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HELP: can't login client computer, exchange server 2016
So I need to setup an exhange mail server for a school task. I need to be able to login on a windows client with an exchange account. I did everything right, installed the exchange server and connected the windows client to my domain "sendit.be". But am not able to login on my exchange account on my windows client (see screenshots) I hope someone can help me. Thank you in advance!laboonJul 15, 2025Copper Contributor649Views0likes3CommentsExchange Mailbox copy Databases Keep Disconnect
Hello, Since June 26th, PRTG has been notifying me about the disconnection of the copy databases on the secondary Exchange server. Each time, I receive an alert about one of the copy databases hosted on the secondary Exchange server, and it comes back online in less than 5 minutes. Everything is working fine on the primary Exchange server, and the mounted databases on the secondary server are also functioning properly. Only the copy databases on the secondary Exchange server keep disconnecting and go back online in less than 5 minutes.MasPAN74Jul 14, 2025Copper Contributor3Views0likes0CommentsIncrease space on Exchange Servers
Hello, We have a 2016 DAG exchange enivrement made by Two Windows server 2016, lastly the disks start getting full and i want to increase disks space from vCenter. is the operation safe on a production environnement ? is there any thing should be aware about ? Thank youSolvedMasPAN74Jul 14, 2025Copper Contributor47Views0likes6CommentsCertificate Binding
how fix error- healthchceker test write: Certificate Binding Issue Detected: 'CE1F23873453D9F733AD24D7DA7BBD83C275CDB4' Doesn't exist on the server and this will cause problems. the website shows a message about an invalid certificate (it is valid for a certain period of time), after clicking I understand that there is a risk, a blank screen remainsjanusz_bialowasJul 14, 2025Copper Contributor336Views0likes1CommentCannot 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.Sky8BlueJul 14, 2025Copper Contributor543Views0likes11Commentscannot add Exchange Mailbox to Outlook for MAC and native Mail app
Hi, We have a strange problem for a few days. The client has Exchange Server 2019 on-premises. The problem is suddenly email stopped delivering to the mailbox which was added to Outlook for MAC or the native macOS mail app. No problem with mailboxes configured on iPhone or Outlook for Windows. Today I tried to troubleshoot the problem on another MAC computer. I cannot add an Exchange mailbox to Outlook for MAC or Mail app. "couldn't verify username or password". Password is fine since I can log in to OWA. I was also able to configure the same mailbox on an iPhone or Outlook for MAC. I think for some reason MAC is more strict or a DNS resolution with the certificate is the problem. I ran the MS Analyzer Connect test and the output is fine. Any idea why we cannot add an Exchange mailbox in MAC? IMAP is also not working. Thanks, EdyFafa24Jul 13, 2025Copper Contributor872Views0likes1CommentOutlook with Exchange 2019 CU13 & ModernAuthentication
Greetings everyone, I am currently trying to get ModernAuth running in conjunction with Exchange 2019. I used these instructions for this: https://learn.microsoft.com/en-us/exchange/plan-and-deploy/post-installation-tasks/enable-modern-auth-in-exchange-server-on-premises?view=exchserver-2019 I am currently failing at the Outlook point. The client opens, the setup of the mail address starts, the ADFS login window opens, user data is entered correctly and after a short time I end up back in the setup and the game starts again. Eventlog: Name of the faulty application: OUTLOOK.EXE, version: 16.0.17830.20138, timestamp: 0x66aaad8c Name of the faulty module: mso20win32client.dll, version: 0.0.0.0, timestamp: 0x668f31af Exception code: 0x01483052 Fehleroffset: 0x000000000031782d ID of the faulty process: 0x0x16CC Start time of the faulty application: 0x0x1DAF3BB250FB675 Path of the faulty application: C:\Program Files\Microsoft Office\root\Office16\OUTLOOK.EXE Path of the faulty module: C:\Program Files\Common Files\Microsoft Shared\Office16\mso20win32client.dll Berichtskennung: 6232fab8-77a5-441c-a204-b9db6bebfe1e Full name of the faulty package: Application ID that is relative to the bad package: ADFS trace: An OAuth authorization code: 'q5q4BILC3AgCAPklqlJhAv28gd0' was successfully sent to Client: 'd3590ed6-52b3-4102-aeff-aad2292ab01c' with redirectUri: 'ms-appx-web://Microsoft. AAD.BrokerPlugin/d3590ed6-52b3-4102-aeff-aad2292ab01c' for resource 'https://(ExchangeServer).zentrale.etask.de/'. The user is 'ZENTRALE\exchange-test-user ' on the device '' if device claims exist. The client IP is '192.168.10.53'. Any ideas?bjoernzschieschangJul 12, 2025Copper Contributor349Views0likes1CommentCross 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-questionsramin_korraniJul 11, 2025Copper Contributor8.8KViews0likes13Comments
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