I imported a .pst "data file" to outlook 2010, but some email headers to be downloaded. i try to process the download, but i get an error saying "cannot open this item. this operation is not supported until the entire message is downloaded". i tried downloading these emails, by clicking on "Mark to Download" then Process Marked Headers, but nothing seems to work. i would appreciate any assistance.

  • Was the .pst created with emails from a different email address? If so, it could be failing as it cannot log into the mailserver to retrieve those specific emails. – Michael Frank Jul 15 '14 at 3:58
  • Thanks Michael. actually, the email address was added, but it looks like the email was deleted from mailserver. therefore, i believe when i try to downloader the header, it connects to mailserver, cannot find email, and therefore it doesnt process it. what i should have had done is downloaded the IMAP messages before adding the data folder, unless there is another way of retrieving it? thanks Michael – altavistasfo Jul 15 '14 at 8:50
  • You can't retreive information that isn't there unfortunately. – Michael Frank Jul 15 '14 at 18:52

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