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Import from Apple Mail problem "No mailboxes were found to import"

Florianungersboeck
Florianungersboeck
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Hello,

I want to migrate from Apple Mail (macOS 10.13.4) to Thunderbird 52.8.0. My first try was to use the Tools/Import... function but I received the message "No mailboxes were found to import". I didn't find a way to specify the path to the Apple Mail Folder. When I looked for a solution I found several postings recommending the ImportExportTools. So i exported the folders in Apple Mail to mbox-files (resulting in around 100 files) and imported them in Thunderbird. That looked great at first sight but I recognized that not all messages have been imported. mbox-file 1: 56 of 58 messages have been imported mbox-file 2: only messages newer than 10 years have been imported mbox-file 3: no messages have been imported (all older than 10 years) I thought that only messages which are older than 10 years are not imported but there are older messages which were imported.

Did anyone have the same issue?

Hello, I want to migrate from Apple Mail (macOS 10.13.4) to Thunderbird 52.8.0. My first try was to use the Tools/Import... function but I received the message "No mailboxes were found to import". I didn't find a way to specify the path to the Apple Mail Folder. When I looked for a solution I found several postings recommending the ImportExportTools. So i exported the folders in Apple Mail to mbox-files (resulting in around 100 files) and imported them in Thunderbird. That looked great at first sight but I recognized that not all messages have been imported. mbox-file 1: 56 of 58 messages have been imported mbox-file 2: only messages newer than 10 years have been imported mbox-file 3: no messages have been imported (all older than 10 years) I thought that only messages which are older than 10 years are not imported but there are older messages which were imported. Did anyone have the same issue?

All Replies (2)

sfhowes
sfhowes
  • Top 10 Contributor
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See comment 23 here for a way to import Mail app mail.

Florianungersboeck
Florianungersboeck Question owner
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Hello,

Unfortunately that imports the same messages as ImportExportTools. It looks like the mbox-format from Apple Mail (V5) is not understood correctly. Sometimes only the oldest messages are missing, sometimes just any message is missing.