I have a huge mailbox file and Aid4Mail 4 says "no messages processed". Why?

The first thing you need to ensure is that you have checked the "include subfolder" option on the Aid4Mail source screen.

If you have done this and Aid4Mail still isn't processing your mail, it could be due to one of the reasons below:

  1. Your mailbox file only contains deleted or moved messages (unpurged mail) and has never (or not recently) been compacted.
  2. Your file may be corrupt or contain data that does not match the selected source file type.

Please bear in mind that certain proprietary file formats, like DBX files from Outlook Express and PST files from Office Outlook, never have a size of zero bytes when empty and compacted. So although you may see that your PST file is not 0 bytes, it may in fact be an empty file.


If you experience any issues, please don't hesitate to contact us.

If you would like to buy an Aid4Mail license, please visit the Aid4Mail website.

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