Import Evolution mail directory to Thunderbird/imap account

I have some old emails left in the Evolution local directory (unfortunately not in the mail server’s imap directory). So how to import the Evolution directory which contains some files for the emails to Thunderbird so that I can copy them to the imap directory if needed?

You can do this in two steps:

First, convert the evolution email folder to an mbox file.

You can use this script: or to convert the folder to a mbox file.

Tips: the directory should have structure like


You can create directories like that and copy all email files to the new directory.

Second, import the mbox file to Thunderbird.

Thunderbird by default does not provide this function now. You need to install the ImportExportTools plugin to add this function:

After the emails are imported to Thunderbird folders, you can copy them to the imap directories.

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