Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

import osx Mail messages to Thunderbird Windows 11

  • 2 replies
  • 0 have this problem
  • 115 views
  • Last reply by Matt

SPAGE51
SPAGE51

I need to import my mail messages, exported from Mac OSX Mail, into Thunderbird on Windows 11. I have 2 versions of the Mail exports: i) i backed up the Mail folder from the System folder These are [ .emlx ] files in [ .mbox ] folders ii) I exported direct from the Mail app These are [ .mbox ] folders

Thanks for any advice I can get, Steve

I need to import my mail messages, exported from Mac OSX Mail, into Thunderbird on Windows 11. I have 2 versions of the Mail exports: i) i backed up the Mail folder from the System folder These are [ .emlx ] files in [ .mbox ] folders ii) I exported direct from the Mail app These are [ .mbox ] folders Thanks for any advice I can get, Steve

All Replies (2)

SPAGE51
SPAGE51 Question owner

As a follow up, I have seen an online advice for importing other mail folders that advises:

In Thunderbird, create a folder in "Local Folders" to hold your imported mail and select it. Right click the folder and select ImportExportTools > Import all messages from a directory > also from its subdirectories.

I created a folder in 'Local folders, but right click does not show an Import Tools, option

Matt
Matt
  • Top 10 Contributor

What version of mac mail did you export from. I do not pay any apple taxes so do not have any of their software or hardware but I do know that the mbox apple mail exports is a zip file with a real mbox in it that you can import to Thunderbird.

Personally I suggest using the import export tool as it removes many of the non GUI aspects of a verified import. https://addons.thunderbird.net/en-US/thunderbird/addon/importexporttools-ng/?src=ss

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.