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Cannot connect to an on prem 2019 Exchange mailbox
Hi, I am having all weird issues trying to get my home laptop to configure an Outlook (M365 apps) account to connect to our work on prem Exchange. It times out as if it can't talk to the Exchange server. I created a new computer profile then tried, it actually worked, I could see my mailbox, send and receive email. Later I deleted the profile, tried again in the same local computer profile, it failed with the same behavior as above. When I do an 'nslookup austodiscover.mydomain.com.au' it resolves correctly to WAN IP where our server is located behind. Other people have no issue connecting externally, so there's nothing wrong with the firewall or server communicating with external Outlook clients. My work computer connects fine on the LAN. I brought my home laptop into the LAN, it still doesn't work. DNS issue right? Well, as mentioned, the autodiscover nslookup works and I don't have any other weird DNS related issues. There's just something really flaky going on with my computer.
Cross Tenant Migration MRS Access Denied
So I am trying to perform a cross tenant migration and follow each step. I am getting failures on Test-migrationServeravailbility. any ideas RunspaceId : ced2e342-3925-4143-8d8d-8aa61acbc60b Result : Failed Message : The connection to the server 'outlook.office.com' could not be completed. SupportsCutover : False ErrorDetail : Microsoft.Exchange.Migration.MigrationServerConnectionFailedException: The connection to the server 'outlook.office.com' could not be completed. ---> Microsoft.Exchange.MailboxReplicationService.MRSRemoteTransientException: The call to 'https://sybp282mb2304.ausp282.prod.outlook.com/mrs/Microsoft.Exchange.MailboxReplicationService.ProxyService/OAuth' failed. Error details: Access is denied.. ---> Microsoft.Exchange.MailboxReplicationService.MRSRemotePermanentException: Access is denied. --- End of inner exception stack trace --- at Microsoft.Exchange.MailboxReplicationService.MailboxReplicationServiceFault.ReconstructAndThrow(String serverName, VersionInformation serverVersion) at Microsoft.Exchange.Connections.Common.WcfClientWithFaultHandling`2.<>c__DisplayClass4_0.<CallService>b__0() at Microsoft.Exchange.Net.WcfClientBase`1.CallService(Action serviceCall, String context) at Microsoft.Exchange.Connections.Common.WcfClientWithFaultHandling`2.CallService(Action serviceCall, String context) at Microsoft.Exchange.MailboxReplicationService.WcfClientWithVersion`2.CallService(Action serviceCall, String context) at Microsoft.Exchange.MailboxReplicationService.MailboxReplicationServiceClient.GetMailboxInformation(RequestJobBase requestJob, Guid primaryMailboxGuid, Guid physicalMailboxGuid, TenantPartitionHint partitionHint, ADObjectId targetMdbAdObjectId, String targetMdbName, String remoteHostName, String remoteOrgName, Guid requesterOrgId, String remoteDCName, NetworkCredential cred, MailboxConnectFlags mailboxConnectFlags) at Microsoft.Exchange.Migration.MigrationExchangeProxyRpcClient.GetMailboxInformation(TransactionalRequestJob requestJob, Guid primaryMailboxGuid, Guid physicalMailboxGuid, TenantPartitionHint partitionHint, ADObjectId targetMdbAdObjectId, String targetMdbName, String remoteHostName, String remoteOrgName, Guid requesterOrgId, String remoteDCName, NetworkCredential cred, LocalizedException& error) --- End of inner exception stack trace --- at Microsoft.Exchange.Migration.MigrationEndpointVerifier.GetMailboxInformation(String remoteServer, TransactionalRequestJob requestJob, Guid primaryMailboxGuid, Guid physicalMailboxGuid, String sourceTenantName, Guid targetTenantId, TenantPartitionHint targetTenantPartitionHint, ADObjectId targetMdbId, NetworkCredential appCred) at Microsoft.Exchange.Management.Migration.MigrationService.Endpoint.TestMigrationServerAvailability.InternalProcessCrossTenantScenario() at Microsoft.Exchange.Management.Migration.MigrationService.Endpoint.TestMigrationServerAvailability.InternalProcessEndpoint(Boolean fromAutoDiscover) TestedEndpoint : IsValid : True Identity : ObjectState : New Here is a link to the article I am following: https://docs.microsoft.com/en-us/microsoft-365/enterprise/cross-tenant-mailbox-migration?view=o365-worldwide#frequently-asked-questionsHow to remove Exchange Mgmt. Tools and re-install them?
I have a single Exchange 2016 server (CU 23) that in a hybrid configuration with M365. Something has happened and now I can't use Exchange Mgmt. Shell on the Exchanger Server. ("CannotConnect,PSSessionOpenFailed" is the ultimate error I see in the PS window when I launch it) As a work-around I install the mgmt tools on another server (non-Exchange) and am successful in connecting to the exchange server with Exchange mgmt shell remotely. I would like to remove and reinstall the management tools on the server to try and resolve this issue. Presently, I'm not getting good backups so this is rather important. (my backup SW needs to connect to exchange server via PowerShell) When I launch the CU 23 setup process the option to remove management tools is greyed out. (coincidentally so is the option to install Edge transport role which isn't installed) What is the best course of action to attempt to remove and reinstall the exchange management tools? Since this is a hybrid setup I'm a bit concerned about doing anything that could break it. Since this is a VM in Azure, I could deploy a second Exchange Server and move all the mailboxes to that server so I could at least get good backups of the mailboxes. Not ideal, but an option. Thanks.
Changed Exchange 2019 DNS MX Records for Spam Filter Service and Exchange Active Sync Now Fails
We have an on-premises Exchange Server 2019. Everything was working fine until we got an external spam filtering service. We changed our MX records to point to the spam filtering service, and then the filtering service sends the emails to the Exchange Server. That part works great. The problem is when we try to add an account to Outlook or a smartphone, it won't connect to the Exchange Server to setup the account. The only records changed were the MX records. Autodiscover, mail.{domain].com, and autodiscover records still point to the Exchange server. Here are the error messages I get. If I manually setup the Outlook profile putting in the mail server name (mail.{domain}.com, domain\username, password, etc., then I get this. I ran the Microsoft Remote Connectivity Analyzer for Activesync, and it passed. Anyone have any ideas or workarounds?
Exchange 2019 Mailbox Migration Error - Folder conflicts with Exchange Online folder
Hi Exchange Experts, I'm migrating a small Exchange 2019 environment to 365. Been pulling my hair out becuase of just one mailbox giving this error Error description --------------------------- Error: AggregateMailboxFolderConflictPermanentException: The folder 'Files' conflicts with Exchange Online folder 'Files', please move the messages to another folder and restart the job. Data migrated: 0 B (0 bytes) Migration rate: -------------------------------------- Migration user report: 5/14/2025 12:32:05 PM [MEUP300MB0105] Request processing continued, stage CreatingFolderHierarchy. 5/14/2025 12:32:05 PM [MEUP300MB0105] Stage: CreatingFolderHierarchy. Percent complete: 10. 5/14/2025 12:32:12 PM [MEUP300MB0105] Stage: CreatingFolderHierarchy. Percent complete: 10. 5/14/2025 12:32:12 PM [MEUP300MB0105] Fatal error AggregateMailboxFolderConflictPermanentException has occurred. ---------------------- It seems to be a system folder and I've tried to remove files from it (although there're no files in it) using MFCMAPI tool with no success. Renamed the folder and tried to re-run the migration with no luck. Has anyone experience this issue? any thoughts or tips are much appreciated ! Thank you.
How do I get permission to view quarantined messages for a group mailbox?
I was added to an Outlook group through the Exchange admin center. If a quarantine mail comes in from email address removed for privacy reasons and I want to click on "Check message", I am redirected to the quarantine website, but I get the message "You do not have the necessary permission to perform this process." I can't delete or release quarantined messages as a result. I don't even see the messages. I am both a member and owner of the group. Does anyone have a solution for this? You can also answer in GermanExchange Server SE Hybrid License and Upgrades
Hi, I have a question about Exchange Server SE. Reading the FAQ I found this: As with previous versions, Exchange Server SE will continue to provide free licenses for qualified hybrid use via the Hybrid Configuration Wizard (HCW); however, unlike previous versions, you will need to either purchase SA for this license to get Exchange Server updates or have a cloud subscription license that satisfies the requirements. Does this mean I need to have SA to do the updates? Which cloud licenses do I need to buy to be able to update Exchange Server SE? Thanks RegardsExchange 2019 - Exchange SE - In-Place upgrade
Hello, we’re currently running an Exchange Server 2019 hybrid environment (DAG on-prem + Exchange Online) with a few on-prem user mailboxes used for automated system communications (SMTP) - the mailboxes are not being used in Outlook. We migrated from Exchange 2016 to Exchange 2019, using a trial installation of Exchange 2019, which has expired. We are planning to upgrade to Exchange Server Subscription Edition (SE) and want to ensure the following is supported: - Can we perform an in-place upgrade from the expired Exchange 2019 trial to Exchange Server SE, or do we need to relicense/reactivate Exchange 2019 first? - What is the right / best action plan for us in this case Kindest Regards Leon
