|With Category-Manager you can group your Outlook categories, share them with other users, filter a folder by category, automatically categorize new emails, and more. You can use the Addin even for IMAP.
Do you sometimes forget to give your e-mails a subject? You may put this code into the module ThisOutlookSession and get a prompt if the subject is missing.
Private Sub Application_ItemSend(ByVal Item As Object, Cancel As Boolean)
If Trim(Item.Subject) = "" Then
Cancel = True
MsgBox "The subject is missing", vbInformation