, 94%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFJ%3C/text%3E%3C/svg%3E)
Faas, Jason
20
Reputation points
edited an answer 2025-12-06T04:24:01.37+00:00
![](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(144, 15%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJB%3C/text%3E%3C/svg%3E)
Jack-Bu
5,405
Reputation points Microsoft External Staff
Moderator
2 answers
One of the answers was accepted by the question author.
Best approach to configure this feature in Exchange Server?
I’m trying to streamline our mail flow after moving most users to Exchange Online, but we still keep a couple of Exchange Server (SE/2019) boxes on-prem for management. I want to route outbound email directly through Exchange Online while still allowing…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-12-02T08:04:38.4366667+00:00
![](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(67.2, 91%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKC%3C/text%3E%3C/svg%3E)
Klaus Cleo
60
Reputation points
commented 2025-12-05T17:07:54.9566667+00:00
Klaus Cleo
60
Reputation points
3 answers
Do i need CMT for outgoing email via OnPrem
Hi Exchange Community, We have a customer who has a hybrid configuration and sends and receives all incoming and outgoing emails via on-premises. For this purpose, there is an HCW connector of the type on-premises that has the flag…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(272, 78%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ET%3C/text%3E%3C/svg%3E)
![](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(32, 54%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESN%3C/text%3E%3C/svg%3E)
3 answers
One of the answers was accepted by the question author.
Get-EXOMailbox returns quota validation warnings even when only the Audit PropertySet is requested
When I query Exchange Online mailboxes with -PropertySets Audit for a read-only audit, Get-EXOMailbox emits validation warnings about quota properties (e.g., ProhibitSendQuota vs. ProhibitSendReceiveQuota) even though I did not request the Quota…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(6.4, 97%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ET%3C/text%3E%3C/svg%3E)
1 answer
Exchange SE - Hybrid - Modern Authentication - Conditional Access
I enabled Modern Authentication on Exchange On-premise (version SE) according to Microsoft’s procedure. I would therefore like to use Conditional Access. However, when I use Microsoft Outlook on iOS, an Exchange (hybrid) profile is created during…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(291.2, 28.000000000000004%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
2 answers
What to do? SE or Decommission
I’ll start by outlining our current environment for context: Two standalone Exchange Server 2016 VMs. Primarily used for recipient management in a hybrid setup. Also functions as an anonymous relay for two LOB applications — one of which requires the…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(188.79999999999998, 57.00000000000001%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EV%3C/text%3E%3C/svg%3E)
2 answers
fix the issue with on-premises Active Directory accounts not being able to hide from GAL
How to fix the issue with on-premises Active Directory accounts not being able to hide from GAL
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-11-26T21:45:51.5466667+00:00
![](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(28.799999999999997, 71%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDR%3C/text%3E%3C/svg%3E)
Delgadillo, Raul
0
Reputation points
edited a comment 2025-12-04T00:42:13.2866667+00:00
![](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(246.4, 68%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJT%3C/text%3E%3C/svg%3E)
Jade-T
8,355
Reputation points Microsoft External Staff
Moderator
4 answers
On-prem user can't access delegated EXO user in Exchage hybrid environment
We have an on-prem Exchange 2016 server, and in the process of moving to M365. An user can access another delegated user (full access) when they are both on-prem, after one user moved to EXO, the on-prem user no longer can access the moved user using…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(294.40000000000003, 79%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKC%3C/text%3E%3C/svg%3E)
2 answers
One of the answers was accepted by the question author.
Upgrading Exchange Server to Exchange Subscription Edition or Parallel install then Decommission?
We are currently using a Hybrid Azure AD/Entra ID synchronisation setup with Entra Connect to synchronise our users. All of my users have been successfully migrated from the on-premises Exchange Server 2016 to Exchange Online. Additionally, all…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-11-21T07:27:30.0833333+00:00
EnterpriseArchitect
6,301
Reputation points
commented 2025-12-03T08:00:51.1366667+00:00
![](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(105.60000000000001, 69%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHV%3C/text%3E%3C/svg%3E)
Hin-V
10,100
Reputation points Microsoft External Staff
Moderator
2 answers
Exchange 2016 to Office 365 Migration
What would you say I’d the best method for 80 odd users the plan is to decom the on prem server post migration does that rule oit remote move migration I know it used to at least I think it did. The last few large scale migrations I have done were all…
Microsoft 365 and Office | Office Online Server
Microsoft 365 and Office | Office Online Server
Microsoft on-premises server product that runs Office Online.
951 questions
Exchange | Exchange Server | Management
Exchange | Exchange Server | Management
The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.
8,058 questions
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(124.80000000000001, 67%, 22%)' 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)
![](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(48, 89%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJP%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
Renamed Used in Hybrid/On-Prem Environment - Old Email Continues to Receive Emails
We renamed a user in our Active Directory On-prem Environment and sync'd it to the cloud. Then we created a new user with the same name as the renamed user. The new user receives emails from the renamed user. How do we move the email of the first…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-12-01T17:13:14.82+00:00
![](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(208, 6%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EEJ%3C/text%3E%3C/svg%3E)
Elaine Jaeger
20
Reputation points
accepted 2025-12-01T21:26:47.73+00:00
Elaine Jaeger
20
Reputation points
4 answers
One of the answers was accepted by the question author.
Hybrid Configuration Error: CommunicationErrorTransientException - Unauthorized with 'Negotiate' Scheme
Hi Team, We are experiencing an issue during our hybrid Exchange configuration. User is syncing in the EntraId from OnPrem to Entra, however when we start doing the mailbox migration this error is coming. Error: CommunicationErrorTransientException: The…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-05-06T23:21:46.5166667+00:00
![](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, 67%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAS%3C/text%3E%3C/svg%3E)
Atharva Swamy
20
Reputation points
answered 2025-12-01T15:56:07.8933333+00:00
![](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(22.400000000000002, 8%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMK%3C/text%3E%3C/svg%3E)
Magdalena Kostecka
0
Reputation points
2 answers
Outlook Mobile Synchronisation
Sehr geehrte Damen und Herren, wir betreiben eine Exchange-Hybrid-Umgebung zwischen Exchange Online und Exchange On-Premises. Die Outlook Mobile App wird unseren Anwendern über Hybrid Authentication bereitgestellt. Die Konfiguration hat bisher…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-11-13T11:58:30.22+00:00
![](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(182.40000000000003, 23%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELS%3C/text%3E%3C/svg%3E)
Lief Simon
0
Reputation points
commented 2025-11-27T17:31:12.5133333+00:00
![](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(300.8, 86%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKK%3C/text%3E%3C/svg%3E)
Kapil Kalra
0
Reputation points
5 answers
One of the answers was accepted by the question author.
Best Practices for Decommissioning On-Prem Exchange Server After Migration to Exchange Online
We have completed the migration of all our mailboxes to Exchange Online. Currently, we are syncing users from Active Directory to Entra ID through the Entraconnect server. What are the best practices for decommissioning our on-premises Exchange…
Windows for business | Windows Client for IT Pros | Directory services | Active Directory
Exchange | Exchange Server | Management
Exchange | Exchange Server | Management
The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.
8,058 questions
Microsoft Security | Microsoft Entra | Microsoft Entra ID
Microsoft Security | Microsoft Entra | Microsoft Entra ID
A cloud-based identity and access management service for securing user authentication and resource access
27,394 questions
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-01-14T22:09:50.5833333+00:00
![](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(275.2, 41%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EL6%3C/text%3E%3C/svg%3E)
LULU-6701
341
Reputation points
commented 2025-11-27T13:43:37.28+00:00
EnterpriseArchitect
6,301
Reputation points
3 answers
One of the answers was accepted by the question author.
Is Exchange Hybrid Modern Authentication (HMA) supported over Linked Mailbox with ActiveSync?
Dear all; We have successfully configured HMA for Exchange in a “standard” environment. With Linked Mailboxes, everything works as expected except ActiveSync. My question: Is Exchange Hybrid Modern Authentication (HMA) supported for Linked Mailboxes when…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-11-17T17:48:43.7+00:00
![](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(316.8, 82%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
RobsExchange
20
Reputation points
accepted 2025-11-27T08:15:45.49+00:00
RobsExchange
20
Reputation points
4 answers
One of the answers was accepted by the question author.
Custom address list not syncing to O365 in hybrid environment
hi Please advise me for an issue where Custom address list not visible into O365 mail box address book in hybrid environment. or more clear-- The custom address list created in On prem Exchange 2019 and need to be visible on O365 mailbox Address list,…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(310.4, 94%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EN%3C/text%3E%3C/svg%3E)
2 answers
MS Loop - unable to search users in org
Hi Team, I have the following scenario: Using Exchange SE (on prem) in hybrid environment with AAD Sync in place. When users with a mailbox on prem try to create workspace in MS Loop they are unable to find anyone in the org when doing people…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-11-18T23:34:22.66+00:00
![](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(272, 66%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWC%3C/text%3E%3C/svg%3E)
Waseem Caco
0
Reputation points
commented 2025-11-24T05:11:27.44+00:00
Jade-T
8,355
Reputation points Microsoft External Staff
Moderator
2 answers
Exchange HCW - Agent Setup Not Found
Hello, since yesterday, I’m trying to run the Exchange Hybrid Configuration Wizard (HCW), and only get a “Not Found” message. The log shows that the HCW download is failing. 2025.11.18 15:36:37.828 10265 [Client=UX, Page=HybridConnectorInstall,…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
![](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(230.39999999999998, 57.00000000000001%, 32%)' 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)
![](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(102.4, 11%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETD%3C/text%3E%3C/svg%3E)
2 answers
One of the answers was accepted by the question author.
Hibridacion 365-Exchange Onpremise
buenas tardes, tengo una conexion hibrida exchange ompremise tengo mi certificado que vence Thursday, February 12, 2026 7:45:53 PM y marca el error en la primera imagen
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-11-18T18:54:04.6633333+00:00
![](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(73.60000000000001, 22%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFM%3C/text%3E%3C/svg%3E)
Francisco Mauricio Cuevas Ruíz
20
Reputation points
commented 2025-11-18T21:37:39.45+00:00
Francisco Mauricio Cuevas Ruíz
20
Reputation points
2 answers
One of the answers was accepted by the question author.
Exchange 2016 to Exchange Server SE migration causing hybrid connectivity issues
After upgrading our on-prem environment from Exchange 2016 to Exchange Server SE, our hybrid configuration with Exchange Online has become unstable. The HCW completes without errors, but OAuth intermittently fails, free/busy lookups time out, and some…
Exchange | Hybrid management
Exchange | Hybrid management
The administration of a hybrid deployment that connects on-premises Exchange Server with Exchange Online, enabling seamless integration and centralized control.
2,379 questions
asked 2025-11-18T07:50:13.33+00:00
![](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(16, 61%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFJ%3C/text%3E%3C/svg%3E)
Forrest Jess
100
Reputation points
accepted 2025-11-18T10:15:15.52+00:00
Forrest Jess
100
Reputation points