Reply All to Specific Email

I found the link below and the first code section works...it finds the email I need. I want to add to the code by 'Replying All' and adding the current workbook as an attachment.

I have tried to define the OutMail as an Outlook.MailItem so that I can access the properties of OutMail but when make that change and run it, I get a runtime error 13 Type Mismatch. Any suggestions?

Code:

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Sub TestMailTool() ' Is working in Office 2000-2007
' based on www.vbaexpress.com/forum/showthread.php?63392-search-and-send-email-from-outlook-using-macro-from-excel

Dim OutApp As Object
Dim OutNameSpace As Object
Dim OutFolder As Object
Dim OutItms As Object
Dim OutMail As Outlook.MailItem
Dim i As Integer
Dim mail
Dim replyall As Object
'Dim strbody As String
'Dim MyTasks As Object
'Dim sir() As String
'Dim myitems As Outlook.Items
'Dim myitem As Object


Set OutApp = CreateObject("Outlook.Application")
'Set OutMail = OutApp.CreateItem(0)
Set OutNameSpace = OutApp.GetNamespace("MAPI")
Set OutFolder = OutNameSpace.GetDefaultFolder(6)
Set OutItms = OutFolder.Items
i = 1
'Set MyTasks = OutFolder.Items
'Set myitems = myInbox.Items


For Each OutMail In OutFolder.Items
      If InStr(OutMail.Subject, "Hello 12345") <> 0 Then

            OutMail.Display
            OutMail.replyall
            Body = "test reply" & vbCrLf & BR
              i = i + 1
        End If
Next OutMail
End Sub

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The code below worked for me - thank you ChatGPT!

Code:

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Sub ReplyToEmails()    Dim olApp As Object
    Dim olNamespace As Object
    Dim olFolder As Object
    Dim olMail As Object
    Dim olReply As Object
    Dim olRecipients As Object
    Dim i As Integer
    Dim subjectToSearch As String
   
    ' Set the subject to search for
    subjectToSearch = "Test Email"
   
    ' Create Outlook application and get the inbox folder
    Set olApp = CreateObject("Outlook.Application")
    Set olNamespace = olApp.GetNamespace("MAPI")
    Set olFolder = olNamespace.GetDefaultFolder(6) ' 6 represents the Inbox folder
   
    ' Loop through each email in the inbox
    For Each olMail In olFolder.Items
        ' Check if the email subject matches the search string
        If InStr(olMail.Subject, subjectToSearch) > 0 Then
            ' Open the email and display the reply all window
            Set olReply = olMail.replyall
            olReply.Display
            ' Attach the current workbook to the reply email
            olReply.Attachments.Add ThisWorkbook.FullName
            ' Clean up objects
            Set olReply = Nothing
        End If
    Next olMail
   
    ' Clean up objects
    Set olFolder = Nothing
    Set olNamespace = Nothing
    Set olApp = Nothing
   
    'MsgBox "Displayed reply all window for emails with subject: " & subjectToSearch
End Sub

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Welcome to VBAX dabrows. Thank you for posting your solution.