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My inbox file is 459 mb. Since the 20th of may windows shows Error 0x80070570 on the file. Can it be saved?

  • 3 respostas
  • 1 tem este problema
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  • Última resposta de Toad-Hall

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My inbox has always been in the same folder, and everything has always worked perfectly. Suddenly my inbox was empty. No e-mails shown. I then reinstalled Thunderbird (ver. 52.8.0). Still empty inbox. I'll just copy the old inbox file to the new installation, I thought. But no... Error 0x80070570

My inbox has always been in the same folder, and everything has always worked perfectly. Suddenly my inbox was empty. No e-mails shown. I then reinstalled Thunderbird (ver. 52.8.0). Still empty inbox. I'll just copy the old inbox file to the new installation, I thought. But no... Error 0x80070570

Todas as respostas (3)

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Could it be you have Thunderbird running when you try and replace a file it is using?

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Hi Matt

Thunderbird was closed. In Windows Explorer I simply tried to copy the Inbox file from the external backup location to Thunderbird.

It all began in late May with Thunderbird simply not opening. I tried all sort of things, and ended up reinstalling Thunderbird. In the new installation I see (the old) sent, draft, and archive folders. Only Inbox folder is empty, starting from scratch.

With Thunderbird closed I can copy the Inbox file in explorer, but when I try to paste the Inbox file to the Thunderbird folder, the process stops at 31%, with an error message: Error 0x80070570, with a date stamp shoving 20.05.2018 at 20:53.

Something has happened to the Inbox file the 20 May it seems, since pasting the file stops at 31%, and this unfortunately means no mails are shown.

The question is if the Inbox file can be saved? The inbox file is 459 MB. Could the error be contained somehow, leaving the remaining unspoiled part of the Inbox file still working?

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Read info:

Suggest you make copies of Inbox mbox file. then subdivide a copy calling each new half eg: 'Oldbox-1' and 'Oldbox-2'

If adding manully to profile folders make sure Thunderbird is closed first. Otherwise use 'ImportExportTools' addon extension to import the mbox files.

Hopefully one half will import ok. Keep subdividing and importing until you discover a smaller batch to check.

Note as you are manully subdividing this is an example of how each email begins:

  • From - Fri Jun 19 16:49:56 2015
  • X-Account-Key: account1
  • X-UIDL: AKdUfbwAAFXTVYQQNgVLeCXC0EY
  • X-Mozilla-Status: 0001
  • X-Mozilla-Status2: 00000000


Alternative would be to use use a program that could use a copy of the 'Inbox' mbox file to extract each individual email as an *.eml file. Then import the *eml files. ImportExportTools can import .eml files.


Suggest you keep your files much smaller and use the Inbox as an Inbox and not as a general storage.