I have checked that the autodiscover settings look correct and the server returns its correct name when runniong Get-ClientAccessServer - any further suggestions please?

Hi, Is it happening for all users, those are migrated from Exchange 2003 ???. Using Exchange Management Shell, check the URLs assigned to the web service virtual directory using the Get-WebServicesVirtualDirectory command. If either the internal or external URL is missing or incorrect, set them using the Set-WebServicesVirtualDirectory command. Anil

Hi, For this issue, please first confirm whether the OOF URL could be retrieved by using Autodiscover (Press Ctrl+right click Outlook icon in System Tray, select Test E-mail AutoConfiguration, click Test button, check it under Results Tab). If not the Autodiscover issue and only occurs for one user, you need to take the following steps to delete the OOF rule. Clear OOF Rule in the mailbox: ======================== 1. Turn off OOF on a problem user and close Outlook 2. Use MFCMapi tool to logon the problem user’s mailbox (by using Online Mode profile) 3. Expand Root Container->Top of Information Store 4. Right click Inbox folder and click Open Associated contents table 5. Delete following messages if exist: a. Message class == IPM.Rule.Message 0x65EB001E == Microsoft Exchange OOF Assistant 0x65EC001E == Microsoft.Exchange.OOF.InternalSenders.Global b. Message class == IPM.Note.Rules.OofTemplate.Microsoft c. Message class == IPM.Rule.Message 0x65EB001E == MSFT:TDX OOF Rules d. Message class == IPM.Rule.Message 0x65EB001E == Microsoft Exchange OOF Assistant 0x65EC001E == Microsoft.Exchange.OOF. AllExternalSenders.Global e. Message class == IPM.Note.Rules.ExternalOOFTemplate.Microsoft f. Message class == IPM.ExtendedRule.Message 0x65EB001E == Microsoft Exchange OOF Assistant 0x65EC001E == Microsoft.Exchange.OOF.KnownExternalSenders.Global 6. After that, please start Outlook and configure OOF for the user. Please check whether the issue persists. Thanks Allen