Windows – Outlook saying its not the default client (even though it is)

emailmicrosoft-outlookwindows 10

Whenever the user tries to open an email file, specifically when it has been put on a shared drive, it gives this error:
"Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client".

The issue is, it is set as the default mail client, everywhere. I've gone into the outlook settings, and set it there, I've changed the default applications setting to outlook, I've reinstalled office, repaired office, changed the defaults to something else and back, etc etc. I cannot for the life of me figure out what the problem is.

Best Answer

The issue here was that the user had "Preview Pane" on in Windows Explorer. Took me forever to find any reference to this solution, and it worked immediately when I turned it off. Explorer tries to open the msg file in preview pane but can't.

Related Solutions

Windows – How to set Outlook 2010 as the default mail client

There is currently no fix for this, see links below:

Microsoft Support KB980513

Microsoft Answers Forum Thread

Office Watch - Outlook 2010 64-bit and Windows Mobile, foget it

I have opted to sync with the Exchange server over the Internet for an immediate remedy

Outlook: Change default email delay for “Do not deliver before” feature

Inspired by Mike Hudson, I wrote the following VBA code for you:

Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
    Const morningTime As String = "06:30:00"
    Const eveningTime As String = "19:00:00"

    Dim mi As Outlook.MailItem
    Dim dow As Integer
    Dim time As String
    Dim itIsLate As Boolean

    On Error GoTo ErrorHandler

    Set mi = Item

    dow = Weekday(Date, vbMonday)
    time = Format(Now, "HH:NN:SS")
    itIsLate = (StrComp(time, eveningTime) > 0)

    If (dow = vbSaturday) Or (dow = vbSunday) Or _
        ((dow = vbFriday) And itIsLate) Then
        '  Weekend! Delay until Monday morning
        mi.DeferredDeliveryTime = (Date + (vbSunday - dow + 1)) _
                                & " " & morningTime
    ElseIf itIsLate Then
        '  in the evening, delay until next morning
        mi.DeferredDeliveryTime = (Date + 1) & " " & morningTime
    End If
Exit Sub

ErrorHandler:
    MsgBox "Application_ItemSend: " & Err.Description
End Sub

The subroutine is called whenever you send a mail. During weekends, delivery is delayed until Monday morning. If the time is after "evening time", delivery is delayed until next morning. Please do some testing before actually using this macro!

Best Answer

Related Solutions

Windows – How to set Outlook 2010 as the default mail client

Outlook: Change default email delay for “Do not deliver before” feature

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