I'm using Fastmail and its web interface as my email client and I'd like to clean it up but save multiple hundreds of emails to some text-based format.

Is there any macOS email client or utility that can do it?

1 Answer 1


You can use Mozilla Thunderbird, with ImportExportTools plugin.

If you need a step by step guide, here is one with images, is quite old, but gives the idea. Use software/plugin from Mozilla site.

  • The plugin is a bit buggy when trying to export a folder (it misses many emails from it) but I was able to do it in the end by selecting all the emails and exporting them at once instead. :) Thanks!
    – Ivan Mir
    Oct 10, 2016 at 17:18

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