Import from Outlook (M365) Mac OS to Thunderbird?
Hello - new forum user with some previous familiarity with Thunderbird. I'm looking for advice on mail import from Outlook (M365) on Mac OS. I will only be using TBird for accessing historical mails in future rather than as the main mail app going forward.
I have installed Thunderbird and looked at the Import Tool but it doesn't list Outlook as an option. I've looked through the Import Tool support pages and I can see Outlook is an import option but it only seems to appear when I filter the web page based on Windows 11 rather than Mac OS.
Am I able to use the Import Tool on Mac OS with Outlook?
I'm using Mac OS Monterey 12.7.6 and have Thunderbird 153.0.1 and Outlook for Mac 16.89 (M365) installed.
If the Import Tool isn't available, is the next best option to drag individual folders from Outlook to the Mac desktop to create MBOX folders and then drag those into Thunderbird?
Thank you in advance.
All Replies (9)
Try this: https://www.mailstore.com/en/products/mailstore-home/ Import the PST to that product and then export to mbox format and then you will have thunderbird-compatible message folder. You can then use the addon, importexporttools NG, to import into Local folders by highlighting Local Folders, rightclick and select the import mbox option
Thanks for the reply. I don't have a PST as that is Windows-specific to Outlook and I'm on a Mac.
Mailstore Home doesn't exist for macOS.
How many non-IMAP (server) folders of messages do you have?
And how many messages in IMAP folders?
@Rick thanks for the questions. I can only give you a rough estimate:
Approximately 150 folders (some nested) with around 15,000 messages. They are not in IMAP folders - they are stored locally (the existing Outlook email account is setup as POP3).
For info I'm also starting to look at commercially available products that will manage the transfer via an exported (Outlook for Mac) .OLM file and convert it into a suitable format for TBird. Prices seem to very quite a lot.
The third-party products are probably the best approach.
The alternatives are 1) copying folders and messages over IMAP, and 2) re-creating your folder structure in the file system, dragging all your messages into it, then importing them into Thunderbird.
Those methods would be tedious and error-prone because of the number of folders that you have.
There may be other approaches. I cannot think of others.
Rick said
The third-party products are probably the best approach. The alternatives are 1) copying folders and messages over IMAP, and 2) re-creating your folder structure in the file system, dragging all your messages into it, then importing them into Thunderbird. Those methods would be tedious and error-prone because of the number of folders that you have. There may be other approaches. I cannot think of others.
Thanks - appreciate you taking the time to respond
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