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About oliver

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  1. hello, You can do that via VBA. I find a article online which may be just what you want. Below is the codes: Sub ExpandAllMailFolders() Dim objCurrentFolder As Outlook.Folder Dim objPSTFolders As Outlook.Folders Dim objFolder As Outlook.Folder Set objCurrentFolder = Application.ActiveExplorer.CurrentFolder 'Specify a specific pst file 'Change "PSTName" to the name of your own Outlook PST file Set objPSTFolders = Application.Session.Folders("PSTName").Folders For Each objFolder In objPSTFolders Call ProcessFolder(objFolder) Next DoEvents Set Application.ActiveExplorer.CurrentFolder = objCurrentFolder End Sub Sub ProcessFolder(ByVal objCurFolder As Outlook.Folder) Dim objSubfolder As Outlook.Folder 'Only expand the mail folders If objCurFolder.DefaultItemType = olMailItem Then Set Application.ActiveExplorer.CurrentFolder = objCurFolder DoEvents 'Process all subfolders recursively If objCurFolder.Folders.Count > 0 Then For Each objSubfolder In objCurFolder.Folders Call ProcessFolder(objSubfolder) Next End If End If End Sub you can create a button for this macro. so you can click the button to expand all subfolders. And here is the link of the article https://www.datanumen.com/blogs/quickly-expand-collapse-mail-folders-outlook/ Hope it helps