Unusual Exchange server troubleshooting

 Issue : Error in outlook:  the set of folders cannot be opened the attempt to log on to Microsoft exchange has failed. Owa is working fine, Autodiscover and MAPI configured correctly. Reason: the machine was logged in by local user. Solution: Made the machine domain joined and logged in as domain user:  -In search bar  Type   sysdm.cpl   and press   Enter . - click change. - select the domain option and ender the domain address. - then login and restart tested outlook then, it worked. Other Information: - Checked Autodiscover setting. - Used fiddler and it showed Https 200 status in Autodiscover and fiddler. - Pinged the server, it worked. - Created new Profile and tried outlook in Safe mode  Outlook.exe /safe  and also  Outlook.exe /resetnavpane - also tried to open Outlook.exe /resetfolders

 Issue: Although out of office is set to internal and external it is not sent to external emails. Reasons: Smart host issue, that blocks the OOF message. Solution  Created new send connector with the mx record: > New-SendConnector -Name "to Internet" -Usage "Internet" -SourceTransportServers "EX01-2016" -AddressSpaces ("SMTP:*;1") -IsScopedConnector $False -UseExternalDNSServersEnabled $false  Then through ECP > Mail Flow > Send Connectors  Deactivated the smart host send connector and activated the new MX record connector. Made sure mail flow works and tested OOF, it worked. Other information:  - Checked the setting for OOF by                Get-RemoteDomain | fl DomainName,AllowedOOFType,AutoReplyEnabled,AutoForwardEnabled       Get-MailboxAutoReplyConfiguration -Identity "mailbox"  | fl       Get-CASMailbox -Identity <User> | fl EmailAddresses, Ews*       Get-OrganizationConfig | fl Ews* >> All configured correct

 Issue:  Error during exchange installation (Prepare AD) The errors indicates that there is no DC or no admin privileges grated for the user, but both are present. also an error in  forest functional level, although it is set correctly. Here are errors examples: Failed [Rule:GlobalUpdateRequired] [Message:Global updates need to be made to Active Directory, and this user account isn't a member of the 'Enterprise Admins' group.] Failed [Rule:LocalDomainPrep] [Message:The local domain needs to be updated. You must be a member of the 'Domain Admins' group and 'Organization Management' role group, or 'Enterprise Admins' group to continue.] Failed [Rule:AdInitErrorRule] [Message:Setup encountered a problem while validating the state of Active Directory: No domain controllers for the domain .... and the site .... are available. See the Exchange setup log for more information on this error.] Failed [Rule:ForestLevelNotWin2003Native] [Message:The forest func

  Issue : Error during setting OOF message: "Your automatic reply settings cannot be displayed because the server is currently unavailable. Try again later." Reason: EWS was not enabled for all users. Solution: Run the command: Get-Mailbox -ResultSize unlimited | Set-CasMailbox -EwsEnabled $true -EwsAllowOutlook $true Other things to try: -Recreated EWS URLs -Enabled OOF >Set-MailboxAutoReplyConfiguration <identity> -AutoReplyState Enabled - M ake sure EWS is enabled for organization and there is no policy or allow list Get-organizationconfig | fl *EWS*   if there is policy run the command Set-OrganizationConfig  -EwsApplicationAccessPolicy $null -EwsAllowList $null this will allow all apps to access EWS.

  Issue: After installing the Security Update, some of the customers have issue with Search in Outlook (cached mode). Error message: "We're having trouble fetching results from the server..." when performing Outlook search.  Reason:  Issue with the SU. Solution : There is no direct solution but there is a workaround: 1) Use OWA or Outlook online mode if possible. 2) Disable server assisted search by creating following registry key: Path: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Search • Value name: DisableServerAssistedSearch • Value type: REG_DWORD • Value: 1

Error Message:  While installing/upgrading Exchange server, it fails, when you try again you get one of these errors: “Setup previously failed while performing the action “” BuildToBuildUpgrade ” You can’t resume setup by performing the action “ Install ”. “Setup previously failed while performing the action “ Install ” You can’t resume setup by performing the action “ BuildToBuildUpgrade ”. “Setup previously failed while performing the action “ Uninstall ” You can’t resume setup by performing the action “ Uninstall ”. Cause: A Registery Dword is added to the failing role to mark it. Solution: Open Regedit  - Windows Key+R > Regedit {Enter} in it navigate to  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ExchangeServer\v15\<Role> Instead of Role, go to the step in which the setup fall Ex: client access role or transport role. Delete the Dwords Action and WaterMark .