I am asking this question for this reason: After importing email from Netscape into Apple's Mail.app, we noticed that many emails we had deleted in the past 2-3 years were back! Why did this happen? They seemed to have been saved somehow. So upon sifting through and deleting them all over again and backing up our more current emails to the RTF format, we noticed that there we many emails that were duplicated. Almost up to 10 times each. As if they were sent to us again and again. BUT this wasn't the case, say 10 minutes ago. Meaning it all of a sudden started happening.
On top of that, after we emptied the mail.app trash we later realized many of these files 'migrated' to another mailbox. A thousand in the inbox, another 600 to the Sent folder. Why is this happening? These mailboxes were empty because we imported the Netscape files into clean, brandnew Mail.app account, under a different OSX user even. So if you can imagine, after the import of the email, mail.app places these files into a mailbox called 'Import' We didn't move these files into the existing Mailboxes(ie. In, Out, Sent) We sorted and deleted straight fromt he imported folder which had folders in it called - In, Out, Sent, Trash
So we sit here still sifting through hundreds of emails hoping that the duplicatoin doesn't happen again. Because we don't want to go through again and make sure these 'duplicated' emails aren't things we needed or deleted or whatever. There are thousands of messages.
